The U.S. Department of Energy (DOE) has issued pre-publication Federal Register notice determining the updated model building energy codes, the 2021 International Energy Conservation Code (IECC) and ANSI/ASHRAE/IES Standard 90.1-2019, will increase energy efficiency in residential and commercial buildings, respectively. DOE analysis estimates the following national average savings for buildings meeting the updated code (as compared to the previous respective edition).

Each state must review and certify its state building codes relative to the updated editions of the IECC and Standard 90.1. Each notice provides further guidance on State code review processes and associated certifications.

According to a press release, certification statements provided by States shall be submitted two years after the notice has been published in the Federal Register. DOE will send a follow-up email to announce the closing date once each notice has published.

Additionally, certification statements must be addressed to the Building Technologies Office – Building Energy Codes Program Manager, U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, 1000 Independence Avenue SW, EE-5B, Washington, DC 20585.

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