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Debate over embodied‑carbon provisions: architects and climate advocates endorse optional pathways; industry urges tabling
Summary
SBCC heard dueling views on proposed embodied carbon provisions: architects and carbon‑leadership advocates supported optional materials and pathway approaches; the Washington Aggregate & Concrete Association urged rejecting or tabling proposals, arguing SBCC lacks authority to regulate embodied carbon as a health/safety standard.
Architects, climate advocates and some local jurisdictions told the State Building Code Council that the proposed embodied‑carbon provisions in the International Building Code offer useful, optional compliance pathways jurisdictions can adopt to reduce embodied emissions in construction.
Kjell Anderson (LMN Architects and former SBCC member) said the proposed changes are "ready for prime time," support option 1 (materials pathway), and would be optional for jurisdictions that choose to adopt them. He described the proposals as market‑enabling and argued they had been debated since 2024.
By contrast, Corey (representing the Washington Aggregate & Concrete Association) urged the council to table or reject the embodied‑carbon proposals, argued the issue is procedural, and cited RCW 19.27.020 as limiting SBCC's authority to matters of minimum performance for health, fire and life safety. Corey requested the appendix language be shifted toward industry‑driven best practices and, if appropriate, to the legislature.
Council staff acknowledged written comments are still being correlated with verbal testimony and said all written testimony will be posted for public review; they did not take a vote during the hearing.
The exchange highlights a policy fault line: proponents see embodied‑carbon measures as optional, jurisdictionally adopted tools for market transformation; some industry groups see the proposals as exceeding the SBCC's health-and-safety authority and urged legislative or industry solutions instead. The council will accept written comments and consider the matter in upcoming workshops ahead of its Aug. 28, 2026 adoption decision.
No formal action was taken during the June 12 hearing.
