Washington's carbon allowance price fell 39% in one quarter. It went from $64.56 at the June 2026 auction to $39.50 on September 2, 2026. That drop came weeks after Washington, California and Québec signed an agreement to link their carbon markets.
The settlement price is what a covered emitter pays for one allowance at the state's quarterly auction. One allowance equals the right to emit one metric ton of CO2e.
Three more findings, strongest first:
- Every Washington auction has sold out. September was 15 for 15.
- California's first mandatory emissions reports are due November 10, 2026. That deadline catches most large Seattle and Portland companies through their California sales.
- Oregon's cap is running and under fresh legal attack. A new court petition was filed in April 2026.
What this page covers: what Washington and Oregon regulators, investors and buyers expect from sustainability communications. Who it's for: marketing, communications and sustainability leads at companies that operate in, sell into or raise capital in the Pacific Northwest. Key sources: Washington Department of Ecology auction notices (March, June and September 2026), the Ecology linkage page, EDF auction analysis, OPB court reporting (April 2026), Sullivan & Cromwell on CARB's initial regulation (October 2026), plus the 30+ sources listed at the end. Last checked: November 2, 2026.
The Short Answer
In this region, a sustainability claim gets read three ways at once. Regulators read it as a compliance statement. Investors read it as a disclosure. Buyers read it as a product claim. Write every claim so it survives all three readings.
The four rules that matter most:
- Date every carbon number. Washington's allowance price moved $25 in one quarter. An undated price is a stale claim.
- Tie progress to state benchmarks. Use the CCA's 2030, 2040 and 2050 limits, or Oregon HB 2021's 80/90/100 glidepath.
- Never blur allowances, offsets and credits. Regulators and reporters here know the difference.
- Prepare as if California's rules apply to you. For most large regional companies, they already do.
1. The Climate Commitment Act in 2026: What Changed
The price signal moved fast
Washington ran three auctions in 2026. Here's how the settlement price moved:
| Auction | Date | Settlement price | Notes |
|---|---|---|---|
| #13 | March 2026 | $65.26 | Sold out |
| #14 | June 2026 | $64.56 | Sold out, about $233M projected revenue |
| #15 | September 2, 2026 | $39.50 | Sold out, $11.58 above the $27.92 floor |
Sources: Washington Department of Ecology, Auction #15 summary, EDF Climate 411 (June 2026), EDF Climate 411 (September 2026)
The September auction sold 6,284,205 allowances. Utilities consigned 3,484,205 of them and Ecology offered 2,800,000. Washington Department of Ecology
For context, 2025 auctions brought in $1.68 billion and allowances averaged $57.60. All-time revenue passed $4.32 billion by the end of 2025. Clean & Prosperous Institute
Linkage is now a signed agreement
Here's the timeline:
- June 25, 2026: Washington, California and Québec signed a linkage agreement.
- September 17, 2026: Ecology signed its updated cap-and-invest rules.
- September 21, 2026: Governor Newsom cleared CARB to start its own linkage rulemaking.
- October 24, 2026: Washington's linkage rules took effect.
- 2027: Target for joint operation.
Sources: ClearBlue Markets, Washington Department of Ecology, Linkage
Signing is not the same as linking. California and Québec still have to finish their own rules. Ecology must give the market at least 90 days' notice before linkage takes effect. Washington Department of Ecology
What this means if you aren't a covered entity
Most companies reading this aren't covered. The CCA covers fuel suppliers, utilities and facilities above 25,000 metric tons of CO2e a year. Sightline Institute You still feel it in four places:
- Energy costs. Fuel suppliers and gas utilities are covered, so allowance costs flow into what you pay for fuel and gas.
- Customer questions. Covered customers and large buyers are building emissions inventories. They ask suppliers for data.
- Funding. CCA revenue funds grants and programs. At least 35% must benefit overburdened communities and at least 10% must go to Tribal-supported projects. Clean & Prosperous Institute If you received CCA money, describe it accurately and name the program.
- Your claims. Washington's market will soon trade with California's. Any claim that cites "Washington's carbon price" needs a date and a source.
Communications moves for the CCA
- Don't call a CCA-funded project carbon neutral. Funding a reduction isn't the same as offsetting your footprint.
- Don't cite an allowance price without a date. Use "settled at $39.50 on September 2, 2026," not "carbon costs about $40."
- Know what an offset is here. CCA offsets are capped as a share of compliance obligations and must deliver direct environmental benefit to the state. Climate Action Reserve
- Treat the law as settled. In November 2024, voters rejected repeal Initiative 2117 by 61.95% to 38.05%. Ballotpedia Hedging language like "if the program survives" now reads as out of date.
