Energy Code Stringency
Mandatory building energy codes are a foundational mechanism for improving the efficiency of new buildings and buildings undergoing significant remodeling. National model codes are adopted by at the state or local level through legislative or regulatory action. Some states may set the building code standard for all of the local jurisdictions within the state, while, in other “home rule” states, municipalities are able to adopt their own building codes. Some states encourage adoption of more stringent building codes or alternative compliance paths by local jurisdictions. This sub-category includes city-specific information on the two major building energy codes:
- Commercial – The commercial energy code authority available to the local jurisdiction under state law; the jurisdiction’s use its available authority; the commercial building code in place in the jurisdiction and its IECC/ASHRAE edition equivalency; commercial energy code-related advocacy by the jurisdiction at the state-level.
- Residential – The residential energy code authority available to the local jurisdiction under state law; the jurisdiction’s use its available authority; the residential building code in place in the jurisdiction and its IECC edition equivalency; residential energy code-related advocacy by the jurisdiction at the state-level.
Overview
The State of Ohio has set mandatory building energy codes statewide. The Ohio Board of Building Standards adopted the 2012 International Energy Conservation Code (IECC) and ASHRAE 90.1-2010 with amendments for commercial buildings. Ohio based its energy code for residential buildings on the 2018 IECC. To learn more about Ohio’s building energy code requirements, please visit the State Policy Database.
Commercial
Commercial buildings must comply with the 2012 IECC and ASHRAE 90.1-2010 with amendments. The code uses a commercial zEPI score of 63.
Residential
Residential buildings must comply with the 2018 IECC. The code uses a residential zEPI score of 60.55.
Solar-readiness policies
We could not find information on whether the city has adopted solar-ready ordinances.
EV-charging readiness policies
We could not find information on whether the city has adopted EV-ready ordinances.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Electrification:
We could not find information on whether the city has adopted policies to encourage the elimination of fossil fuels, such as building emissions standards, all-electric readiness provisions, or all-electric requirements for new construction.
Last updated: August 2023
Overview
The State of New Mexico allows local jurisdictions to adopt energy codes more stringent than the state’s code. Albuquerque has not adopted a stretch code for residential or commercial buildings. New Mexico requires residential and commercial properties to comply with the 2018 International Energy Conservation Code (IECC). To learn more about the building energy code requirements for the State of New Mexico, please visit the State Policy Database.
Commercial
Commercial properties must comply with the 2018 IECC without amendments. The city has not adopted a stretch code for commercial buildings. The code uses a commercial zEPI score of 52.5.
Residential
Residential properties must comply with the 2018 IECC without amendments. The required ERI levels for compliance are 62. The city has not adopted a stretch code for residential buildings. The code uses a residential zEPI score of 58.53
Solar-readiness policies
The city has not passed an ordinance mandating new construction to be solar ready but it allows solar use in all zones.
EV-charging readiness and infrastructure policies
Albuquerque is in the process of developing an EV-charging readiness requirement for certain new developments.
Low-energy use requirements
All new city building construction projects and major remodels over 5,000 square feet—with a 341,300 BTU per hour connected energy load or with a 50 kilowatt or greater service capacity entering the pre-design phase—shall be built and certified to the LEED Silver standard.
Electrification:
We could not find information on whether the city has adopted policies to encourage the elimination of fossil fuels, such as building emissions standards, all-electric readiness provisions, or all-electric requirements for new construction.
Last updated: August 2023
Overview
The Commonwealth of Pennsylvania requires its local jurisdictions to comply with state-mandated building energy codes. Residential construction and commercial construction must comply with the 2015 IECC with state amendments. To learn more about the required building energy codes for the Commonwealth of Pennsylvania please visit the State Policy Database.
Commercial
Commercial buildings in Allentown must comply with the state code. The code uses a commercial zEPI score of 51.3.
Residential
Residential buildings in Allentown must comply with the state code. The code uses a residential zEPI score of 58.
Solar-readiness policies
The city has not passed an ordinance mandating new construction to be solar-ready.
EV-charging readiness and infrastructure policies
The city has not passed an ordinance mandating new construction to be EV-ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings
Last updated: October 2021
The State of Virginia requires its local jurisdictions to follow the 2012 Virginia Uniform Statewide Building Code (USBC) for residential and commercial construction. As of July 14, 2014, the USBC was updated to reference the 2012 IECC and 2012 IRC. Residential buildings must comply with the 2012 IRC, while commercial buildings must comply with 2012 IECC standards with reference to ASHRAE 90.1-2010. To learn more, please see the Virginia page of the State Policy Database.
Commercial
Commercial construction in Arlington County complies with the Virginia USBC. Arlington's Chief Code Official serves as Vice Chair of the IECC Commercial Committee and advocates for more stringent commercial building energy codes.
Residential
Residential construction in Arlington County complies with the Virginia USBC. Arlington works with site plan multifamily projects to voluntarily build beyond code.
Last Updated: May 2017
Overview
The State of Georgia is a home rule state in which jurisdictions may set their own building energy codes. The state residential and commercial codes are based on the 2015 IECC with state amendments. To learn more about the Georgia building codes, please visit the State Policy Database.
Commercial
Although local authority is permitted, Atlanta has not made any amendments to the state building codes with respect to commercial buildings. The code uses a commercial zEPI score of 51.75
Residential
Although local authority is permitted, Atlanta has not made any amendments to the state building codes with respect to residential buildings. The code uses a residential zEPI score of 61.78.
Solar-readiness policies
We could not find information on whether the city has adopted solar-ready ordinances, but Atlanta allows solar use in all zones.
EV-charging readiness policies
Atlanta has adopted code provisions requiring residential and non-residential developments to install EV-ready infrastructure.
Low-energy use requirements
All major renovations and new construction of municipal buildings over 5,000 square feet are required to obtain LEED New Construction Silver Certification or greater. All existing City-financed facilities over 25,000 square feet must gain LEED for Existing Buildings: Operation and Maintenance certification over a phase-in period of 10 years.
Electrification:
Atlanta is prohibited from adopting a policy that limits natural gas connections.
Last updated: August 2023
Overview
The State of Georgia is a home rule state where jurisdictions may set their own building energy codes. They have adopted the 2015 IECC with Georgia Amendments for both residential and commercial buildings. To learn more about the Georgia building codes, please visit the State Policy Database.
Commercial
Commercial buildings must comply with the 2015 IECC with state amendments. The code uses a commercial zEPI score of 59.7.
Residential
Residential buildings must comply with the 2015 IECC with state amendments. The code uses a residential zEPI score of 59.6.
Solar-readiness policies
The city has not adopted a policy mandating new construction be solar-ready.
EV-charging readiness and infrastructure policies
The city has not adopted a policy mandating new construction be EV-ready.
Last updated: July 2021
Overview
The State of Colorado is a home rule state with a voluntary building code for both residential and commercial construction.
Commercial
Aurora requires commercial properties to comply with the 2021 IECC. The code uses a commercial zEPI score of 53.6.
Residential
Aurora requires residential properties to comply with the 2021 IECC. The code uses a residential zEPI score of 51.75.
Solar-readiness policies
The city has not adopted mandatory solar-ready requirements. Aurora amended its zoning code to allow for solar energy use in all zones.
EV-charging readiness
The city has not adopted mandatory EV-ready requirements.
Low-energy use requirements
New municipal buildings must be built to LEED Gold standards.
Electrification
The city has not adopted policies to encourage the elimination of fossil fuels, such as building emissions standards, all-electric readiness provisions, or all-electric requirements for new construction.
Last updated: August 2023
Overview
The State of Texas allows its local jurisdictions to adopt building energy codes more stringent than the Texas Building Energy Code. State energy codes for new buildings or significant upgrades to existing buildings are: 2015 International Residential Code (IRC) Chapter 11 for residential, 2018 IECC for State-funded residential, 2015 IECC for commercial and residential, and ASHRAE 90.1-2016 or 2018 IECC for State-funded commercial. The City of Austin adopted 2021 IECC with local amendments for residential and commercial buildings exceeding the State code. To learn more about the building energy code requirements for the State of Texas, please visit the State Policy Database.
Commercial
The Austin Energy Code is based on the 2021 IECC with amendments according to program targets. The city’s zEPI score for their commercial energy code is 46.5.
Residential
The Austin Energy Code is based on the 2021 IECC. The city’s zEPI score for their residential energy code is 55.5.
Solar-readiness policies
Austin requires all new residential and commerical construction be solar ready pursuant to Land Development Code Article 12. Energy Code 25-12-263. Austin provides residential solar-ready guidelines to help applicants and reviewers determine compliance with the ordinance.
EV-charging readiness and infrastructure policies
The city does not mandate projects to be EV-ready.
Low-energy use requirements
Resolution No. 20210902-042 requires new construction and major renovations of city-owned facilities to gain LEED Silver certification or an Austin Energy Green Building 3-star rating.
Electrification
Austin is restricted from adopting policies that restrict natural gas connections or encourage construction or improvements based on energy-source type.
Last updated: August 2023
Overview
California requires all buildings to meet statewide codes but grants local jurisdictions the authority to adopt more stringent codes. To learn more about building energy codes in California, please visit the State Policy Database.
Commercial
Bakersfield requires CalGreen for commercial buildings. The code uses a commercial zEPI score of 49.1.
Residential
Bakersfield requires CalGreen for residential buildings. The code uses a residential zEPI score of 58.1.
Solar-readiness policies
California state code will require solar system installation on all new residential construction beginning in 2020.
EV-charging readiness and infrastructure policies
California’s Green Building Requirements require residential and nonresidential building owners to incorporate EV-charging infrastructure into the property.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Last updated: July 2021
Overview
The State of Maryland is a home rule state and allows local jurisdictions to adopt building energy codes that are more stringent than the minimum state requirements, or to suit their local conditions. Maryland has adopted IECC 2021 effective May 29, 2023. Local jurisdictions have until May 20, 2024 to start implementing and enforcing these requirements. The Baltimore building code is currently based on the Maryland Building Performance Standards and IECC 2018. To learn more about the required building codes for the State of Maryland, please visit the State Policy Database.
Commercial
Baltimore has adopted the 2019 version of Maryland Building Performance Standards (IECC 2018) for commercial construction into the Building, Fire, and Related Codes of Baltimore City with local amendments. The city’s zEPI score for their commercial energy code is 50.25.
Residential
Baltimore has adopted the 2019 version of Maryland Building Performance Standards (IECC 2018) for residential construction into the Building, Fire, and Related Codes of Baltimore City with local amendments. The city’s zEPI score for their residential energy code is 52.39.
Solar-readiness policies
The City does not require solar PV system installation for new construction.
EV-charging readiness
The city has not passed an ordinance mandating new construction be EV-ready.
Low-energy use requirements
All public buildings and public school buildings that are built new or substantially renovated must achieve LEED Silver certification.
Electrification:
Baltimore has not adopted policies to encourage the elimination of fossil fuels, such as building emissions standards, all-electric readiness provisions, or all-electric requirements for new construction.
Last updated: August 2023
Overview
The State of Louisiana is a home rule state and allows local jurisdictions to adopt building energy codes that are more stringent than the minimum state requirements, or to suit their local conditions. The minimum state standard requires residential buildings to comply with the 2009 IRC with reference to the 2009 IECC. Commercial buildings must comply with ASHRAE 90.1-2007.
Commercial
Commercial buildings must comply with the state code. The code uses a commercial zEPI score of 70.3.
Residential
Residential buildings must comply with the state code. The code uses a residential zEPI score of 68.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready.
EV-charging readiness and infrastructure policies
The city has not passed an ordinance mandating new construction be EV-ready.
Last updated: July 2021
Overview
The State of Alabama allows local jurisdictions to adopt more stringent codes than the state-mandated energy codes. The 2015 Alabama Residential Energy Code references to the 2015 IECC, however, state-specific amendments weaken it significantly. The 2015 Alabama Commercial Energy Code is based on ASHRAE 90.1-2013. To learn more about the building energy codes in Alabama, please view the State Policy Database.
Commercial
Birmingham has not adopted a stretch code. Birmingham adheres to the Alabama Commercial Energy Code. The city’s zEPI score for its commercial energy code is 53.9.
Residential
Birmingham has not adopted a stretch code. Birmingham adheres to the Alabama Residential Energy Code. The city’s zEPI score for its residential energy code is 63.4.
Solar-readiness policies
The city has not passed an ordinance mandating new construction to be solar-ready but it allows solar use in all zones.
EV-charging readiness and infrastructure policies
The city has not passed an ordinance mandating new construction be EV-ready.
Last updated: July 2021
Overview
The State of Idaho adopted the 2018 International Energy Conservation Code (IECC) for residential buildings and commercial buildings. The City of Boise must comply with the residential energy code but has some flexibility in adopting more stringent energy codes for commercial buildings. Boise advocates for more stringent state energy codes through its work with the Idaho Energy Code Collaborative, Idaho Association of Building Officials, and State Building Code Board. To learn more about the Idaho building codes, please visit the State Policy Database.
Commercial
Commercial buildings must comply with the state code, 2018 IECC. The city’s zEPI score for its commercial code is 51.75.
Residential
Residential buildings must comply with the state code, 2018 IECC. The city’s zEPI score for its residential buildings is 52.70.
Solar-readiness policies
The city has not adopted solar-ready ordinances and does not have the authority to do so for residential buildings. Boise allows solar by-right access in all zones of the city.
EV-charging readiness policies
The city has passed provisions for EV-ready in garages of new single-family homes and townhouses in the Electrical Code. EV readiness and EV supply equipment install requirements for multi-family and commercial buildings are proposed in the city's 2022 zoning code update.
Low-energy use requirements
All new municipal buildings must comply with the city-adopted Green Construction Code. The Green Construction Code accepts other approved programs such as USGBC LEED at a silver or higher rating or the Green Globes Program at a rating of two (2) green globes or higher for new buildings.
Electrification
Boise is prohibited from adopting policies that restrict or have the effect of restricting fossil fuels or any specific energy source.
Last updated: August 2023
Overview
Massachusetts law requires statewide adoption of each new International Energy Conservation Code edition within one year of its publication. Massachusetts adopted the 2018 IECC for commercial and residential buildings. Massachusetts allows its local jurisdictions to upgrade their energy codes with a state-determined stretch code, which Boston adopted. By adopting the statewide stretch code, the city requires new buildings to exceed the base energy code by 20%. The adoption also designates Boston as a Green Community
Commercial
Commercial buildings must comply with the Massachusetts Stretch Energy Code (new version based on 2021 IECC). The city’s zEPI score for its commercial energy code is 46.5
Residential
Residential buildings must comply with the Massachusetts Stretch Energy Code (new version based on 2021 IECC). The city’s zEPI score for its residential energy code is 51.68.
Solar-readiness policies
Boston follows solar-ready requirements set in the state energy codes. The new specialized stretch energy code will require solar installation in certain circumstances for mixed-fuel buildings.
EV-charging readiness policies
Boston’s EV Policy requires 25% of parking spaces to host electric vehicle chargers and requires the remaining spaces to be EV-ready to the maximum extent practicable. This policy applies to large projects (over 50,000 square feet) and development within the parking freeze areas. In addition, Massachusetts includes EV readiness requirements in its mandatory commercial building code.
Low-energy use requirements
The Boston Planning & Development Agency requires large new developments (50,000 SF and above) to follow Article 37 Green Building and Climate Resiliency Guidelines. These guidelines require achieving LEED certification and completing a carbon-neutral building assessment and a climate resiliency checklist.
Electrification
The city has not passed an ordinance mandating new construction be all-electric.
Last updated: January 2024
The State of Colorado is a home rule state meaning local jurisdictions may set their own building codes for both residential and commercial construction. Localities which choose to set a building code must comply with the 2003 IECC at a minimum. To learn more about the building energy codes for the State of Colorado, please visit the State Policy Database.
