The U.S. Department of Energy (DOE) evaluates national and state-level impacts associated with building energy codes. That analysis shows that recent updates to the national model energy codes, including the International Energy Conservation Code, come at a growing cost to American households. 

The U.S. Department of Energy (DOE) has issued a request for information (RFI) seeking input on its methodology for assessing consumer impacts associated with residential and commercial building energy codes, toward the objective of ensuring transparency in building energy code evaluations.