Building Code Council adopts emergency amendment to 2021 code for A2L refrigerants

Oct 17, 2025

The Washington State Building Code Council found an emergency basis and adopted an emergency amendment to 2021 code language to align with recent ASHRAE 15 addenda addressing A2L (mildly flammable) refrigerants.

The full story

The Washington State Building Code Council on Oct. 17 voted to find an emergency basis and adopt an emergency amendment to the 2021 state building code that updates language governing the use of A2L (mildly flammable) refrigerants.

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