Commercial
The City of Boulder has established the IECC 2012/ASHRAE 90.1-2010 as the required commercial building energy code. The city amended the code to require a 30% increase in performance requirements. At this time, Boulder has not begun to advocate at the state level for increased stringency in building energy codes.
Residential
The City of Boulder has established the 2012 IECC along with the Green Building Green Points Program as the required residential building energy code. At this time, Boulder has not begun to advocate at the state level for increased stringency in building energy codes.
Last Updated: January 2017
Overview
The State of Connecticut requires cities to adhere to state-adopted commercial and residential energy codes. Connecticut adopted the 2021 IECC with state amendments in 2022. To learn more about the building energy code requirements for the State of Connecticut, please visit the State Policy Database.
Commercial
Commercial properties must adhere to the 2022 Connecticut State Building Code (2021 IECC). The city’s zEPI score for its commercial energy code is 45.75.
Residential
Residential properties must adhere to the 2022 Connecticut State Building Code (2021 IECC with state amendments). The city’s zEPI score for its residential energy code is 50.48.
Solar-readiness policies
We could not find information on whether the city has passed an ordinance mandating new construction be solar-ready.
EV-charging readiness policies
We could not find information on whether the city has not passed an ordinance mandating new construction be EV-ready.
Low-energy use requirements
We could not find information on whether the city has above-code low-energy-use building requirements.
Electrification
We could not find information on whether the city has adopted policies to encourage the elimination of fossil fuels, such as building emissions standards, all-electric readiness provisions, or all-electric requirements for new construction.
Last updated: August 2023
Overview
The State of New York allows local jurisdictions to adopt building energy codes more stringent than the New York State 2020 Energy Conservation Construction Code (NYSECCC). The NYSECCC incorporates the 2018 International Energy Conservation Code (IECC). As stated in the Five Cities plan, the City of Buffalo enforces the NYSECCC. To learn more about the building energy code requirements for the State of New York, please visit the State Policy Database.
Commercial
Commercial properties must adhere to the 2018 IECC, per the NYSECCC. The city’s zEPI score for their commercial energy code is 51.7.
Residential
Residential properties must adhere to the 2018 IECC, per the NYSECCC. The city’s zEPI score for their residential energy code is 47.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready. The Buffalo Green Code allows for the development of on-site renewable energy systems in six (6) zones
EV-charging readiness and infrastructure policies
The city has not passed an ordinance mandating new construction be EV-ready.
Last updated: July 2021
The State of Vermont requires local jurisdictions to follow the state-mandated building energy codes. Residential construction must follow the 2015 Residential Building Energy Standards (RBES), which references the 2015 International Energy Conservation Code with amendments. Commercial construction must follow the 2015 Commercial Building Energy Standards (CBES) which references the 2015 IECC with amendments. The CBES also allows an alternative compliance path of ASHRAE 90.1 2013 with Vermont specific amendments. To learn more about Vermont’s building energy codes, please visit the State Policy Database.
Commercial
Commercial buildings in Burlington comply with the 2015 CBES. The City of Burlington has not yet begun to advocate to the state for increased stringency in commercial building energy codes.
Residential
Residential buildings in Burlington comply with the 2015 RBES. The City of Burlington has not yet begun to advocate to the state for increased stringency in residential building energy codes.
Last Updated: January 2017
Overview
Effective December 31, 2020, Florida law requires that residential and commercial buildings comply with the 7th Edition Florida Building Code. The code is based on the 2018 International Energy Conservation Code with state amendments. Cities are not permitted to adopt codes more stringent than the state codes. To learn more about Florida’s building energy codes, please visit the State Policy Database.
Commercial
Commercial buildings must comply with the state code. The code uses a commercial zEPI score of 52.5.
Residential
Residential buildings must comply with the state code. The code uses a residential zEPI score of 60.7.
Solar-readiness policies
The city has not passed an ordinance mandating new construction to be solar-ready but it allows solar use in all zones.
EV-charging readiness and infrastructure policies
The city has not passed an ordinance mandating new construction to be EV-ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings
Last updated: October 2021
The State of North Carolina requires local jurisdictions to comply with the state mandated building energy codes. All buildings must comply with the 2012 North Carolina Energy Conservation Code, which is more stringent than the 2009 International Energy Conservation Code (IECC) and the ASHRAE 90.1-2010. To learn more about the building codes and requirements for the State of North Carolina, please visit the State Policy Database.
Commercial
Commercial construction in Carrboro complies with the North Carolina Energy Conservation Code. We did not find information regarding Carrboro’s advocacy for increased stringency in commercial building energy codes.
Residential
Residential construction in Carrboro complies with the North Carolina Energy Conservation Code. We did not find information regarding Carrboro’s advocacy for increased stringency in residential building energy codes.
Last Updated: January 2017
Overview
While the State of South Carolina allows local jurisdictions to adopt energy codes more stringent than that of the state, state laws make it difficult for cities to adopt amendments. Charleston must follow state-adopted building energy codes and cannot adopt local amendments. South Carolina has adopted the 2009 International Energy Conservation Code (IECC). To learn more about the state building codes, please visit the State Policy Database.
Commercial
Charleston enforces the state commercial energy code. The city’s zEPI score for its commercial energy code is 69.75.
Residential
Charleston enforces the state residential energy code. The city’s zEPI score for its commercial energy code is 70.05.
Solar-readiness policies
The city does not have the authority to mandate solar-ready construction, but the city allows solar in all zones.
EV-charging readiness policies
The city has not passed a policy mandating new developments be EV-ready.
Low-energy use requirements
Charleston does not have low-energy use requirements for municipal or certain private buildings.
Electrification
We could not find information on whether the city has adopted policies to encourage the elimination of fossil fuels, such as building emissions standards, all-electric readiness provisions, or all-electric requirements for new construction.
Last updated: August 2023
Overview
The State of North Carolina requires local jurisdictions to comply with the state-mandated building energy codes. All buildings must comply with the 2018 North Carolina Energy Conservation Code, which is less stringent than the 2015 International Energy Conservation Code (IECC). The city has limited to no authority to mandate anything beyond the state code The city advocates for stronger state energy codes. Additionally, the City of Charlotte joined the IECC in 2020. To learn more about the building codes and requirements for the State of North Carolina, please visit the State Policy Database.
Commercial
Commercial construction in Charlotte complies with the North Carolina Energy Conservation Code The city’s zEPI score for its commercial energy code is 54.75.
Residential
Residential construction in Charlotte complies with the North Carolina Energy Conservation Code. The city’s zEPI score for its residential energy code is 64.79.
Solar-readiness policies
The city has limited authority to adopt solar-ready ordinances, but it does have an incentive for on-site renewable energy generation.
EV-charging readiness policies
The new Unified Development Ordinance requires minimum EV-capable spaces and minimum EVSE-installed spaces for certain commercial and multifamily developments
Low-energy Use Requirements
Charlotte's Sustainable Facilities Policy requires all new construction/ major renovation of municipal buildings to be certified under LEED or an equivalent program. Beyond municipal buildings, Charlotte has limited or no authority when it comes to mandating anything beyond what is outlined in the North Carolina Energy Conservation Code.
Electrification
Charlotte has limited or no authority to adopt mandatory policies to encourage the elimination of fossil fuels, such as building emissions standards, all-electric readiness provisions, or all-electric requirements for new construction.
Last updated: August 2023
The State of Virginia requires its local jurisdictions to follow the 2012 Virginia Uniform Statewide Building Code (USBC) for residential and commercial construction. As of July 14, 2014, the USBC was updated to reference the 2012 IECC and 2012 IRC. Residential buildings must comply with the 2012 IRC, while commercial buildings must meet 2012 IECC standards with reference to ASHRAE 90.1-2010. To learn more, please see the Virginia page of the State Policy Database.
Commercial
Commercial construction in Charlottesville complies with the Virginia USBC. Charlottesville submitted public comments in support of commercial building energy codes upgrades during the code change rulemaking-process.
Residential
Residential construction in Charlottesville complies with the Virginia USBC. Charlottesville submitted public comments in support of residential building energy codes upgrades during the code change rulemaking-process.
Last Updated: January 2017
Tennessee is a home rule state and localities can adopt their own building codes. Chattanooga has adopted the 2018 International Energy Conservation Code (IECC) with amendments.
Commercial
Commercial projects must comply with the 2018 IECC with city amendments. The city’s zEPI score for its commercial energy code is 49.5.
Residential
Residential projects must comply with the 2018 IECC with city amendments. The city’s zEPI score for its residential energy code is 57.75.
Solar-readiness policies
We could not find information on whether the city has adopted solar-readiness policies or requirements, but Chatanooga allows solar in all zones.
EV-charging readiness policies
We could not find information on whether the city has adopted policies requiring buildings to be EV-ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Electrification
We could not find information on whether the city has adopted policies to encourage the elimination of fossil fuels, such as building emissions standards, all-electric readiness provisions, or all-electric requirements for new construction.
Last updated: August 2023
Overview
The State of Illinois allows local jurisdictions to adopt energy codes more stringent than the state’s. The 2022 Chicago Energy Transformation Code is based on the 2021 International Energy Conservation Code (IECC) and includes additional energy efficiency and electrification-ready provisions. To learn more about building energy codes in Illinois, please visit the State Policy Database.
Commercial
Chicago complies with the 2022 Chicago Energy Transformation Code for all commercial buildings. The city’s zEPI score for its commercial energy code is 49.50.
Residential
The city complies with the 2022 Chicago Energy Transformation Code for all residential buildings. The city’s zEPI score for its residential energy code is 51.00.
Solar-readiness policies
Chicago adopted solar-readiness requirements for specific commercial buildings in the Energy Transformation Code. The city allows solar energy use in all zones.
EV-charging readiness policies
In 2019, Chicago adopted an ordinance that requires new commercial and multifamily buildings to be EV-ready. In 2020, the city strengthened the requirements.
Low-energy use requirements
The Chicago Sustainable Development Policy requires municipal buildings to be constructed to LEED Silver standards. It also requires development projects that are receiving financial assistance or special approvals from the City to include sustainable elements. Developers must select the elements from a sustainable strategies menu. New construction must achieve 100 points and renovations must achieve 25 to 50 points. The policy applies to any commercial or multifamily project that receives city assistance, requires a zoning change, or requires any other special approval (typically most large private development projects).
Electrification
Chicago is in the process of developing a variety of building decarbonization policies, including a new construction fossil fuel phaseout and a building performance standard.
Last updated: August 2023
Overview
The State of California requires all buildings to meet statewide codes, but grants local jurisdictions the authority to adopt more stringent codes. Chula Vista follows the 2022 Building Energy Efficiency Standards with local amendments. To learn more about building energy codes in California, please visit the State Policy Database.
Commercial
The city requires commercial buildings to comply with CalGreen and the California Energy Code. The city’s zEPI score for their commercial energy code is 41.
Residential
The city requires residential buildings to comply with CalGreen and the California Energy Code. The city’s zEPI score for their residential energy code is 26.
Solar-readiness policies
California state code requires new commercial and residential construction to include solar PV where applicable.
EV-readiness policies
California’s Green Building Requirements require single-family, multi-family, and commercial developments to make a certain percentage of spaces EV-ready.
Electrification policies
California's 2022 Building Standards Code includes electric-ready requirements for residential buildings.
Last updated: August 2023
Overview
The State of Ohio has set mandatory building energy codes statewide. The Ohio Board of Building Standards adopted the 2012 International Energy Conservation Code (IECC) and ASHRAE 90.1-2010 with amendments for commercial buildings. Ohio based its energy code for residential buildings on the 2018 IECC. To learn more about Ohio’s building energy code requirements, please visit the State Policy Database.
Commercial
Commercial buildings in Cincinnati comply with the state mandated codes. The city’s zEPI score for their commercial energy code is 63. The city actively monitors state level discussions concerning building codes, advocates for improvements and participates in the 2018 IECC voting process.
Residential
Residential buildings in Cincinnati comply with the state mandated codes. The city’s zEPI score for their residential energy code is 60.55. The city actively monitors state level discussions concerning building codes, advocates for improvements and participates in the 2018 IECC voting process.
Solar-readiness policies
The city has not adopted a policy mandating new construction be solar-ready.
EV-readiness policies
The city has not adopted a policy mandating new construction be EV-ready. The city has passed a policy requiring garages that receive city incentives to include charging at 1% of their spaces, and be equipped with electric capacity at 5% of the spaces.
Low-energy use requirements
The city does not have authority to set low-energy use requirements for municipal or certain private buildings.
Electrification policies
The city does not have authority to adopt electrification policies.
Last Update: September 2023
Overview
The State of Ohio has set mandatory building energy codes statewide. The Ohio Board of Building Standards adopted the 2012 International Energy Conservation Code (IECC) and ASHRAE 90.1-2010 with amendments for commercial buildings. Ohio based its energy code for residential buildings on the 2018 IECC. The city advocates to the state for more stringent energy codes through the Midwest Energy Efficiency Alliance. To learn more about Ohio’s building energy code requirements, please visit the State Policy Database.
Commercial
Commercial properties must adhere to the 2012 IECC and ASHRAE 90.1-2010 with amendments. The city’s zEPI score for their commercial energy code is 63.
Residential
Residential properties must adhere to the 2018 IECC. The city’s zEPI score for their commercial energy code is 60.55.
Solar-readiness policies
The city has not adopted a formal policy mandating new construction be solar-ready
EV-readiness policies
The city has not adopted a formal policy mandating new construction be EV-ready.
Low-energy use requirements
The Sustainable Municipal Building Policy requires new municipal construction and major renovations to achieve LEED Silver standards and achieve energy efficiency levels 30% beyond ASHRAE 90.1.
Electrification policies
The city is prohibited from adopting electrification policies by the state.
Last Update: September 2023
Overview
The State of Colorado is a home rule state meaning local jurisdictions may set their own building codes, if they choose to, for both residential and commercial construction. Localities that choose to set or update a building code must adopt one of the three most recent versions of the International Energy Conservation Code at a minimum. Colorado Springs adopted the 2017 Regional Building Code which incorporates the 2015 International Energy Conservation Code. To learn more about the Colorado building codes, please visit the State Policy Database.
Commercial
Commercial buildings must comply with the 2015 IECC. The code uses a commercial zEPI score of 53.6.
Residential
Residential buildings must comply with the 2015 IECC. The code uses a residential zEPI score of 54.7.
Solar-readiness policies
The city has not adopted solar-ready ordinances.
EV-charging readiness and infrastructure policies
The city has not adopted EV-ready ordinances. The City (in the Strategic Plan) supports the transition to zero-emission vehicles and advances the adoption of EVs in the community to assist in reaching 100% renewable electricity by 2040 and reduce GHG by 90% by 2050. The City is currently reviewing vendor proposals for developing an Electric Vehicle Readiness Plan. The goal of this plan is to convert city and utility fleets to electric, as well as establish public EV adoption incentives.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Last updated: October 2021
Overview
While the State of South Carolina allows local jurisdictions to adopt energy codes more stringent than that of the state, state laws make it difficult for cities to adopt amendments. South Carolina has adopted the 2009 International Energy Conservation Code. To learn more about the Idaho building codes, please visit the State Policy Database.
Commercial
Columbia enforces the state commercial energy code. The code uses a commercial zEPI score of 67.3.
Residential
Columbia enforces the state residential energy code. The code uses a residential zEPI score of 64.8.
Solar-readiness policies
The city has not adopted solar-ready ordinances but allows solar in all zones. Columbia has a SolSMART Gold designation.
EV-charging readiness and infrastructure policies
The city has not passed a policy mandating new developments be EV-ready.
