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Building Code Council adopts emergency rule to align mechanical code with ASHRAE refrigerant updates
Summary
The Washington State Building Code Council voted to approve emergency amendments to the Washington State Mechanical Code to reflect recent ASHRAE 15 and ASHRAE 34 changes for A2L refrigerants. The council found an emergency and approved the emergency rule, which will be followed by the usual rulemaking steps and public process.
The Washington State Building Code Council voted on Jan. 24 to adopt emergency amendments to the Washington State Mechanical Code to align the code with recent ASHRAE 15 and ASHRAE 34 changes addressing A2L refrigerants.
The council first voted by the required supermajority that an emergency basis existed, then approved filing an emergency rule to provide immediate, statewide guidance while permanent rulemaking proceeds. Council members and contractors told the council the guidance is needed now to reduce permitting delays and clarify how jurisdictions should evaluate systems that use low‑global‑warming refrigerants.
Why it matters: Manufacturers and building designers have…
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