Mandatory residential building codes require a minimum level of energy efficiency for new residential buildings. The Department of Energy estimates that between 1992 and 2012, residential codes resulted in cumulative energy savings of 1.8 quads. They project that an additional 21.2 quads will be saved through 2040 due to residential building energy codes.
Guam has adopted the 2009 IECC as mandatory for residential new construction.
Last Updated: June 2016
The 2011 Puerto Rico Building Code requires compliance with the 2009 IECC for residential new construction. Municipalities are permitted to adopt stretch codes if more stringent than the statewide code.
Last Update: July 2016
The Virgin Islands Building Codes require compliance with the 2009 IECC for residential new construction.
Last Updated: July 2016