Last updated: August 2021
Overview
The State of Ohio has set mandatory building energy codes statewide. The Ohio Board of Building Standards adopted the 2012 International Energy Conservation Code (IECC) and ASHRAE 90.1-2010 with amendments for commercial buildings. Ohio's energy code for residential buildings is based on the 2018 IECC. To learn more about Ohio’s building energy code requirements, please visit the State Policy Database.
Commercial
Commercial buildings in Columbus comply with the state mandated codes. The city’s zEPI score for their commercial energy code is 63.
Residential
Residential buildings in Columbus comply with the state mandated codes or the 2009 IECC. The city’s zEPI score for their residential energy code is 60.55.
Solar-readiness policies
The city has not adopted a formal policy mandating new construction be solar-ready. However, the City of Columbus has achieved a Gold designation, the highest available, through the SolSmart program. The city allows solar use in all zones.
EV-readiness policies
The City of Columbus has passed an Equitable Electric Vehicle Ready Parking ordinance.
Low-energy use requirements
Columbus requires new municipal buildings to achieve LEED standards.
Electrification policies
The city is prohibited from adopting electrification policies by the state.
Last Update: September 2023
Overview
The State of Texas allows its local jurisdictions to adopt and amend the Texas Building Energy Code. All residential and commercial building construction must comply with the 2021 International Energy Conservation Code (IECC).
To learn more about the Texas’s building energy code, please visit the State Policy Database.
Commercial
Commercial buildings in Dallas must comply with the Dallas Energy Conservation Code that incorporates the 2021 IEEC with amendments. The city’s zEPI score for their commercial energy code is 51.75.
Residential
Residential buildings in Dallas must comply with the Dallas Energy Conservation Code that incorporates the 2021 IEEC with amendments. The city’s zEPI score for their residential energy code is 61.66.
Solar-readiness policies
The 2021 International Energy Conservation code as adopted by the City of Dallas has provisions mandating that new residential and commercial construction be solar ready.
EV-readiness policies
The city has not adopted a policy mandating new construction be EV-ready.
Low-energy use requirements
The Dallas Green Ordinance requires projects less than 50,000 square feet to be 15% more efficient than required by the Dallas Energy Conservation Code. The city allows flexible compliance paths for both commercial and residential developments. Commercial projects may demonstrate compliance by adhering to the International Green Construction Code with city amendments or by achieving LEED certification. Residential projects may demonstrate compliance by following the Dallas prescriptive path, ICC 700, LEED for Homes, or Green Built Texas. Projects are verified for compliance through the Third Party Green Building Program.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
The State of Ohio has set mandatory building energy codes statewide. The Ohio Board of Building Standards adopted the 2012 International Energy Conservation Code (IECC) and ASHRAE 90.1-2010 with amendments for commercial buildings. Ohio based its energy code for residential buildings on the 2018 IECC. To learn more about Ohio’s building energy code requirements, please visit the State Policy Database.
Commercial
Commercial buildings must comply with the 2012 IECC and ASHRAE 90.1-2010 with amendments. The code uses a commercial zEPI score of 59.
Residential
Residential buildings must comply with the 2018 IECC. The code uses a residential zEPI score of 54.
Solar-readiness policies
Dayton allows solar use in all zones. We could not find information on whether the city has adopted solar-ready ordinances.
EV-charging readiness and infrastructure policies
We could not find information on whether the city has adopted EV-ready ordinances.
Last updated: July 2021
Overview
The State of Colorado is a home rule state meaning local jurisdictions may set their own building codes, if they choose to, for both residential and commercial construction. Localities that choose to set a building code must comply with the 2003 IECC at a minimum. The Denver Green Code includes the 2021 IECC for commercial and residential buildings.
Commercial
Denver has adopted the 2021 IECC with local amendments. The city’s zEPI score for their commercial energy code is 49.4.
Residential
Denver has adopted the 2021 IECC with local amendments. The city’s zEPI score for their residential energy code is 51.75.
Solar-readiness policies
The 2022 Denver Energy Code requires residential homes and commercial buildings to be solar-ready.
New buildings over 25,000 square feet must comply with the Green Buildings Ordinance which requires a cool roof plus one additional option which can be solar.
EV-readiness policies
The 2022 Denver Energy Code requires residential homes and commercial buildings to be EV-ready.
Low-energy use requirements
All buildings over 25,000 square feet built in Denver must comply with Denver’s Green Building Ordinance requirements. The GBO requires that all new buildings or additions over 25,0000 square feet take one of 8 possible actions: install a green roof or green space on their site, pay a fee in lieu of installing green space, install solar panels on 70% of the roof, build their building 12% more efficient than code, achieve LEED Gold certification, or achieve a combination of green and energy options above.
Electrification policies
The 2022 Denver Energy Code highly incentivizes all-electric construction and requires electric-ready for new homes and commercial buildings. It does not allow fossil fuel gas furnaces or water heaters in new commercial buildings.
Last Update: September 2023
Overview
The State of Iowa has set mandatory building energy codes for its local jurisdictions, but also allows localities to adopt stretch-codes that are more stringent than the mandated state codes. All residential construction must at least comply with the 2012 IECC. Commercial construction must at least comply with the 2012 IECC and the ASHRAE 90.1-2007. To learn more about Iowa’s building energy codes, please visit the State Policy Database.
Commercial
Commercial buildings in Des Moines must comply with the 2015 IECC with city amendments. The code uses a commercial zEPI score of 49.50.
Residential
Residential buildings in Des Moines must comply with the 2015 IECC with city amendments. The code uses a residential zEPI score of 55.50.
Solar-readiness policies
We could not find information on whether the city has adopted a solar-ready policy.
EV-readiness policies
We could not find information on whether the city has adopted an EV-ready policy.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
The State of Michigan requires its local jurisdictions to comply with the 2015 Michigan Energy Code. The state-based the Michigan Residential Code on the 2015 International Energy Conservation Code (IECC) for residential buildings. However, the state amended the 2015 IECC, weakening it to 2012 IECC levels. The State of Michigan currently requires commercial buildings to comply with ASHRAE 90.1-2013. To learn more about Michigan’s building energy codes, please visit the State Policy Database.
Commercial
Commercial properties must comply with the Michigan Energy Code. The city’s zEPI score for its commercial energy code is 49.5.
Residential
Residential properties must comply with the Michigan Energy Code. The city’s zEPI score for its residential energy code is 57.61.
Solar-readiness policies
The city has not adopted a policy mandating new construction be solar-ready.
EV-charging readiness and infrastructure policies
We could not find information on whether the city has adopted EV-readiness policies.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
The State of Iowa has set mandatory building energy codes for its local jurisdictions, but also allows loyalties to adopt stretch-codes that are more stringent than the mandated state codes. All residential construction must at least comply with the 2012 IECC. Commercial construction must at least comply with the 2012 IECC and the ASHRAE90.1-2007. To learn more about Iowa’s building energy codes, please visit the State Policy Database.
Commercial
Although local permitting is allowed, Dubuque uses the minimum commercial building energy codes set by the state.
Residential
Although local permitting is allowed, Dubuque uses the minimum commercial building energy codes set by the state.
Last Updated: January 2017
Overview
The State of North Carolina requires local jurisdictions to comply with the state-mandated building energy codes. All buildings must comply with the 2018 North Carolina Energy Conservation Code, which is less stringent than the 2015 International Energy Conservation Code (IECC). The city has limited to no authority to mandate anything beyond the state code. To learn more about the building codes and requirements for the State of North Carolina, please visit the State Policy Database.
Commercial
Commercial construction in Durham complies with the North Carolina Energy Conservation Code The city’s zEPI score for its commercial energy code is 54.75.
Residential
Residential construction in Durham complies with the North Carolina Energy Conservation Code. The city’s zEPI score for its residential energy code is 64.79.
Solar-readiness policies
The city has limited authority to adopt solar-ready ordinances, but it does allow solar use in all zones.
EV-readiness policies
We could not find information on whether the city has adopted policies requiring buildings to be EV-ready.
Low-energy use requirements
New construction of public buildings and facilities greater than 10,000 square feet must achieve a minimum rating of LEED Gold or any comparable performance criteria. Buildings between 4,000 and up to 10,000 square feet must achieve a minimum rating of LEED Silver or any comparable performance criteria.
Electrification
Durham has limited or no authority to adopt mandatory policies to encourage the elimination of fossil fuels, such as building emissions standards, all-electric readiness provisions, or all-electric requirements for new construction.
Last updated: September 2023
Overview
The State of Texas allows its local jurisdictions to adopt building energy codes more stringent than the Texas Building Energy Code. The minimum state standard for single-family residential construction must comply with the 2015 International Residential Code (IRC). All other residential and commercial building construction must comply with the 2015 International Energy Conservation Code (IECC). State-funded building construction must comply with ASHRAE 90.1-2016. To learn more about the building energy code requirements for the State of Texas, please visit the State Policy Database.
Commercial
Commercial properties must comply with the 2015 IECC. The city’s zEPI score for their commercial energy code is 53.7.
Residential
Residential properties must comply with the 2015 IECC with local amendments. The city’s zEPI score for their residential energy code is 58.4.
Solar-readiness policies
El Paso has adopted voluntary solar-ready provisions for residential construction and allows solar energy use in all zones.
EV-charging readiness and infrastructure policies
The city has not adopted a policy mandating new construction be EV-ready.
Low-energy use requirements
Through Ordinance No. 016911, the city adopted the Sustainable Development Design Standards for all new municipal buildings over 5,000 square feet to be built to a minimum LEED Silver Certification.
Last updated: July 2021
Overview
Arkansas has mandatory energy codes for both residential and commercial buildings, though municipalities are allowed to adopt codes more stringent than the statewide mandatory code. The 2014 Arkansas Energy Code for New Building Construction, also known as the 2014 Arkansas Energy Code, is based on the 2009 IECC with amendments. To learn more about Arkansas's building energy codes, please visit the State Policy Database.
Commercial
Commercial properties must comply with the Arkansas Energy Code. The city’s zEPI score for its commercial energy code is 69.75.
Residential
Residential properties must comply with the Arkansas Energy Code. The city’s zEPI score for its residential energy code is 71.95.
Solar-readiness policies
The city does not have a formal policy requiring new construction to be solar-ready. However, the city allows solar use in all zones.
EV-readiness policies
We could not find information on whether the city has adopted policies requiring buildings to be EV-ready.
Low-energy use requirements
City owned facilities greater than 5,000 square feet must be LEED Silver.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
The State of Texas allows its local jurisdictions to adopt building energy codes that are at least as stringent as the Texas Building Energy Code. The minimum state standard for single-family residential construction must comply with the 2015 International Residential Code (IRC). All other residential and commercial building construction must comply with the 2015 International Energy Conservation Code (IECC). State-funded building construction must comply with ASHRAE 90.1-2013. To learn more about the building energy code requirements for the State of Texas, please visit the State Policy Database.
Commercial
Fort Worth based its Energy Code for commercial buildings on the 2015 IECC with amendments. The city’s zEPI score for its commercial energy code is 53.7. The Code permits ENERGY STAR certification as an alternative compliance option.
Residential
Fort Worth based its Energy Code for residential buildings on the 2015 IECC with amendments. The city’s zEPI score for its residential energy code is 59.8. The code permits ENERGY STAR certification as an alternative compliance option.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready.
EV-charging readiness and infrastructure policies
The city has not passed an ordinance mandating new construction be EV-ready.
Last updated: June 2021
Overview
The State of California allows its local jurisdictions to adopt building energy codes more stringent than the mandatory state codes. Title 24 outlines all California building codes. Title 24, Part 6 includes the California Energy Code and the California Building Energy Efficiency Standards (BEES). Title 24, Part 11 includes the California Green Building Code. The 2022 codes exceed the 2021 IECC standards and ASHRAE/IESNA 90.1-2018. To learn more about California’s building energy codes, please visit the State Policy Database.
Commercial
Commercial properties comply with the 2022 California Building Standards Code. The city’s zEPI score for their commercial energy code is 41.
Residential
Residential properties comply with the 2022 California Building Standards Code. The city’s zEPI score for their residential energy code is 26.
Solar-readiness policies
Fresno adheres to the solar-ready requirements already included in the California Building Standards Code.
EV-readiness policies
Fresno adheres to the EV-ready requirements already included in the California Building Standards Code.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Electrification policies
California's 2022 Building Standards Code includes electric-ready requirements for residential buildings.
Last Updated: September 2023
Overview
The State of Michigan has statewide requirements for residential and commercial buildings. The city participated in the 2021 IECC voting process and provided a letter to the ICC board to support the voting process instead of standard code adoption. To learn more about the building codes and requirements for the State of Michigan, please visit the State Policy Database.
Commercial
Commercial construction must comply with the 2015 Michigan Energy Code. The city’s zEPI score for their commercial energy code is 49.5.
Residential
Residential construction must comply with the 2015 Michigan Energy Code. The city’s zEPI score for their residential energy code is 57.61.
Solar-readiness policies
The city does not have authority to adopt solar-readiness policies, but does allow solar energy use in all zones.
EV-readiness policies
The city does not have authority to adopt EV-readiness policies, but it has advocated for EV-readiness to be included at the state level.
Low-energy use requirements
Per the Sustainability Policy for City Buildings, all municipal buildings must achieve LEED standards.
Electrification policies
The city is prohibited from adopting electrification policies by the state.
Last Update: September 2023
Overview
The State of North Carolina requires local jurisdictions to comply with the state-mandated building energy codes. All buildings must comply with the 2018 North Carolina Energy Conservation Code, which is less stringent than the 2015 International Energy Conservation Code (IECC) and the ASHRAE 90.1-2007. To learn more about the building codes and requirements for the State of North Carolina, please visit the State Policy Database.
Commercial
Commercial construction in Greensboro complies with the North Carolina Codes. The city’s zEPI score for its commercial energy code is 57.6.
Residential
Residential construction in Greensboro complies with the North Carolina Codes. The city’s zEPI score for its residential energy code is 62.9.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready.
EV-charging readiness and infrastructure policies
The city has not passed an ordinance mandating new construction be EV-ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Last updated: October 2021
Overview
The State of Connecticut requires residential and commercial buildings to comply with the Connecticut State Building Code. The state’s code references the 2021 International Energy Conservation Code (IECC). To learn more about the required building codes for the State of Connecticut, please visit the State Policy Database.
Commercial
Commercial buildings must comply with the Connecticut State Building Code. The city’s zEPI score for their commercial energy code is 45.75.
Residential
Residential buildings must comply with the Connecticut State Building Code. The city’s zEPI score for their residential energy code is 50.48.
Solar-readiness policies
Hartford’s subdivision regulations and zoning code include solar-ready provisions. Section 32 of the city’s subdivision regulations requires developers to orient buildings to optimize exposure to passive solar benefits and to maximize generation from a future or current solar energy system.
EV-readiness policies
Hartford’s subdivision regulations and zoning code include EV-ready provisions. Section 7.2.2.D of the city’s zoning code mandates the number of EV-charging stations required per development type.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
The State of Nevada allows local jurisdictions to adopt building energy codes at the municipal level. Nevada has adopted the 2018 International Energy Conservation Code (IECC) with state amendments for residential and commercial buildings. To learn more about the building codes and requirements for the State of Nevada, please visit the State Policy Database.
Commercial
Commercial properties in Henderson must comply with the 2018 IECC. The city’s zEPI score for their commercial energy code is 45.3.
Residential
Residential properties in Henderson must comply with the 2018 IECC. The city’s zEPI score for their residential energy code is 52.8.
Solar-readiness policies
The city has not passed a policy mandating new developments be solar-ready.
EV-charging readiness and infrastructure policies
The city has not passed a policy mandating new developments be EV-ready.
Low-Energy Use Requirements
The city has not passed low-energy use requirements for buildings.
