National Law Review
6/18/2026

Washington – Ecology Proposes Linkage to Connect Washington, California, and Québec Carbon Markets
Short summary
Washington proposes updating its Cap-and-Invest Program rules to enable future linkage with California and Québec's carbon market, expanding compliance flexibility. The proposal sets allowance budgets through 2050, updates utility allocation and reporting rules, and revises market infrastructure including price controls. Public comment period runs through July 17, 2026, with rule adoption expected September 23, 2026.
- •Washington Ecology Department proposes amendments enabling future carbon market linkage with California and Québec
- •Proposal sets allowance budgets through 2050 and revises market infrastructure including price controls at $80 ceiling
- •Public comment deadline July 17, 2026; rule adoption expected September 23, 2026
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