2. The Rest of the Regulatory Landscape
Washington's long-term targets
The CCA's statutory limits are 45% below 1990 emissions by 2030, 70% below by 2040 and 95% below by 2050, with net zero. Washington Department of Ecology
The Clean Energy Transformation Act (CETA, 2019) sets the power sector's path. Coal left utility portfolios by the end of 2025. Electricity must be carbon neutral by 2030 and 100% renewable or non-emitting by 2045. Washington Law Review, Front and Centered
Oregon: running, and contested
The Oregon Court of Appeals struck down the original Climate Protection Program (CPP) in December 2023 on procedural grounds. The Environmental Quality Commission reinstated it on November 21, 2024, and compliance began in January 2025. International Carbon Action Partnership
The rebuilt program covers natural gas utilities, liquid fuel and propane suppliers, and trade-exposed industrial sources above 15,000 tCO2e. It targets 50% below 2017 to 2019 average levels by 2035 and 90% by 2050. ALL4
Covered entities can use Community Climate Investment (CCI) credits for part of their obligation. Credits cost $136 per ton in 2026. OPB
On April 16, 2026, nearly 30 petitioners led by Oregon Business & Industry asked the Court of Appeals to rule that the program exceeds the commission's authority. NW Natural and the Alliance of Western Energy Consumers are among them. OPB In mid-2026, the Governor's Prosperity Council also recommended replacing the CPP with a market design aligned with Washington and California. Oregon Journalism Project
Oregon's power sector runs on HB 2021. The two large investor-owned utilities must cut retail electricity emissions 80% below baseline by 2030, 90% by 2035 and 100% by 2040. That's five years ahead of Washington. Davis Wright Tremaine
The practical read: treat Oregon's direction as durable and its mechanism as contested.
Federal retreat, state floor
The SEC's 2024 climate disclosure rule never took effect. On May 29, 2026, the Commission proposed rescinding it entirely. DLA Piper
California filled the gap. CARB's initial regulation took effect October 12, 2026, and confirmed November 10, 2026 as the first SB 253 reporting deadline for Scope 1 and 2 emissions. SB 253 applies to companies above $1 billion in revenue doing business in California. Sullivan & Cromwell, Brightest
SB 261's climate-risk reports, for companies above $500 million, are on hold. The Ninth Circuit enjoined enforcement in November 2025 while the appeal continues. Sullivan & Cromwell
Washington's own California-style disclosure bill, SB 6092, stalled in 2025. Good.Lab
3. Regional Investors Set the Tone
Oregon State Treasury manages the roughly $94 billion Oregon Public Employees Retirement Fund (OPERF). Its Net Zero Plan commits to net-zero portfolio emissions by 2050 and a 60% cut in portfolio carbon intensity by 2035. It excludes new private-market commitments to funds that invest mainly in fossil fuels. It also aims to triple climate-positive private investments to about $6 billion by 2035. Net Zero Investor Treasury publishes proxy votes and a yearly net-zero progress report. Divest Oregon
The Washington State Investment Board (WSIB) has publicly backed mandatory corporate climate disclosure, including greenhouse gas reporting. InfluenceMap
Utility customers act like investors too. More than 220,000 Portland General Electric customers pay extra for its Green Future renewable program. PGE calls it the largest voluntary renewable program in the US by participation. PGE 10-K via SEC
The practical read: you're writing for pension funds with decarbonization mandates, customers who pay premiums for verified clean power and advocacy groups that read filings line by line. Vague aspiration fails all three.
Greenwashing risk is litigation risk here
Washington's Consumer Protection Act is already in play. A multi-state class action against Amazon's "Climate Pledge Friendly" badging cites it alongside the FTC Green Guides. Lexology Nationally, the November 2025 Tyson settlement bars unsupported "net zero by 2050" and "climate-smart" claims for five years. Lexology REI has also faced PFAS-related challenges to its sustainability marketing. Beveridge & Diamond
See the full case log in the Greenwashing Enforcement Tracker.
4. PNW Standards That Prove a Claim
GRI, SASB and TCFD are table stakes. See ESG Frameworks Explained for those. Regional credibility comes from the standards this region built.
Salmon-Safe. The region's place-based eco-label certifies land management that protects water quality and salmon habitat. More than 900 farms and over 350 vineyards in Oregon, Washington and British Columbia are certified. Salmon-Safe, Columbia Basin Conservation District
LIVE (Low Input Viticulture & Enology). LIVE has certified sustainable winegrowing in Oregon since 1999 and Washington since 2006. It covers more than 27,000 acres across 320 vineyards and 37 wineries. Lonesome Rock Cellars
B Corp and benefit companies. Portland is one of the country's deepest B Corp communities. Hopworks became the first certified B Corp brewery in the Pacific Northwest in 2015. Hopworks Oregon's benefit company statute gives businesses a legal form to match the message. For the 2026 standard changes, see B Corp Just Rewrote the Rulebook.