Last updated: October 2021
Overview
The State of Hawaii requires all counties to adopt the Hawaii Energy Code in 2015. The code adopted the 2015 International Energy Conservation Code (IECC) and ASHRAE 90.1-2013 with state-specific amendments. The city is also active in the State Building Code Council, and actively weighs in on state policies to change codes. To learn more about Hawaii’s building energy code requirements, please visit the State Policy Database.
Commercial
Commercial properties must adhere to the 2015 IECC. The city’s zEPI score for their commercial energy code is 58.8.
Residential
Residential properties must adhere to the 2015 IECC. The city’s zEPI score for their residential energy code is 68.45.
Solar-readiness policies
As of 2020, ordinance 20-10 requires new residential buildings to be solar-ready.
EV-charging readiness and infrastructure policies
As of 2020, ordinance 20-1 requires new residential buildings to be EV-ready.
Low-energy use requirements
Honolulu requires municipal buildings greater than 5,000 square feet to achieve LEED Silver standards.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
The State of Texas allows its local jurisdictions to adopt and amend building energy codes that are at least as stringent as the Texas Building Energy Code. The minimum state standard for single-family residential construction must comply with the 2015 International Residential Code (IRC). All other residential and commercial building construction must comply with the 2015 International Energy Conservation Code (IECC). State-funded building construction must comply with ASHRAE 90.1-2013. To learn more about Texas’s building energy code requirements, please visit the State Policy Database.
Commercial
Houston adopted the 2015 IECC for commercial buildings with amendments, effective December 2016. The city also adopted ASHRAE 90.1-2013 with amendments, effective December 2016. The city’s zEPI score for their commercial energy code is 51.75.
Residential
Houston adopted the 2015 IECC for residential buildings with amendments, effective October 2016. The city’s zEPI score for their residential energy code is 61.66.
Solar-readiness policies
One of Houston’s amendment to the 2015 IRC includes a provision requiring new residential buildings to be solar-ready by installing a conduit. Houston does not have legislation regarding solar ready for commercial buildings. However, in 2019 Houston began requiring multi-family buildings receiving CDBG-DR funding to be solar ready.
EV-readiness policies
The City of Houston does not have legislation mandating EV-ready installation. However, in 2019 the City began requiring CDBG-DR funded multi-family projects to be EV ready.
Low-energy use requirement
Houston requires new construction of or major renovation to municipal buildings greater than 10,000 square feet to achieve LEED Silver standards.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
The State of Indiana has established mandatory building energy codes for commercial and residential construction. The Indiana Energy Conservation Code references the 2018 IECC for residential construction. The commercial construction codes are as stringent as the ASHRAE 90.1-2007 standard. To learn more about the building energy codes for Indiana, please visit the State Policy Database.
Commercial
Commercial construction in Indianapolis complies with the Indiana Energy Conservation Code. The city’s zEPI score for its commercial energy code is 69.0.
Residential
Residential construction in Indianapolis complies with the Indiana Energy Conservation Code. The city’s zEPI score for its residential energy code is 62.72.
Solar-readiness policies
The city has not adopted a formal policy mandating new construction be solar-ready. However, the city has received SolSmart Silver Designation and allows solar in all zones.
EV-readiness policies
The city has not adopted a formal policy requiring buildings to be EV-ready.
Low-energy use requirements
As stated in Thrive Indianapolis, new municipal buildings must achieve LEED standards.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
State of Florida law requires that residential and commercial buildings comply with the 7th Edition Florida Building Code, Energy Conservation. The 7th Edition Florida Building Code, Energy Conservation is based on the 2018 IECC with amendments. The state bars cities from adoption codes more stringent than the state codes. To learn more about Florida’s building energy codes, please visit the State Policy Database.
Commercial
Commercial construction in Jacksonville complies with the Florida building energy codes. The city’s zEPI score for its commercial energy code is 52.3. Jacksonville has not yet begun to advocate to the state level for increased stringency in commercial building codes.
Residential
Residential construction in Jacksonville complies with the Florida building energy codes. The city’s zEPI score for its residential energy code is 60.7. Jacksonville has not yet begun to advocate to the state level for increased stringency in residential building codes.
Solar-readiness policies
We could not find information on whether the city has adopted solar-ready ordinances.
EV-charging readiness and infrastructure policies
We could not find information on whether the city has adopted EV-ready ordinances.
Low-energy use requirements
The city's Sustainable Buildings Program requires municipal buildings to be built to LEED standards.
Last updated: July 2021
Overview
The State of Missouri is home-ruled and allows local jurisdictions to set their own building codes. The State of Missouri has not adopted statewide building or energy codes. Kansas City has adopted the 2021 IECC with amendments. To learn more about Missouri’s building energy codes, please visit the State Policy Database.
Commercial
Kansas City has the authority to set its own building codes. The city council adopted the 2021 IECC. The city’s zEPI score for their commercial energy code is 46.50.
Residential
Kansas City has the authority to set its own building codes. The city council adopted the 2021 IECC. The city’s zEPI score for their residential energy code is 49.50.
Solar-readiness policies
We could not find information on whether the city has adopted policies requiring new construction to be solar-ready.
EV-charging readiness and infrastructure policies
We could not find information on whether the city has adopted policies requiring buildings to be EV-ready.
Low-energy use requirements
New municipal buildings must achieve LEED Gold standards.
Electrification policies
The city is prohibited from adopting electrification policies by the state.
Last Update: September 2023
Overview
As the state of Tennessee allows cities to adopt home-rule charters, the City of Knoxville holds jurisdiction over its city’s building energy code. The city adopted the 2018 International Energy Conservation Code (IECC) by ordinance for both commercial and residential properties. To learn more about Tennessee’s building energy code requirements, please visit the State Policy Database.
Commercial
Commercial properties must adhere to the 2018 IECC. The city’s zEPI score for its commercial energy code is 49.5.
Residential
Residential properties must adhere to the 2018 IECC. The city’s zEPI score for its residential energy code is 57.75.
Solar-readiness policies
The city has not adopted a formal policy mandating new construction be solar-ready.
EV-readiness policies
The city has not adopted a formal policy mandating new construction be EV- ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
Effective 2021, Florida law requires that residential and commercial buildings comply with the 7th Edition Florida Building Code. The code is based on the 2018 International Energy Conservation Code with state amendments. Cities are not permitted to adopt codes more stringent than the state codes. To learn more about Florida’s building energy codes, please visit the State Policy Database.
Commercial
Commercial buildings must comply with the state code. The code uses a commercial zEPI score of 52.5.
Residential
Residential buildings must comply with the state code. The code uses a residential zEPI score of 60.7.
Solar-readiness policies
We could not find information on whether the city has adopted solar-ready ordinances.
EV-charging readiness and infrastructure policies
We could not find information on whether the city has adopted EV-ready ordinances.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Last updated: October 2021
Overview
The State of Michigan requires its local jurisdictions to comply with the 2015 Michigan Energy Code. The state-based the Michigan Residential Code on the 2015 International Energy Conservation Code (IECC) for residential buildings. However, the state amended the 2015 IECC, weakening it to 2012 IECC levels. The State of Michigan currently requires commercial buildings to comply with ASHRAE 90.1-2013. To learn more about Michigan’s building energy codes, please visit the State Policy Database.
Commercial
Commercial properties must comply with the Michigan Energy Code. The city’s zEPI score for its commercial energy code is 50.3.
Residential
Residential properties must comply with the Michigan Energy Code. The city’s zEPI score for its residential energy code is 49.5.
Solar-readiness policies
We could not find information on whether the city has adopted policies requiring new construction to be solar-ready.
EV-readiness policies
We could not find information on whether the city has adopted policies requiring buildings to be EV-ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
The State of Nevada is a home rule state and allows local governments to adopt building energy codes for their own jurisdiction. Effective July 2015, the State of Nevada adopted the 2012 IECC with state specific amendments for residential buildings and ASHRAE 90.1-2010 for commercial buildings.
Building professionals from Clark County participate the Southern Nevada Building Officials organization that promotes regional adoption of recommended building codes. Since local jurisdictions are still responsible for adopting energy codes, the city adopted the 2018 International Energy Conservation Code (IECC).
Commercial
Las Vegas adopted the 2018 International Building Code and 2018 IECC. The city’s zEPI score for their commercial energy code is 51.75.
Residential
Las Vegas adopted the 2018 International Residential Code and 2018 IECC. The city’s zEPI score for their residential energy code is 55.50.
Solar-readiness policies
The city has not passed a policy mandating new developments be solar-ready, but allows for solar energy use in all zones.
EV-readiness policies
The city does not currently have a policy mandating new developments be EV-ready, but a regional EV ordinance has been prepared and is scheduled for City and County adoption.
Low-energy use requirements
The Green Building Resolution requires new municipal buildings to achieve LEED Silver.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
The State of Kansas is a home-ruled state, and there are no statewide building energy codes. No jurisdiction is required to adopt building codes, but they may adopt the applicable 2006 International Energy Conservation Code (IECC) standards. To learn more about Kansas’s building energy codes, please visit the State Policy Database.
Commercial
The City of Lawrence has adopted the 2015 IECC with amendments for commercial construction, effective July 2016
Residential
The City of Lawrence has adopted the 2015 IECC with amendments for residential construction, effective July 2016
Last Updated: January 2017
Overview
The State of Arkansas is a home-ruled state and allows local jurisdictions to adopt more stringent codes. Arkansas adopted the 2009 International Energy Conservation Code for commercial buildings and the 2009 IECC with amendments for residential buildings. The City of Little Rock enforces the state code. To learn more about Arkansas’s building energy codes, please visit the State Policy Database.
Commercial
Commercial buildings must comply with the state energy code. The code uses a commercial zEPI score of 66.5.
Residential
Residential buildings must comply with the state energy code. The code uses a residential zEPI score of 68.7.
Solar-readiness policies
The city has not passed an ordinance mandating new construction to be solar-ready.
EV-charging readiness and infrastructure policies
The city has not passed an ordinance mandating new construction be EV-ready.
Last updated: July 2021
Overview
The State of California allows its local jurisdictions to adopt building energy codes more stringent than the mandatory state codes. Title 24 outlines all California building codes. Title 24, Part 6 includes the California Energy Code and the California Building Energy Efficiency Standards (BEES). Title 24, Part 11 includes the California Green Building Code. The 2022 codes exceed the 2021 IECC standards and ASHRAE/IESNA 90.1-2018. To learn more about California’s building energy codes, please visit the State Policy Database.
Commercial
Commercial buildings in Long Beach must comply with the 2022 California Building Standards Code and the Long Beach Municipal Code (LBMC). The city’s zEPI score for their commercial energy code is 49.1.
Residential
Residential buildings in Long Beach must comply with with the 2022 California Building Standards Code and the Long Beach Municipal Code (LBMC). The city’s zEPI score for their residential energy code is 58.1.
Solar-readiness policies
The California Energy Commission mandates that all new commercial and residential developments incorporate solar-ready infrastructure. The commission also adopted standards requiring solar systems on new home construction.
EV-readiness policies
The city amended its code to include a provision requiring 25% of parking spaces be EV-ready and 5% to be currently EV-capable.
Low-energy use requirements
The Green Building Policy for Municipal Buildings states new government buildings must achieve LEED standards.
Electrification policies
California's 2022 Building Standards Code includes electric-ready requirements for residential buildings.
Last Updated: September 2023
Overview
The State of California allows its local jurisdictions to adopt building energy codes more stringent than the mandatory state codes. Title 24 outlines all California building codes. Title 24, Part 6 includes the California Energy Code and the California Building Energy Efficiency Standards (BEES). Title 24, Part 11 includes the California Green Building Code. The 2022 codes exceed the 2021 IECC standards and ASHRAE/IESNA 90.1-2018. To learn more about California’s building energy codes, please visit the State Policy Database.
Commercial
Los Angeles adopted the 2022 BEES and the 2020 Los Angeles Green Building Code. The city’s zEPI score for their commercial energy code is 41.
Residential
Los Angeles adopted the 2022 BEES and the 2020 Los Angeles Green Building Code. The city’s zEPI score for their residential energy code is 26.
Solar-readiness policies
Los Angeles adheres to the solar-ready requirements already included in the California Building Standards Code.
EV-readiness policies
The city’s Green Building Code mandates new residential dwelling and townhomes be EV-ready. Since January 2020, multifamily buildings are required to make 30% of parking spaces EV-ready.
Low-energy use requirement
Executive Directive #25 declared in February 2020 that all new municipally owned buildings or major renovations shall be designed to reach carbon neutrality by 2030, including by maximizing deployment of energy efficiency, smart design, on-site renewable generation, and electrification.
Electrification policies
Los Angeles adopted the 2022 California Energy Code - Title 24 with electric ready provisions. In 2022, Los Angeles passed an ordinance requiring all new construction to be 100% electric, with electric ready provisions for exceptions.
Last Update: September 2023
Overview
The State of Kentucky requires its local jurisdictions to follow the 2018 Kentucky Building Code (KBC) and 2018 Kentucky Residential Code (KRC). The 2018 KBC references the 2012 International Energy Conservation Code (IECC) for commercial buildings and the 2009 IECC for residential buildings. Louisville Metro Government advocates for the adoption of the latest codes including the International Energy Conservation Codes (IECC) for commercial and residential structures. To learn more about the required building codes for the State of Kentucky, please visit the State Policy Database.
Commercial
Commercial properties must comply with the 2018 KBC. The city’s zEPI score for their commercial energy code is 60.75.
Residential
Residential properties must comply with the 2018 KRC. The city’s zEPI score for their residential energy code is 70.77.
Solar-readiness policies
The city has no authority to pass an ordinance mandating that new construction be solar-ready.
EV-readiness policies
The city has no authority to pass an ordinance mandating that new construction be EV-ready.
Electrification policies
The city has no authority to adopt electrification policies.
Last Update: September 2023
Overview
The State of Wisconsin requires local jurisdictions to follow the state building codes. Residential construction must follow the Wisconsin Uniform Dwelling Code. The Wisconsin Uniform Dwelling Code incorporates the 2009 International Energy Conservation Code (IECC). Commercial construction must follow the Wisconsin Commercial Building Code, which is based on the 2015 IECC. To learn more about Wisconsin’s building energy codes, please visit the State Policy Database.
Commercial
Commercial construction in Milwaukee complies with the Wisconsin Commercial Building Code. The city’s zEPI score for its commercial energy code is 52.5.
Residential
Residential construction in Milwaukee complies with the Wisconsin Uniform Dwelling Code. The city’s zEPI score for its residential energy code is 68.57.
Solar-readiness policies
The city does not have authority to adopt solar-ready ordinances. However, the city has received SolSmart Gold Designation and allows for solar in all zones.
EV-readiness policies
In 2021, the City of Madison adopted an ordinance (ORD-21-00001) setting requirements for installation of EV charging stations and EV charging readiness for certain commercial and residential parking facilities.
Low-energy use requirements
New and remodeled municipal buildings must achieve LEED standards.
Electrification policies
The city is prohibited from adopting electrification policies by the state.
Last Update: September 2023
Overview
The State of Texas allows its local jurisdictions to adopt and amend the Texas Building Energy Code. All residential and commercial building construction must comply with the 2015 International Energy Conservation Code (IECC). To learn more about the Texas building energy code, please visit the State Policy Database.
Commercial
Commercial properties must comply with the Texas Building Energy Code. The city’s zEPI score for its commercial energy code is 53.7.
Residential
Residential properties must comply with the Texas Building Energy Code. The city’s zEPI score for its residential energy code is 58.4.
Solar-readiness policies
The city has not adopted a policy mandating new construction be solar-ready.
EV-charging readiness and infrastructure policies
The city has not adopted a policy mandating new construction be EV-ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Last updated: October 2021
Overview
The State of Tennessee allows cities to adopt home rule charters by local referendum, as the City of Memphis did. Thus, the city adopts and enforces its own building energy codes. Memphis and Shelby County recently adopted the 2021 International Energy Conservation Code (IECC) with local amendments. To learn more about Tennessee’s building energy codes, please visit the State Policy Database.
