Washington agrees to join carbon market with California and Quebec
SEATTLE — Washington took a key step Thursday to combine its carbon market with one operating in California and Quebec, a move expected to drive down costs for carbon-emitting businesses once the programs are joined.
State Department of Ecology Director Casey Sixkiller signed the so-called linkage agreement during a ceremony in downtown Seattle. California and Quebec still must complete additional steps, including adopting regulations, before a linked market can take effect. Officials say the markets should be operating together by 2027.
Once the joint auctions begin, Washington will be part of the world’s largest sub-national carbon market.
This was expected. When Washington established the Climate Commitment Act in 2021, it required the Department of Ecology to seek to join the California and Quebec market.
https://washingtonstatestandard.com/2026/06/25/wa-moves-closer-to-joint-carbon-market-with-california-and-quebec/