DOE Code Determinations

The Energy Policy and Conservation Act (EPCA, 42 USC 6833) establishes a role for the DOE to determine whether revisions to the Model Energy Code (succeeded by the IECC) or the ASHRAE/IES Standard 90.1 would improve energy efficiency in residential and commercial buildings, respectively.

All you ever wanted to know about energy code determinations!

For more information on the DOE Code Determinations see:

Residential Determination
Commercial Determination
State Certification Maps