Commercial
Commercial properties must comply with the 2021 IECC. The city’s zEPI score for its commercial energy code is 47.25.
Residential
Residential properties must comply with the 2021 IECC. The city’s zEPI score for its residential energy code is 51.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready.
EV-readiness policies
The city has not passed an ordinance mandating new construction be EV-ready.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
The State of Arizona is a home rule state which allows local jurisdictions to set their own building energy codes. Most jurisdictions have adopted the 2012 International Energy Conservation Code (IECC), but Mesa adopted the 2018 IECC with amendments. To learn more about the requirements for building energy codes for the State of Arizona, please visit the State Policy Database.
Commercial
Commercial properties must comply with the 2018 IECC with local amendments. The city’s zEPI score for its commercial energy code is 48.75.
Residential
Residential properties must comply with the 2018 IECC with local amendments. The city’s zEPI score for its residential energy code is 61.5.
Solar-readiness policies
Mesa has a voluntary solar-readiness policy.
EV-readiness policies
The city has a voluntary EV-readiness policy.
Low-energy use requirements
The city does not set low-energy use requirements for municipal or certain private buildings.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
State of Florida law requires that residential and commercial buildings comply with the 7th Edition Florida Building Code, Energy Conservation. The 7th Edition Florida Building Code, Energy Conservation is based on the 2018 IECC with amendments. The state bars cities from adoption codes more stringent than the state codes. To learn more about Florida’s building energy codes, please visit the State Policy Database.
Commercial
Commercial construction in Miami complies with the Florida building energy codes. The city’s zEPI score for its commercial energy code is 51. Miami plans to advocate for more stringent state codes in future adoption cycles.
Residential
Residential construction in Miami complies with the Florida building energy codes. The city’s zEPI score for its residential energy code is 65.75. Miami plans to advocate for more stringent state codes in future adoption cycles.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready; however, the city received a SolSmart Gold designation and allows solar use in all zones. Moreover, Action R-1 in the Miami Forever Carbon Neutral Plan has a goal of, starting in 2024, for the City to require all new buildings to be solar ready and storage-ready.
EV-readiness policies
The city has recently passed an EV-ready ordinance for residential, multifamily, and commercial buildings.
Low-energy use requirements
All commercial and large multifamily buildings in specific zones must achieve at least LEED Silver certification.
Electrification policies
The city is prohibited from adopting electrification policies by the state.
Last Update: September 2023
Overview
The State of Wisconsin requires local jurisdictions to follow the state building codes. Residential construction must follow the Wisconsin Uniform Dwelling Code. The Wisconsin Uniform Dwelling Code incorporates the 2009 International Energy Conservation Code (IECC). Commercial construction must follow the Wisconsin Commercial Building Code, which is based on the 2015 IECC. To learn more about Wisconsin’s building energy codes, please visit the State Policy Database.
Commercial
Commercial construction in Milwaukee complies with the Wisconsin Commercial Building Code. The city’s zEPI score for their commercial energy code is 52.50. The City of Milwaukee works with USDN to advocate for more stringent state energy codes.
Residential
Residential construction in Milwaukee complies with the Wisconsin Uniform Dwelling Code. The city’s zEPI score for their residential energy code is 68.57. The City of Milwaukee works with USDN to advocate for more stringent state energy codes.
Solar-readiness policies
The city does not have authority to adopt an ordinance mandating buildings to be solar ready, but allows solar use in all zones.
EV-readiness policies
The city has not adopted EV-ready ordinances, but it's in the city's Climate and Equity Plan to develop a policy.
Electrification policies
The city does not have authority to adopt electrification policies.
Last Update: September 2023
Overview
The State of Minnesota currently requires local jurisdictions to comply with the Minnesota Energy Code. The state based the Minnesota Energy code on the 2012 IECC for residential buildings and 2018 IECC for commercial buildings. Minneapolis does not have the authority to set its own building energy code, but actively advocates to the state for more stringent codes. To learn more about the Minnesota building energy code requirements, please visit the State Policy Database.
Commercial
Commercial properties must comply with the Minnesota Energy Code based on the 2018 IECC. The city’s zEPI score for their commercial energy code is 52.50.
Residential
Residential properties must comply with the Minnesota Energy Code based on the 2012 IECC. The city’s zEPI score for their residential energy code is 55.45.
Solar-readiness policies
The city has not adopted solar-ready requirements for commercial or residential buildings. However, Minneapolis is SolSmart Gold designated and allows solar use in all zones.
EV-readiness policies
As of May 2021, Minneapolis requires that all buildings with up to nine residential units provide at least one EV-ready space with 208/240v outlets, and all remaining spaces must support charging on 120v outlets. Hotels, offices, any building with over ten residential units, or any non-residential building with at least twenty off-street parking spaces is required to provide a percentage of EV-ready spaces in addition to its required EV charging spaces. The ordinance was effective January 1, 2022.
Low-energy use requirements
In 2020, the city passed a suite of policies collectively called the Sustainable Building Policy. In addition to achieving overall building LEED Gold certification, the policy establishes requirements for certain sustainable building overlay criteria such as energy, water, resilience, equity and indoor environmental quality.
The City has recently enacted a Sustainability Policy for one to three-unit new construction residential development projects through the Minneapolis Homes: Financing program.
Electrification policies
The city does not have the authority to adopt electrification policies.
Last Update: September 2023
Overview
The State of Maryland is a home rule state and allows local jurisdictions to adopt building energy codes that are more stringent than the minimum state requirements, or to suit their local conditions. Maryland requires that at a minimum, residential and commercial construction must comply with the 2015 Maryland Building Performance Standards, which are equally as stringent as the 2015 International Energy Conservation Code (IECC). To learn more about the required building codes for the State of Maryland, please visit the State Policy Database.
Commercial
Commercial construction in Montgomery County must comply with the 2015 International Energy Conservation Code. The county’s commercial code has a zEPI score of 55.3.
Residential
Residential construction in Montgomery County must comply with the 2015 International Energy Conservation Code with local amendments. The county’s residential code has a zEPI score of 55.9.
Solar- and EV-Ready
Montgomery County does not require new developments to be solar- and/or EV-ready.
Last updated: December 2019
Overview
Tennessee allows municipalities to adopt home-rule charters and thus adopt and enforce building energy codes at the jurisdictional level. Nashville has adopted the 2018 International Building Codes. To learn more about the building energy codes in Tennessee, please visit the State Policy Database.
Commercial
Commercial properties must comply with the 2018 International Building Codes. The city’s zEPI score for its commercial energy code is 49.5.
Residential
Residential properties must comply with the 2018 International Building Codes. The city’s zEPI score for its residential energy code is 57.75.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready. However, Nashville received Bronze SolSmart designation in 2022 and allows solar use in all zones.
EV-readiness policies
The city has not adopted policies requiring buildings to be EV-ready, but is considering such legislation.
Low-energy use requirements
New constructed municipal buildings are required to meet LEED certification requirements.
Electrification policies
The city is prohibited from adopting electrification policies by the state.
Last Update: September 2023
Overview
The State of Connecticut requires residential and commercial buildings to comply with the Connecticut State Building Code. The state’s code references the 2021 International Energy Conservation Code (IECC). To learn more about the required building codes for the State of Connecticut, please visit the State Policy Database.
Commercial
New Haven requires 2021 IECC for commercial buildings The city’s zEPI score for their commercial energy code is 45.75.
Residential
New Haven requires 2021 IECC for residential buildings. The city’s zEPI score for their residential energy code is 50.48.
Solar-readiness policies
We could not find information on whether the city has adopted solar-ready ordinances.
EV-readiness policies
We could not find information on whether the city has adopted EV-ready ordinances.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
While the State of Louisiana is a home rule state that technically allows local jurisdictions to adopt building energy codes that are more stringent than the minimum state requirements, the state has several restrictive regulations that essentially prohibit cities from adopting their own energy codes. The minimum state standard requires residential and commercial buildings to comply with the 2021 IECC.
Commercial
New Orleans has not adopted amendments or stretch codes regarding commercial buildings but the city has advocated for more stringent energy codes at the state level. The city’s zEPI score for its commercial energy code is 45.75.
Residential
New Orleans has not adopted amendments or stretch codes regarding commercial buildings but the city has advocated for more stringent energy codes at the state level. The city’s zEPI score for its commercial energy code is 55.50.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready.
EV-readiness policies
The city passed an ordinance in July 2023 mandating that most commercial new construction be EV-ready.
Low-energy use requirements
The City passed an ordinance in July 2022 to require certain city office, administration or HQ buildings be LEED gold certified moving forward.
Electrification policies
The city is prohibited by the state from adopting electrification policies.
Last Update: September 2023
Overview
The State of New York allows local jurisdictions to adopt building energy codes that are more stringent than the minimum state standards. The 2020 Energy Conservation Construction Code of New York (2020 ECCCNYS) is the minimum mandatory code for residential and commercial buildings. ECCCNYS 2020 is as stringent as the 2018 IECC for residential buildings and ASHRAE 90.1-2016 for commercial buildings. New York City Local Law 32 compels the city to pass a stretch code that is at least 20% more stringent than the state code. To learn more about the building energy codes required in the State of New York, please visit the State Policy Database.
Commercial
New York City has adopted the 2020 NYCECC. The city based the code on the 2020 New York State energy code with strengthening amendments. The city’s zEPI score for their commercial energy code is 44.88. New York City advocates for more stringent building codes at the state level through the NYC Green Codes Task Force, which recommends specific amendments to the state code.
Residential
Residential construction must comply with the 2020 NYCECC. The city’s zEPI score for their residential energy code is 50.52. New York City advocates for more stringent building codes at the state level through the NYC Green Codes Task Force, which recommends specific amendments to the state code.
Solar-readiness policies
In 2019, New York City passed complementary laws (Local Laws 92 and 94 of 2019) requiring all new buildings and those buildings undergoing major roof renovations to be covered with solar panels, green roofs, or some combination of the two. Requirements apply to new construction, vertical and horizontal extensions, and full roof decking replacements.
EV-readiness policies
The city’s building code requires newly constructed parking garages and lots to install the electric space and conduit at 20 percent of the parking spaces to install electric vehicle charging stations.
Low-energy use requirements
New York City Local Law Introduction No. 1253 was amended to limit greenhouse gas emissions for existing buildings.
Local Law 86 requires certain buildings that receive funding over certain threshold amounts from the City meet LEED Certification standards.
Electrification policies
In December 2021, the New York City Council passed Local Law 154, which sets CO2 limits for both new construction and the gut renovations of existing buildings. These new limits essentially prohibit the use of fossil fuel burning systems. The requirements will be phased in starting with lower rise (less than 7 stories) buildings in 2024 and taller (7 stories and up) buildings in 2027.
In addition, New York State's All-Electric Building Law (Senate Bill S6843C) require most new buildings in the state to be all-electric starting in 2026.
Last Update: September 2023
Overview
The State of New Jersey requires all commercial buildings to meet ASHRAE 90.1-2016 and all residential buildings to meet 2018 IECC with local amendments. To learn more about the building energy codes required in the State of New Jersey, please visit the State Policy Database.
Commercial
New Jersey requires all commercial buildings to meet ASHRAE 90.1-2016. The city’s zEPI score for its commercial energy code is 48.7.
Residential
New Jersey requires all residential buildings to meet the 2018 IECC with local amendments. The city’s zEPI score for its residential energy code is 51.5.
Solar-readiness policies
We could not find information on whether the city has adopted solar-readiness policies or requirements.
EV-charging readiness and infrastructure policies
We could not find information on whether the city has adopted policies requiring buildings to include EV-charging infrastructure or be EV-ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Last updated: July 2021
Overview
The State of California allows local jurisdictions to adopt more stringent codes than the state. The City of Oakland follows the California Building Code, most recently adopting the 2022 version, as well as its own Green Building Ordinance. In addition to the GBO, the city adopted, an all-electric new construction ordinance in December 2020. To learn more about California’s building energy codes, please visit the State Policy Database.
Commercial
Commercial buildings adhere to the California Building Code and the city’s Green Building Ordinance. The city has adopted a stretch code requiring all-electric for all new commercial and industrial buildings. The city’s zEPI score for their commercial energy code is score of 41.
Residential
Residential buildings adhere to the California Building Code and the city’s Green Building Ordinance. The city’s zEPI score for their residential energy code is 26.
Solar-readiness policies
California state code mandates new residential and commercial construction be solar-ready.
EV-readiness policies
Oakland adopted new codes requiring all new commercial construction be EV-ready and incorporate electric vehicle charging infrastructure.
Low-energy use requirements
Title 18 of the city’s code requires commercial buildings over 25,000 square feet to achieve LEED Silver certification. Title 18 also mandates residential properties achieve Green Building Certification.
Indoor cannabis cultivators must demonstrate that 100% of their electricity is derived from renewable or carbon free sources, which can be done by enrolling in EBCE’s Brilliant 100 program and providing confirmation annually or more frequently if required by the City Administrator’s Office.
Electrification policies
The City has adopted a stretch code requiring all new construction commercial and industrial buildings meet the defintion of an all-electric building in December 2020. Staff are currently working on a building electrification policy roadmap to reach 100% all-electric buildings by 2040 and a major retrofits electrification ordinance.
Last Update: September 2023
Overview
The State of Oklahoma allows its local jurisdictions to adopt building energy codes other than the state standards. Oklahoma adopted the 2015 International Residential Code (IRC) with amendments that require cities to comply with the 2009 International Energy Conservation Code (IECC). Oklahoma adopted the 2015 International Building Code with amendments that require cities to comply with the 2006 IECC. To learn more, please visit the Oklahoma page on the State Policy Database.
Commercial
Commercial properties must comply with the 2006 IECC. The city’s zEPI score for its commercial energy code is 56.4.
Residential
Residential properties must comply with the 2009 IECC. The city’s zEPI score for its residential energy code is 65.6.
Solar-readiness policies
The city has not adopted a policy mandating new construction be solar-ready.
EV-charging readiness and infrastructure policies
The city has not adopted a policy mandating new construction be EV-ready.
Last updated: July 2021
Overview
The State of Nebraska allows its local jurisdictions to adopt building energy codes other than the state standards. The state’s building energy code is the 2009 International Energy Conservation Code. Omaha has not adopted an energy code more stringent than the states. To learn more, please visit the Nebraska page on the State Policy Database.
Commercial
Commercial properties must comply with the 2009 IECC. The city’s zEPI score for its commercial energy code is 67.0.
Residential
Residential properties must comply with the 2009 IECC. The city’s zEPI score for its residential energy code is 68.4.
Solar-readiness policies
We could not find information on whether the city has adopted solar-readiness policies or requirements.
EV-charging readiness and infrastructure policies
We could not find information on whether the city has adopted policies requiring buildings to include EV-charging infrastructure or be EV-ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Last updated: July 2021
Overview
Florida law requires that residential and commercial buildings comply with the 7th Edition Florida Building Code. The code is based on the 2018 International Energy Conservation Code with state amendments. Cities are not permitted to adopt codes more stringent than the state codes. To learn more about Florida’s building energy codes, please visit the State Policy Database
Commercial
Commercial projects in Orlando comply with Florida’s building energy codes. Orlando has begun efforts to develop a special committee in partnership with Orange County to advance more stringent codes, and has partnered with UCF, ASHRAE and other delegates. The city’s zEPI score for their commercial energy code is 52.50.
Residential
Residential projects in Orlando comply with Florida’s building energy codes. Orlando has begun efforts to develop a special committee in partnership with Orange County to advance more stringent codes, and has partnered with UCF, ASHRAE and other delegates. The city’s zEPI score for their residential energy code is 65.75.
