State energy code adoption maps, detailed information on state code history, statutes, and regulations.
Leading national organization focused on advancing the economy and saving energy.
Analyses of recent versions of IECC and ASHRAE Standard 90.1, ongoing research and collaboration on energy code development and implementation.
Free compliance software for residential and commercial buildings, developed and supported by the U.S. Department of Energy.
Buy a copy of the IECC or other model building codes, or get involved in national code development.
Buy a copy of ASHRAE Standard 90.1 or other standards, or get involved in standard development.
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