5. Communications Checklist for Washington and Oregon
- Date every number. Carbon prices, targets and baselines all need a year. The CCA price moved 39% in a quarter.
- Anchor claims to state benchmarks. CCA 2030/2040/2050, HB 2021's 80/90/100 and CETA's 2030 carbon-neutral milestone are the reference points your audience knows.
- State the metric, the boundary and the year. OPERF's 60%-by-2035 intensity target trained regional investors to expect all three.
- Treat equity commitments as substance. The CCA's 35% and 10% floors and Oregon's CCI structure are the templates your community-benefit claims will be compared against.
- Pre-clear claims against the FTC Green Guides and Washington's CPA. Assume plaintiffs' counsel will read them. Start with what greenwashing actually is.
- Use regional certifications as proof. Salmon-Safe, LIVE, Sustainable WA and B Corp turn marketing language into verified claims.
- Plan for a linked market in 2027. Washington's price will start tracking the joint California and Québec market. Update any carbon-price references then.
- Disclose as if SB 253 applies to you. For large regional companies it does, starting November 10, 2026. For smaller suppliers, it shows up as data requests from those companies.
Why Salish Sea
Regional authority comes from the specifics. That means knowing the difference between a CCA allowance and a CCI credit, between Ecology's allowance budgets and DEQ's compliance instruments, and between what OPERF asks of managers and what Washington's CPA asks of marketers.
I track this landscape so your claims hold up in Olympia, in Salem and in court. If you need help writing them, see ESG communications services.
Sources
- Washington State Department of Ecology: Cap-and-Invest Program
- Washington State Department of Ecology: Auction #15 (September 2026) summary
- Washington State Department of Ecology: Linkage
- EDF Climate 411: June 2026 auction results
- EDF Climate 411: September 2026 auction results
- ClearBlue Markets: California and Washington advance linkage (September 2026)
- Sightline Institute: (Re)explaining Washington's Climate Commitment Act
- Clean & Prosperous Institute: Cap-and-Invest overview
- Clean & Prosperous Institute: Final CCA auction of 2025
- Ballotpedia: Washington Initiative 2117
- Climate Action Reserve: Washington cap-and-invest offsets
- Washington Law Review: CETA and CCA legal analysis
- Front and Centered: Equity in Washington's clean electricity law
- International Carbon Action Partnership: Oregon Climate Protection Program
- ALL4: Oregon's Climate Protection Program 2.0
- OPB: New legal challenge to Oregon's Climate Protection Program (April 2026)
- Oregon Journalism Project: DEQ announcement on the CPP (July 2026)
- Davis Wright Tremaine: Oregon HB 2021 analysis
- Portland General Electric 10-K (SEC EDGAR)
- DLA Piper: SEC proposes rescission of 2024 climate disclosure rules
- Sullivan & Cromwell: CARB initial regulation confirms November 10 deadline (October 2026)
- Brightest: California climate disclosure laws guide
- Good.Lab: U.S. state climate reporting laws guide
- Net Zero Investor: OPERF Net Zero Plan
- Divest Oregon: Oregon Treasury net-zero progress
- InfluenceMap: Washington State Investment Board climate policy engagement
- Lexology: U.S. greenwashing litigation trends
- Beveridge & Diamond: Mitigating greenwashing litigation risk
- Salmon-Safe: Vineyard certification
- Columbia Basin Conservation District: Salmon-Safe program
- Lonesome Rock Cellars: LIVE and Salmon-Safe certification
- Hopworks Urban Brewery: First B Corp brewery in the Pacific Northwest
Frequently Asked Questions
What is Washington's Climate Commitment Act?
It is Washington's economy-wide cap-and-invest law. Since January 2023, fuel suppliers, utilities and facilities emitting more than 25,000 metric tons of CO2e a year must hold one allowance for every ton they emit. The cap declines toward 95% below 1990 levels by 2050.
Does the Climate Commitment Act apply to small businesses?
Not directly. Most small and mid-size businesses are below the 25,000-ton threshold. They feel it indirectly through fuel and natural gas costs, CCA-funded grant programs and customers who are covered and ask suppliers for emissions data.
Is Washington's carbon market linking with California?
Yes. Washington, California and Québec signed a linkage agreement on June 25, 2026. Washington finalized its linkage rules in September 2026. California and Québec still have rulemaking to finish, and officials are targeting joint operation in 2027.
Is Oregon's Climate Protection Program still in effect?
Yes, as of November 2026. The program was reinstated in November 2024 and compliance began in January 2025. Nearly 30 petitioners led by Oregon Business & Industry filed a new legal challenge in April 2026, so the mechanism is contested even though the program is operating.