Solar-readiness policies
The city has not passed a policy mandating new developments be solar-ready, but allows solar use in all zones.
EV-readiness policies
In August 2021, City Council approved an Electric Vehicle (EV) Readiness code that requires new commercial and multifamily construction projects to meet current EV charging needs through installation of charging stations and prepare for future demand with “EV Capable” parking spaces.
Low-energy use requirements
The city requires municipal buildings to achieve LEED Gold standards.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
The State of California allows its local jurisdictions to adopt building energy codes more stringent than the mandatory state codes. Title 24 outlines all California building codes. Title 24, Part 6 includes the California Energy Code and the California Building Energy Efficiency Standards (BEES). Title 24, Part 11 includes the California Green Building Code. To learn more about California’s building energy codes, please visit the State Policy Database.
Commercial
Commercial properties must comply with Title 24. The city’s zEPI score for its commercial energy code is 41.
Residential
Residential properties must comply with Title 24. The city’s zEPI score for its residential energy code is 26.
Solar-readiness policies
Oxnard adheres to the residential solar-ready requirements already included in the California Building Standards Code.
EV-readiness policies
The city adheres to the EV-readiness requirements set by the California Building Standards Code.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Electrification policies
California's 2022 Building Standards Code includes electric-ready requirements for residential buildings.
Last Update: September 2023
Utah’s Uniform Building Code (UUBC) for residential and commercial building energy codes is mandatory statewide. The UUBC is based on the 2015 IECC with weakening amendments. While localities may adopt stretch codes, it is a difficult process to do so. To learn more about Utah’s building energy codes, please visit the State Policy Database.
Commercial
Park City adopted the UUBC. The city does not currently advocate for more stringent standards at the state level.
Residential
Park City adopted the UUBC. The city does not currently advocate for more stringent standards at the state level.
Last Updated: January 2017
Overview
The Commonwealth of Pennsylvania requires its local jurisdictions to comply with state-mandated building energy codes. However, in 2018 the state granted Philadelphia a one-time opportunity to adopt its own building energy codes, and so the city adopted the 2018 International Energy Conservation Code (IECC). To learn more about the required building energy codes for the Commonwealth of Pennsylvania please visit the State Policy Database.
Commercial
Commercial properties must comply with the 2018 IECC. The city’s zEPI score for their commercial energy code is 48.
Residential
Residential properties must comply with the 2018 IECC. The city’s zEPI score for their residential energy code is 55.5.
Solar-readiness policies
The city has not passed a policy mandating new developments be solar-ready. However, the city received SolSmart Gold designation in 2018 and allows solar energy use in all zones.
EV-readiness policies
The city has not passed a policy mandating new developments be EV-ready. However, Philadelphia's code requires a certain percentage of parking spots be reserved for alternative fuel vehicles for certain developments. Buildings with a principal use in the public, civic, or institutional, office, retail sales, commercial services, or vehicle and vehicular equipment sales and service use categories with 30 or more parking spaces shall designate at least five percent of the parking spaces for carpool, vanpool parking, and hybrid/alternative fuel vehicles. These preferential parking spaces shall be located closer to the principal building than other parking with the exception of accessible parking.
Low-energy use requirements
Bill No. 080025 requires that new construction for City-owned buildings over 10,000 square feet achieve LEED-Gold certification.
Electrification policies
The city is prohibited by the state from adopting electrification policies
Last Update: September 2023
Overview
The State of Arizona is a home rule state which allows local jurisdictions to set their own building energy codes. The City of Phoenix participated in the ICC voting process for the 2018 International Energy Conservation Code, and adopted the code in June 2018. The city also created the Phoenix Green Construction Code as an alternative compliance path. To learn more about the requirements for building energy codes for the State of Arizona, please visit the State Policy Database.
Commercial
Commercial properties must comply with the 2018 IECC with city amendments or the Phoenix Green Construction Code. The city’s zEPI score for their commercial energy code is 48.75.
Residential
Residential properties must comply with the 2018 IECC for residential construction or the Phoenix Green Construction Code. The city’s zEPI score for their residential energy code is 61.50.
Solar-readiness policies
The city has not passed a policy mandating new developments be solar-ready.
EV-charging readiness and infrastructure policies
The city has not passed a policy mandating new developments be EV-ready, but has created language that is going to the advisory board for adoption in the fall of 2023.
Low-energy use requirements
The City of Phoenix has had energy standards for public buildings in place since 2005. In June 2005, the Phoenix City Council adopted a policy requiring all new city buildings built with 2006 bond funds to at least meet the LEED Certified level. Presently, the City of Phoenix requires LEED Silver certification for all of its own new buildings.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
The Commonwealth of Pennsylvania requires its local jurisdictions to comply with state-mandated building energy codes. Residential construction must comply with the 2018 IECC. Commercial construction must comply with the 2018 IECC and ASHRAE 90.1-2016. To learn more about the required building energy codes for the Commonwealth of Pennsylvania please visit the State Policy Database.
Commercial
Commercial projects comply with the state’s mandated codes, the 2018 IECC and ASHRAE 90.1-2016. Pittsburgh created a working group with the assistance of the Green Building Alliance to improve city codes for Pittsburgh and work with partner cities to advocate for improved energy codes statewide. The city’s zEPI score for their commercial energy code is 48.75.
Residential
Residential projects comply with the state’s mandated code, the 2018 IECC. Pittsburgh created a working group with the assistance of the Green Building Alliance to improve city codes for Pittsburgh and work with partner cities to advocate for improved energy codes statewide. The city’s zEPI score for their residential energy code is 55.92.
Solar-readiness policies
As per the state code, the city is not allowed to mandate new developments be solar-ready. However, the the city allows solar in all zones and can be installed anywhere with an over the counter permit.
EV-readiness policies
As per the state code, the city is not allowed to mandate new developments be EV-ready. Pittsburgh created an EV Task Force consisting of representatives from city departments, Duquense Light Company, institutions, and community members. The Task Force is charged with developing policies and programs that will increase EV penetration, including EV-readiness in new buildings.
Low-energy use requirements
Unless exempted by Section 915.08.D, all construction of new buildings on City-owned property and all Major Renovations of existing buildings on City-owned property must achieve net-zero energy ready building performance.
Electrification policies
The city is prohibited by the state from adopting electrification policies.
Last Update: September 2023
Overview
The State of Oregon requires its local jurisdictions to follow the 2021 Oregon Energy Efficiency Specialty Code (OEESC) and the 2021 Oregon Residential Specialty Code (ORSC), based on ASHRAE 90.1-2019 and the 2018 International Residential Code (IRC), respectively.
Portland advocates for stricter energy codes at the State-level. Additionally, the city is a key member of the ZERO coalition, which has been holding the state Building Codes Division accountable for implementation of the Governor's Executive Order 17-20 specific to residential and commercial building codes. To learn more about the building energy codes for the State of Oregon, please visit the State Policy Database.
Commercial
Commercial properties comply with the 2021 Oregon Energy Efficiency Specialty Code. The city’s zEPI score for their commercial energy code is 48.75.
Residential
Residential properties comply with the 2021 Oregon Residential Specialty Code (ORSC). The city’s zEPI score for their residential energy code is 60.50.
Solar-readiness policies
The Governor of the State of Oregon signed Executive Order NO. 17-20 in 2017 that directs the State Building Codes Division to amend the building code to require all newly constructed buildings in the state to include solar-ready infrastructure.
EV-readiness policies
The City of Portland adopted the EV Ready Code in February 2023. The Electric Vehicle (EV) Ready Code Project is an amendment to Portland Zoning Code (Title 33) to require all new multi-dwelling and mixed use development with five or more units – that include onsite parking – to provide electric vehicle (EV)-ready charging infrastructure.
Low-energy use requirements
Per the Green Building Policy, all new building constructions and major renovations over 50,000 square feet must achieve LEED Gold certification, while all new constructions and major renovations less than 50,000 square feet may achieve LEED Gold certification or Earth Advantage at the Gold level.
Electrification policies
Portland is pre-empted by the state from the regulation of buildings, but is working to advance building performance standards that would drive out fossil fuels in buildings by 2050.
Last Update: September 2023
Overview
The State of Rhode Island requires local jurisdictions to comply with the SBC-8 State Energy Conservation Code. The Conservation Code requires residential and commercial developments adhere to the 2018 International Energy Conservation Code (IECC). In 2018, the state adopted a voluntary stretch code that individual projects and developments may adopt. The state bars cities from adopting the stretch code as its standard building code.
Commercial
Commercial properties must comply with the State Energy Conservation Code. The city’s zEPI score for their commercial energy code is 49.50.
Residential
Residential properties must comply with the State Energy Conservation Code. The city’s zEPI score for their residential energy code is 65.15.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready, but allows solar energy use in all zones.
EV-readiness policies
The city has not passed an ordinance mandating new construction be EV-ready.
Low-energy use requirements
Providence requires new municipal buildings to achieve LEED standards. All Public School new and major renovation projects must adhere to the Collaborative for High Performance Schools standard and achieve certification.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
Utah’s Uniform Building Code (UUBC) for residential and commercial building energy codes is mandatory statewide. The UUBC is based on the 2018 IECC with weakening amendments. While localities may adopt stretch codes, it is a difficult process to do so. To learn more about Utah’s building energy codes, please visit the State Policy Database.
Commercial
Commercial construction in Provo complies with the Utah Codes. The city’s zEPI score for its commercial energy code of 53.7. We could not find information about any city-led efforts to advocate stricter state energy codes.
Residential
Residential construction in Provo complies with the Utah Codes. The city’s zEPI score for its residential energy code is 65.5. We could not find information about any city-led efforts to advocate stricter state energy codes.
Solar-readiness policies
The city has not adopted a policy mandating new construction be solar-ready.
EV-charging readiness and infrastructure policies
The city has not adopted a policy mandating new construction be EV-ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings
Last Updated: October 2021
Overview
The State of North Carolina requires local jurisdictions to comply with the state-mandated building energy codes. All buildings must comply with the 2018 North Carolina Energy Conservation Code, which is less stringent than the 2015 International Energy Conservation Code (IECC) and the ASHRAE 90.1-2007. The city does not advocate for more stringent state energy codes. To learn more about the building codes and requirements for the State of North Carolina, please visit the State Policy Database.
Commercial
Commercial construction in Raleigh complies with the North Carolina Codes. The city’s zEPI score for its commercial energy code is 54.75.
Residential
Residential construction in Raleigh complies with the North Carolina Codes. The city’s zEPI score for its residential energy code is 64.79.
Solar-readiness
North Carolina prohibits the city from passing an ordinance mandating new construction be solar-ready.
EV-charging readiness and infrastructure policies
North Carolina prohibits the city from passing an ordinance mandating new construction be EV-ready.
Low-energy use requirements
Raleigh established Energy Efficient Building Standards that require LEED Silver certification for all new city construction and additions encompassing 10,000 gross square feet or more.
Electrification policies
North Carolina prohibits the city from adopting electrification policies.
Last Update: September 2023
Overview
The State of Nevada allows local jurisdictions to adopt building energy codes at the municipal level. Nevada has adopted the 2021 International Energy Conservation Code (IECC) with state amendments for residential and commercial buildings. Reno is still only mandating the 2018 IECC for residential and commercial buildings, but is planning to adopt the 2024 IECC. To learn more about the building codes and requirements for the State of Nevada, please visit the State Policy Database.
Commercial
Commercial properties must comply with the 2018 IECC. The city’s zEPI score for its commercial energy code is 51.75.
Residential
Residential properties must comply with the 2018 IECC. The city’s zEPI score for its residential energy code is 56.25.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready.
EV-readiness policies
We could not find information on whether the city has adopted policies requiring buildings to be EV-ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
The Commonwealth of Virginia requires local jurisdictions to comply with the 2021 Virginia Uniform Statewide Building Code (USBC). The state recently updated the code to reference the 2018 International Energy Conservation Code (IECC) and ASHRAE 90.1-2016. Members of the Sustainability Office voted in the 2021 IECC code adoption process to secure more climate friendly and energy efficient code provisions. To learn more, please see the Virginia page of the State Policy Database.
Commercial
Commercial properties comply with the USBC. The city’s zEPI score for their commercial energy code is 51.75. The city is a member of the Virginia Energy Efficiency Council (VAEEC) which advocates for higher energy standards.
Residential
Residential properties comply with the USBC. The city’s zEPI score for their residential energy code is 63.75. The city is a member of the Virginia Energy Efficiency Council (VAEEC) which advocates for higher energy standards.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready. The city is a SolSmart Silver community and allows solar use in all zones.
EV-readiness policies
The city has not passed an ordinance mandating new construction be EV-ready.
Electrification policies
The city is prohibited by the state from adopting electrification policies.
Last Update: September 2023
Overview
The State of California allows its local jurisdictions to adopt building energy codes that are more stringent than the mandatory state codes. Title 24 outlines all California building codes. Title 24, Part 6 includes the California Energy Code and the California Building Energy Efficiency Standards (BEES). Title 24, Part 11 includes the California Green Building Code. The 2022 codes exceed the 2021 IECC standards and ASHRAE/IESNA 90.1-2019. To learn more about California’s building energy codes, please visit the State Policy Database.
Commercial
Commercial properties comply with the 2022 version of the California Building Standards Code, Title 24 part 1 and 2, the 2022 California Building Code. The city’s zEPI score for their commercial energy code is 41.
Residential
Residential development must comply with the 2022 version of the California Building Standards Code, Title 24 Part 2.5, the 2022 California Residential Code, or Parts 1 and 2, the 2022 California Building Code. The city’s zEPI score for their residential energy code is 26.
Solar-readiness policies
Riverside adheres to the solar-ready requirements already included in the 2022 California Building Standards Code.
EV-charging readiness policies
Riverside adheres to the EV-ready requirements already included in the 2022 California Building Standards Code.
Electrification policies
Riverside has adopted a building electrification ordinance, as a local amendment enforced under Section 14.26 of the Riverside Municipal Code, requiring all newly constructed, low-rise buildings in the city to be designed as all-electric structures.
Last Update: September 2023
Overview
New York State allows local jurisdictions to adopt building energy codes that are more stringent than the state code. New York requires residential and commercial buildings to comply with the 2020 New York State Code. Rochester has not adopted a stretch code. To learn more about New York’s building energy codes, please visit the State Policy Database.
Commercial
Commercial properties must comply with 2020 New York State Code. The city’s zEPI score for their commercial energy code is 51.0.
Residential
Residential properties must comply with the 2020 New York State Code. The city’s zEPI score for their residential energy code is 57.42.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready, but allows solar use in all zones.
EV-charging readiness policies
The city has not passed an ordinance mandating new construction be EV-ready.
Electrification policies
New York State's All-Electric Building Law (Senate Bill S6843C) require most new buildings to be all-electric starting in 2026.
Last Update: January 2024
Overview
The State of California allows its local jurisdictions to adopt building energy codes that are more stringent than the mandatory state codes. Title 24 outlines all California building codes. Title 24, Part 6 includes the California Energy Code and the California Building Energy Efficiency Standards (BEES). Title 24, Part 11 includes the California Green Building Code. Sacramento currently enforces the 2022 state building energy codes, which exceed the 2021 IECC standards and ASHRAE/IESNA 90.1-2019. The city also recently passed an electrification ordinance reach code. To learn more about California’s building energy codes, please visit the State Policy Database.
Commercial
Commercial properties must currently comply with Title 24 and the city's electrification ordinance. The city’s zEPI score for their commercial energy code is 41.
Residential
Residential properties must currently comply with Title 24 and the city's electrification ordinance. The city’s zEPI score for their residential energy code is 26.
Solar-readiness policies
Sacramento adheres to the residential solar-ready requirements already included in the California Building Standards Code.
