TAG rejects proposal to insert IECC ERI path into Washington integrated draft

Mar 8, 2025

The Residential Energy Code technical advisory group voted against adding the IECC 2024 Energy Rating Index compliance path to Washington—s integrated draft, citing a lack of demonstrated equivalency to the state—s existing credit-based approach.

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The Residential Energy Code technical advisory group for the Washington State Building Code Council voted down a motion to include the IECC 2024 Energy Rating Index (ERI) compliance path in the integrated draft used to accept code-change proposals.

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