EV-charging readiness policies
Sacramento adheres to the residential solar-ready requirements included in the California Building Standards Code, which also mandates EV-readiness in residential and nonresidential buildings.
Low-energy use requirements
In 2004, the City Council adopted a resolution establishing goals for all new and remodeled City facilities to meet a minimum LEED Silver standard. The City’s 2035 General Plan Land Use Policy LU 8.1.5 reiterates the City’s ongoing commitment that new or renovated City-owned buildings are energy efficient and meet, as appropriate, LEED Silver or equivalent standards.
Electrification policies
The city passed two electrification ordinance. New low-rise buildings (<3 stories) with permit applications starting Jan 1, 2023 must be all-electric. On Jan 1, 2026, this extends to new buildings over 3 stories. The second ordinance requires all existing buildings to be fully electric by 2045.
Last Update: September 2023
Overview
The State of Minnesota currently requires local jurisdictions to comply with the Minnesota Energy Code. The state based the Minnesota Energy Code on the 2012 International Energy Conservation Code (IECC) for residential buildings and the 2018 IECC for commercial buildings. St. Paul does not have the authority to set its own building energy code, but actively advocates to the state for more stringent codes. Additionally, the state allows St. Paul to set stricter building standards if the development is receiving public funding. To learn more about the Minnesota building energy code requirements, please visit the State Policy Database.
Commercial
Commercial properties must comply with the Minnesota Energy Code. The city’s zEPI score for their residential energy code is 52.5. St. Paul actively advocates to the state to adopt more stringent energy codes.
Residential
Residential properties must comply with the Minnesota Energy Code. The city’s zEPI score for their residential energy code is 55.45. St. Paul actively advocates to the state to adopt more stringent energy codes.
Solar--readiness policies
Saint Paul, like all cities in Minnesota, must comply with the state building code, which means that the City is not allowed to mandate residential new construction to be solar-ready.
Saint Paul is a SolSmart Gold designee. As such, the city has implemented programs and practices to streamline these procedures to encourage solar development and allows solar energy use in all zones.
EV-charging readiness policies
Saint Paul, like all cities in Minnesota, must comply with the state building code, which means that the City is not allowed to mandate residential new construction to be EV-ready.
Low-energy use requirements
The Saint Paul Sustainable Building Ordinance, which applies city buildings as well as private development receiving more than $200,000 in public investment, requires all new construction and major renovations to be certified either LEED Silver, MN B3, Enterprise Green Communities, or Green Star Silver. Regardless of what standard is followed, each building must comply with the Minnesota SB 2030 energy standard. SB 2030 is a progressive energy standard that ratchets down 10% every five years until 2030 when it will reach net zero. The Policy applies to all building types.
Electrification policies
Cities may not deviate from the Minnesota Building Code or Energy Code and, therefore, cannot adopt building emissions standards, all-electric readiness provisions, or all-electric requirements for new construction.
Last Update: September 2023
Overview
Utah’s Uniform Building Code (UUBC) for residential and commercial building energy codes is mandatory statewide. The UUBC is based on the 2018 IECC with weakening amendments. While localities may adopt stretch codes, it is a difficult process to do so. Salt Lake City participated in the ICC voting process for the 2018 IECC. To learn more about Utah’s building energy codes, please visit the State Policy Database.
Commercial
Commercial construction in Salt Lake City complies with the Utah Codes. Salt Lake City actively lobbies the state to increase the stringency of building energy codes. The city’s zEPI score for their commercial energy code of 51.75.
Residential
Residential construction in Salt Lake City complies with the Utah Codes. The city’s zEPI score for their residential energy code is 68.2. Salt Lake City actively lobbies the state to increase the stringency of building energy codes.
Solar-readiness policies
The city has not adopted solar readiness policies or requirements.
EV-charging readiness policies
Chapter 21A.44 of the city code includes a provision requiring developers to install an electric vehicle charging station on one out of twenty-five parking spaces.
Low-energy use requirements
A January 2006 executive order requires municipal buildings be built or renovated to LEED-Gold standards. In accordance with a January 2013 executive order, all new and majorly renovated municipal government buildings over 10,000 square feet are to be evaluated for the potential to meet net-zero energy emissions standards. If feasible and cost-effective, the building will be designed and built to that level of energy efficiency.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: September 2023
Overview
The State of Texas allows its local jurisdictions to adopt and amend building energy codes that are at least as stringent as the Texas Building Energy Code. The minimum state standard for single-family residential construction must comply with the 2015 International Residential Code (IRC). All other residential and commercial building construction must comply with the 2015 International Energy Conservation Code (IECC). San Antonio has adopted the 2021 IECC, effective February 2023. State-funded building construction must comply with ASHRAE 90.1-2013. To learn more about the building energy code requirements for the State of Texas, please visit the State Policy Database.
Commercial
Commercial properties in San Antonio must comply with the 2021 IECC. The city’s zEPI score for their commercial energy code is 46.5.
Residential
Residential properties in San Antonio must comply with the 2021 IECC. The city’s zEPI score for their residential energy code is 55.5.
Solar-readiness policies
The city adheres to the 2021 IECC, which requires that one- and two-family dwelling and townhouses be solar-ready.
EV-charging readiness policies
The city adheres to the 2021 IECC, which requires EV-readiness in single-family, multifamily, and nonresidential buildings.
Electrification policies
The State of Texas prevents municipalities from adopting all-electric codes.
Last Updated: September 2023
Overview
The State of California allows its local jurisdictions to adopt building energy codes more stringent than the mandatory state codes. Title 24 outlines all California building codes. Title 24, Part 6 includes the California Energy Code and the California Building Energy Efficiency Standards (BEES). Title 24, Part 11 includes the California Green Building Code. The 2022 codes exceed the 2021 IECC standards and ASHRAE/IESNA 90.1-2018. To learn more about California’s building energy codes, please visit the State Policy Database.
Commercial
Commercial properties comply with the 2022 California Building Standards Code. The city’s zEPI score for their commercial energy code is 41.
Residential
Residential properties comply with the 2022 California Building Standards Code. The city’s zEPI score for their residential energy code is 26.
Solar-readiness policies
San Diego adheres to the solar-ready requirements already included in the California Building Standards Code. The city is currently developing a reach code that will potentially include requirements that go beyond the state's solar-ready requirements.
EV-charging readiness policies
San Diego adheres to the EV-ready requirements already included in the California Building Standards Code. The city is currently developing a reach code that will potentially include requirements that go beyond the state's EV-ready requirements.
Low-energy use requirements
San Diego requires new municipal buildings and all new buildings and major renovations over 5,000 square feet to achieve LEED Silver certification and be constructed to 15% more energy efficient than the State of California's building code.
Electrification policies
California's 2022 Building Standards Code includes electric-ready requirements for residential buildings. Moreover, the city is currently developing an energy each code that would require all new residential and commercial development to be all-electric, prohibiting the use of natural gas in new buildings.
Last Updated: September 2023
Overview
The State of California allows its local jurisdictions to adopt building energy codes that are more stringent than the mandatory state codes. Title 24 outlines all California building codes. Title 24, Part 6 includes the California Energy Code and the California Building Energy Efficiency Standards (BEES). Title 24, Part 11 includes the California Green Building Code. The 2022 codes exceed the 2021 IECC standards and ASHRAE/IESNA 90.1-2019. To learn more about California’s building energy codes, please visit the State Policy Database.
Commercial
San Francisco amended the California Green Building Code to create the more stringent San Francisco Green Building Code for commercial buildings.
In 2020, San Francisco adopted an ordinance requiring: (A) All-Electric commercial and multifamily to meet the California Energy Code (e.g. no change from state code), and (B) mixed-fuel commercial and multifamily must be designed and constructed to use 10% less energy than allowed by California Energy Code. See the CEC's list of approved Local Ordinances Exceeding the 2022 Energy Code. The city’s zEPI score for their commercial energy code is 41.
Residential
San Francisco amended the California Green Building Code to create the more stringent San Francisco Green Building Code for residential buildings.
Similar to RESNET HERS and ICC Energy Rating Index, the California Energy Design Rating compares the proposed building to a circa-2006 reference home. California's Energy Efficiency Standards require a "Total Energy Design Rating" inclusive of mandatory solar PV, and an "Efficiency Energy Design Rating". In California Energy Commission compliance Climate Zone 3 (San Francisco), Title 24 requires a Total EDR of 24 or less. San Francisco has adopted a local ordinance which allows all-electric new residential to comply with a Total EDR of 24 and a stricter efficiency requirement for mixed-fuel homes (e.g. buildings that install natural gas). Mixed-fuel new residential construction must achieve a Total EDR of 14. See the CEC's list of approved Local Ordinances Exceeding the 2022 Energy Code. The city’s zEPI score for their residential energy code is 26.
Solar-readiness policies
From 2019-2022, California Energy Standards required installation of solar on residential new construction of 3 floors or less (and San Francisco maintained the previously adopted code mandating PV on multifamily of 4-10 floors.)
From January 2023 onward, the 2022 California Energy Standards require mandatory installation of solar and battery storage on multifamily, and prescriptively require solar PV installation, plus wiring for future installation of batteries, in single family.
EV-charging readiness policies
For new construction and major renovations, San Francisco requires developers install EV-ready infrastructure into 20% of parking spaces, and provide sufficient electrical service to be able to expand charging services to 100% of spaces. For existing commercial parking, San Francisco Environment Code Chapter 30 requires EV charging stations to be installed in a minimum of 10% of spaces in any commercial parking lot with 100 or more spaces by the end of 2023. There are more than 300 facilities in San Francisco subject to this requirement.
Low-energy use requirements
Since 2008, San Francisco has required residential and commercial new construction to achieve GreenPoint Rated v7.0 and LEED Silver (multifamily high-rises)/LEED Gold respectively.
In 2020, San Francisco adopted an ordinance requiring all-electric commercial and multifamily buildings to meet the California Energy Code (e.g. no change from state code). Mixed-fuel commercial and multifamily must be designed and constructed to use 10% less energy than allowed by the California Energy Code.
Electrification policies
The (2020) All-Electric New Construction Ordinance amended the San Francisco Building Code to require all new construction be all-electric on the basis of health and safety.
Last Updated: August 2023
Overview
The State of California allows its local jurisdictions to adopt building energy codes that are more stringent than the mandatory state codes. Title 24 outlines all California building codes. Title 24, Part 6 includes the California Energy Code and the California Building Energy Efficiency Standards (BEES). Title 24, Part 11 includes the California Green Building Code. The 2022 codes exceed the 2021 IECC standards and ASHRAE/IESNA 90.1-2018. To learn more about California’s building energy codes, please visit the State Policy Database.
San José's Reach Code was updated in October 2022 to align with the most recent state building code cycle and uses the the EDR compliance pathway (see explanation below under Residential). Under San José’s Reach Code, all new residential construction for single-family, low-rise multifamily, and detached accessory dwelling units (ADUs) must meet all-electric efficiency requirements of the 2022 California Building Energy Code (Base Code), or mixed-fuel must meet a minimum 10 point EDR reduction from the Base Code with electrification readiness. A hardship exemption may be provided for permanent supportive housing and housing built for 30% local area median income.
Commercial
Commercial buildings must meet the requirements of San Jose's reach code and natural gas ban. The city’s zEPI score for their commercial energy code is 41.
Residential
Residential buildings must meet the requirements of San José's reach code and natural gas ban. The city’s zEPI score for their residential energy code is 26.
In 2019, California energy codes (Title 24) adopted the Energy Design Rating (EDR) compliance pathway. EDR is similar to ERI in that the reference home is a score of 100 with every percentage of energy reduced representing a score reduction of one point; for more information please visit RESNET.
Solar-readiness policies
San José adheres to the 2022 California Energy Efficiency Standards for Residential Buildings, which requires solar photovoltaic systems for single-family, multifamily, and nonresidential buildings. Additionally, San José’s Reach Code requires solar readiness for all building types, covering any that may not be covered by the 2022 Standards.
EV-charging readiness policies
San José's Reach Code also includes EV requirements that apply to new residential, multifamily, and commercial building construction starting January 1, 2020. New single-family and ADUs must provide 1 EV Ready space per dwelling. New low-rise and high-rise multi-family residential must provide 10% Electric Vehicle Supply Equipment (EVSE), 20% EV Ready, and 70% EV Capable of all parking spaces required by Code (spaces). Hotel/Motel must provide 10% EVSE, and 50% EV Capable spaces. All new non-residential construction must provide 10% EVSE and 40% EV Capable spaces.
Low-energy use requirements
Council Policy 6-32 requires commercial projects of more than 25,000 square feet but less than 75 feet in height to be LEED Silver certified. Residential developments less than 10 units are required to complete a GreenPoint or LEED Checklist. Residential developments greater than 10 units are required to be GreenPoint Rated at 50 points or be LEED Certified.
Electrification policies
The city prohibits natural gas in commercial and residential construction. The natural gas infrastructure prohibition overrides the mixed-fuel efficiency requirements for single-family, ADUs, and low-rise multi-family buildings. The ordinance allows limited exemptions for hospitals, attached ADUs, distributed energy resources (this exemption is set to sunset on December 31, 2024 but will be reconsidered by Council before the end of 2023), and hardship.
Last Update: August 2023
Overview
Puerto Rico allows its local jurisdictions to adopt building energy codes other than the state standards. Puerto Rico adopted the 2018 International Energy Conservation Code (IECC) with amendments.
Commercial
San Juan enforces the state energy code. New Buildings Institute is unable to produce a zEPI score for San Juan because there are no available analyses comparing the city’s code to model energy codes.
Residential
San Juan enforces the state energy code. New Buildings Institute is unable to produce a zEPI score for San Juan because there are no available analyses comparing the city’s code to model energy codes.
Solar-readiness policies
The city has not adopted a policy mandating new construction be solar-ready.
EV-charging readiness and infrastructure policies
The city has not adopted a policy mandating new construction be EV-ready.
Last updated: July 2021
Overview
The State of Washington requires all local jurisdictions to comply with the state mandated residential building energy codes but permits local jurisdictions to have more stringent commercial codes. The 2021 Washington State Energy Code for residential buildings is based on the 2021 IECC. The Seattle Energy Code for commercial buildings incorporates provisions that significantly reduce building energy use and carbon emissions, resulting in approximately 20% better efficiency than ASHRAE 90.1. The City of Seattle has actively advocated for local authority to adopt its own residential stretch code.
In the most recent 2021 legislative session, HB 1084 included a provision to grant this authority. The City of Seattle provided written and in-person testimony to the legislature and coordinated on bill language with the bill sponsor. To learn more about the building energy codes required in the State of Washington, please visit the State Policy Database.
Commercial
Commercial properties comply with the Seattle Energy Code. At this time, we are unable to produce a zEPI score for Seattle because there are no available analyses comparing the city’s code to model energy codes.
Residential
Residential properties comply with the 2021 Washington State Energy Code. The city’s zEPI score for their residential energy code is 53.25. Seattle actively advocated for the passage of HB 2931, which would have created a tiered residential energy code. The city conducted legislative outreach and partnered with environmental organizations, industry groups, and other cities as part of its efforts.
Solar-readiness policies
The city requires commercial and multifamily buildings to install renewable energy or be solar-ready. As part of this policy, if solar is not feasible, the building must achieve energy efficiency savings more stringent than the current code.
EV-charging readiness policies
The City of Seattle adopted an ordinance in Spring of 2019 that requires all new construction to include EV readiness. The number of EV enabled parking spots are dependent on total number of parking spots built. Off-street parking rules also apply. Additionally, the City proactively lobbied for WA state House Bill 1257 which requires EV readiness in new construction for all on-site parking. The bill passed the legislature.
Low-energy use requirements
The Sustainable Buildings and Sites Policy for municipal facilities requires new construction and major renovations 5,000 square feet or great to meet LEED Gold certification, as well as key performance requirements for energy and water efficiency, waste diversion and bicycle facilities.
Electrification policies
Seattle's commercial energy code requires all-electric space heating in all commercial buildings, and electric water heating in hotels and multifamily buildings. It also requires electric-readiness for cooking end uses.
Last Update: August 2023
Overview
The State of Washington requires all local jurisdictions to comply with the state mandated residential building energy codes but permits local jurisdictions to have more stringent commercial codes. The 2021 Washington State Energy Code for residential buildings is based on the 2021 IECC. To learn more about the building energy codes required in the State of Washington, please visit the State Policy Database.
Commercial
Commercial properties comply with the 2021 Washington State Energy Code. The city’s zEPI score for their commercial energy code is 48.
Residential
Residential properties comply with the 2021 Washington State Energy Code. The city’s zEPI score for their residential energy code is 53.25.
Solar-readiness policies
Spokane has not adopted solar-readiness ordinances.
EV-charging readiness policies
Spokane has not adopted EV-ready ordinances.
Low-energy use requirements
The city requires new construction and major renovations of city-owned buildings 5,000 square feet or greater to meet LEED Silver certification.
Electrification policies
The 2021 Washington State Code requires all-electric space and water heating in new commercial and multifamily buildings, with exceptions for a few specific end uses.
Last Updated: August 2023
Overview
Massachusetts law requires statewide adoption of each new International Energy Conservation Code edition within one year of its publication. Massachusetts adopted the 2018 IECC for commercial and residential buildings. Massachusetts allows its local jurisdictions to upgrade their energy codes with a state-determined stretch code. To learn more about the building energy codes required in the State of Washington, please visit the State Policy Database.
Commercial
Springfield implements the State Building Code. The city’s zEPI score their commercial energy code is 46.5.
Residential
Springfield implements the State Building Code. The city’s zEPI score their commercial energy code is 51.68.
Solar-readiness policies
Massachusetts's Board of Building Regulations and Standards adopted solar-ready requirements for all new residential and commercial buildings 5 stories and under.
EV-charging readiness policies
Massachusetts includes EV readiness requirements in its mandatory commercial building code.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Electrification policies
We could not find information on whether the city has adopted any electrification policies.
Last Update: August 2023
Overview
The State of Missouri allows local jurisdictions to adopt building energy codes more stringent than the state’s code. In 2018, St. Louis adopted the 2018 International Energy Conservation Code (IECC) by ordinance, along with several other of the 2018 ICC codes. To learn more about Missouri’s building energy codes, please visit the State Policy Database.
Commercial
Commercial properties must comply with the 2018 IECC. The city’s zEPI score for their commercial energy code is 47.25.
Residential
Residential properties must comply with the 2018 IECC. The city’s zEPI score for their residential energy code is 55.5.
Solar-readiness policies
St. Louis adopted a solar-ready ordinance for commercial and multifamily buildings in January 2020.
EV-charging readiness policies
Saint Louis Ordinance 71285 sets EV-ready requirements for commercial and multifamily buildings.
Low-energy use requirements
St. Louis Ordinance 67414 requires new municipal buildings achieve LEED Silver certification.
Electrification
We could not find information on whether the city has adopted any electrification policies.
Last Update: August 2023
State of Florida law requires that residential and commercial buildings comply with the 7th Edition Florida Building Code, Energy Conservation. The 7th Edition Florida Building Code, Energy Conservation is based on the 2018 IECC with amendments. The state bars cities from adoption codes more stringent than the state codes. The city advocates for more stringent state energy codes. To learn more about Florida’s building energy codes, please visit the State Policy Database.
Commercial
Commercial construction must comply with the Florida Building Code. The city’s zEPI score for its commercial energy code is 52.5.
Residential
Residential construction must comply with the Florida Building Code. The city’s zEPI score for its residential energy code is 65.75.
Solar-readiness policies
We could not find information on whether the city has adopted a solar-ready policy.
EV-charging readiness policies
The city is working to pass a city-wide EV code for all new construction that includes: commercial, multifamily residential and single family residential.
Low-energy use requirements
St. Petersburg requires new or substantial modification of municipal buildings 5,000 square feet or bigger to achieve LEED Gold or higher. City infrastructure projects costing $2 million or more must be certified by a third party to achieve Envision Gold or higher.
Electrification
We could not find information on whether the city has adopted any electrification policies.
Last Update: August 2023
Overview
The State of California allows its local jurisdictions to adopt building energy codes more stringent than the mandatory state codes. Title 24 outlines all California building codes. Title 24, Part 6 includes the California Energy Code and the California Building Energy Efficiency Standards (BEES). Title 24, Part 11 includes the California Green Building Code. Stockton has not adopted a stretch code and enforces state building energy codes. The 2019 codes exceed the 2015 IECC standards and ASHRAE/IESNA 90.1-2016. To learn more about California’s building energy codes, please visit the State Policy Database.
Commercial
Commercial properties must comply with Title 24. The city’s zEPI score for its commercial energy code is 51.7.
Residential
Residential properties must comply with Title 24. The city’s zEPI score for its residential energy code is 59.6.
Solar-readiness policies
Stockton adheres to the residential solar-ready requirements already included in the California Building Standards Code.
EV-charging readiness and infrastructure policies
The city does not appear to have adopted an EV-ready requirement.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Last Updated: October 2021
Overview
New York State allows local jurisdictions to adopt building energy codes that are more stringent than the state code. Syracuse requires residential and commercial buildings to comply with the 2015 New York State Energy Conservation Construction Code, which references the 2015 International Energy Conservation Code. Syracuse has not adopted a stretch code. To learn more about New York's building energy codes, please visit the State Policy Database.
Commercial
Commercial properties must comply with the 2018 IECC. The city’s zEPI score for its commercial energy code is 56.5.
Residential
Residential properties must comply with the 2018 IECC. The city’s zEPI score for its residential energy code is 53.4.
Solar- and EV-ready
The city has not passed an ordinance mandating new construction be solar-ready.
EV-charging readiness and infrastructure policies
The city has not passed an ordinance mandating new construction be EV-ready.
Last Update: July 2021
Overview
State of Florida law requires that residential and commercial buildings comply with the 7th Edition Florida Building Code, Energy Conservation. The 7th Edition Florida Building Code, Energy Conservation is based on the 2018 IECC with amendments. The state bars cities from adoption codes more stringent than the state codes. Tampa has not yet begun advocating for increased stringency in the state building energy codes. To learn more about Florida’s building energy codes, please visit the State Policy Database.
Commercial
Commercial construction in Tampa complies with the Florida codes. The city’s zEPI score for its commercial energy code is 52.5.
Residential
Residential construction in Tampa complies with the Florida codes. The city’s zEPI score for its residential energy code is 65.75.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready.
EV-charging readiness policies
We could not find information on whether the city has adopted policies requiring buildings to be EV-ready.
Low-energy use requirements
Tampa requires new municipal buildings to achieve LEED Silver certification.
Electrification
We could not find information on whether the city has adopted any electrification policies.
Last Update: August 2023
Overview
The State of Ohio has set mandatory building energy codes statewide. The Ohio Board of Building Standards adopted the 2012 International Energy Conservation Code (IECC) and ASHRAE 90.1-2010 with amendments for commercial buildings. Ohio's energy code for residential buildings is based on the 2018 IECC. To learn more about Ohio’s building energy code requirements, please visit the State Policy Database.
Commercial
Commercial buildings in Toledo comply with the state-mandated codes, the 2012 IECC with amendments. The city’s zEPI score for its commercial energy code is 63.
Residential
Residential buildings in Toledo comply with the state-mandated codes, the 2018 IECC with amendments. The city’s zEPI score for its residential energy code is 60.55.
Solar-readiness policies
We could not find information on whether the city has adopted solar-readiness policies or requirements.
EV-charging readiness policies
We could not find information on whether the city has adopted policies requiring buildings to be EV-ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Electrification
We could not find information on whether the city has adopted any electrification policies.
Last updated: August 2023
Overview
The State of Arizona is a home rule state which allows local jurisdictions to set their own building energy codes. Tucson adopted the 2018 International Energy Conservation Code (IECC) with amendments. To learn more about the requirements for building energy codes for the State of Arizona, please visit the State Policy Database.
Commercial
Commercial projects must comply with the 2018 IECC with city amendments. The city’s zEPI score for its commercial energy code is 48.75
Residential
Residential projects must comply with the 2018 IECC with city amendments. The city’s zEPI score for its residential energy code is 61.5.
Solar-readiness policies
Tucson adopted a solar-ready ordinance for single- and two-family buildings in 2008. The ordinance requires buildings to install solar-ready electric and water heating infrastructure in new homes.
EV-charging readiness policies
The city has not adopted an EV-ready ordinance.
Low-energy use requirements
Tucson requires new municipal buildings to achieve LEED Silver certification.
Electrification
We could not find information on whether the city has adopted any electrification policies.
Last Update: August 2023
The State of Oklahoma allows its local jurisdictions to adopt building energy codes other than the state standards. Oklahoma adopted the 2015 International Residential Code (IRC) with amendments that require cities to comply with the 2009 International Energy Conservation Code (IECC). Oklahoma adopted the 2015 International Building Code with amendments that require cities to comply with the 2006 IECC. To learn more, please visit the Oklahoma page on the State Policy Database.
Commercial
Commercial properties must comply with the 2006 IECC. The city’s zEPI score for their commercial energy code is 74.5.
Residential
Residential properties must comply with the 2015 IRC. The city’s zEPI score for their residential energy code is 65.6.
Solar-readiness policies
We could not find information on whether the city has adopted solar-ready ordinances.
EV-charging readiness and infrastructure policies
We could not find information on whether the city has adopted EV-ready ordinances.
Last Update: July 2021
Overview
The State of Virginia requires its local jurisdictions to follow the 2015 Virginia Uniform Statewide Building Code (USBC) for residential and commercial construction. The USBC references the 2015 IECC and 2015 IRC. To learn more, please see the Virginia page of the State Policy Database.
Commercial
Commercial buildings must meet 2015 IECC standards. The city’s zEPI score for its commercial energy code is 54.4. The city is a member of the Virginia Energy Efficiency Council (VAEEC) and advocates for higher energy standards through the organization.
Residential
Residential buildings must comply with the 2015 IRC. The city’s zEPI score for its residential energy code is 56.7. The city is a member of the Virginia Energy Efficiency Council (VAEEC) and advocates for higher energy standards through the organization.
Solar-readiness policies
The city has not passed an ordinance mandating new construction be solar-ready.
EV-charging readiness and infrastructure policies
The city has not passed an ordinance mandating new construction be EV-ready
Last Updated: July 2021
Overview
Washington, D.C.’s energy codes are mandatory across the District. Residential and commercial construction must comply with the 2017 D.C. Construction Code. The D.C. Construction Code includes the Energy Conservation Code which is more stringent than the 2015 IECC and ASHRAE 90.1-2013. The Construction Code also includes the Green Construction Code which is based on the 2012 International Green Construction Code. The next update to the codes was initiated in February 2022, with a goal of enacting them in early 2024. To learn more about the District of Columbia’s required energy codes, please visit the State Policy Database.
Commercial
Commercial properties comply with the 2017 D.C. Construction Code, which consist of the 2015 International Code Council (ICC) family of model codes, the 2014 National Electrical Code, and 2013 ASHRAE 90.1, as amended by the District of Columbia Municipal Regulations (DCMR) Title 12, Sections A through M. This includes Appendix Z, a voluntary net-zero energy compliance pathway. To comply with Appendix Z, commercial projects must demonstrate a zEPI score of 30 or lower. The city’s zEPI score for their commercial energy code is 50.25.
Residential
Residential buildings comply with the 2017 D.C. Construction Code. The city’s zEPI score for their residential energy code is 62.4.
Solar-readiness policies
The 2017 DC Construction Codes include a solar-ready requirement for new commercial developments and major alterations or additions.
EV-charging readiness policies
The Electric Vehicle Readiness Amendment Act of 2019 was signed in 2021 and will require 20% of parking spaces in newly constructed or substantially renovated commercial or multi-unit buildings include EV-ready infrastructure. The Green Construction Code also includes a compliance path with an elective encouraging installation of EV charging infrastructure.
Low-energy use requirements
The Green Construction Code applies to all commercial projects 10,000 square feet and larger, and all residential projects 4 stories and higher and 10,000 square feet or larger. The Green Building Act requires that a commercial building over 50,000 square feet must achieve LEED at the Certified level. If a commercial or residential building has received at least 15% of its funding from public sources (broadly defined to include ground leases, TIF districts, etc.) they must achieve Green Communities Certification (residential), LEED at the Silver level (nonresidential), or LEED at the Gold level (Schools). New municipal buildings must achieve LEED Gold or ENERGY STAR 75+ standards.
Electrification
The Building Code Amendment Act of 2022 (DC B24-0420) mandates a net-zero energy and all-electric energy code be adopted by the District by December 31, 2026.
Last update: August 2023
Overview
The State of Kansas is a home-ruled state, and there are no statewide building energy codes. No jurisdiction is required to adopt building codes, but they may adopt the applicable 2006 International Energy Conservation Code (IECC) standards. To learn more about Kansas’s building energy codes, please visit the State Policy Database.
Commercial
The City of Wichita has adopted the 2018 International Building Code with local amendments that eliminate the energy code requirements. NBI was unable to calculate a zEPI score because the city does not enforce any energy code requirements.
Residential
The City of Wichita has adopted the 2018 International Building Code with local amendments that eliminate the energy code requirements. NBI was unable to calculate a zEPI score because the city does not enforce any energy code requirements.
Solar-readiness policies
We could not find information on whether the city has adopted solar ordinances.
EV-charging readiness and infrastructure policies
We could not find information on whether the city has adopted policies requiring buildings to include EV-charging infrastructure or be EV-ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Last updated: June 2021
Overview
The State of North Carolina requires local jurisdictions to comply with the state mandated building energy codes. All buildings must comply with the 2018 North Carolina Energy Conservation Code, which is less stringent than the 2015 International Energy Conservation Code (IECC) . To learn more about the building codes and requirements for the State of North Carolina, please visit the State Policy Database.
Commercial
Commercial construction in Winston-Salem complies with the North Carolina Energy Conservation Code. The city’s zEPI score for their commercial energy code is 57.6. Charlotte has not yet begun advocating for increased stringency in commercial building energy codes.
Residential
Residential construction in Charlotte complies with the North Carolina Energy Conservation Code. The city’s zEPI score for their residential energy code is 62.9. Charlotte has not yet begun advocating for increased stringency in residential building energy codes.
Solar-readiness policies
We could not find information on whether the city has adopted solar-ordinances
EV-charging readiness and infrastructure policies
We could not find information on whether the city has adopted policies requiring buildings to include EV-charging infrastructure or be EV-ready.
Low-energy use requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Last updated: June 2021
Overview
The State of Massachusetts requires all buildings to be consistent with 2018 International Energy Conservation Code (IECC) but grants municipalities the authority to adopt a state-determined stretch code. To learn more about Massachusetts’s required energy codes, please visit the State Policy Database.
Commercial
Commercial properties must comply with the Massachusettes Building Energy Code. The city’s zEPI score for their commercial energy code is 44.2.
Residential
Residential properties must comply with the 2018 IECC. The city’s zEPI score for their residential energy code is 48.9.
Solar-readiness policies
The Massachusett's Board of Building Regulations and Standards adopted solar-ready requirements for all new residential and commercial buildings five stories and under.
EV-charging readiness and infrastructure policies
The city has not adopted policies requiring buildings to include EV-charging infrastructure or be EV-ready.
Low-energy Use Requirements
We could not find information on whether the city sets low-energy use requirements for municipal or certain private buildings.
Last Updated: June 2021