The headlines are tempting: the SEC is moving to scrap the climate-disclosure rules it adopted in 2024, and some commentators have read that as the end of mandatory climate reporting for US companies. For any business with revenue in California or operations in Europe, the opposite is closer to the truth. The federal rule was only ever one of several overlapping regimes — and the others are advancing, not retreating.
If your reporting plan hinges on the SEC standing down, this is the moment to stress-test it. Below is what is actually happening in Washington, why it changes less than it appears to, and what reporting teams should do while the noise settles.
What the SEC is actually doing
On 3 June 2026, the SEC’s proposed rescission of its 2024 climate-related disclosure rules was published in the Federal Register, opening a comment period that runs through 3 August 2026. Two points are easy to miss in the headlines. First, this is a proposal in its comment window, not a settled outcome. Second, the plan is to eliminate the dedicated framework rather than replace it — reverting issuers to principles-based, materiality-focused disclosure under existing securities law. The Commission has pointed to compliance savings of roughly $4.9bn a year.
Removing a prescriptive rulebook is not the same as removing the obligation to disclose. Material climate risks that affect a reasonable investor’s decision can still require disclosure under long-standing materiality principles. What changes is the how and the how much — not the underlying duty. And for most multinationals, the SEC was never the binding constraint anyway.
Why “no SEC rule” doesn’t mean “no disclosure”
Three other regimes keep mandatory climate and greenhouse-gas disclosure firmly alive for US companies of any size that trade across state or national borders. None of them depend on the SEC.
California: the de facto US standard
California’s climate-disclosure laws reach far beyond the state’s borders because they apply to companies “doing business in California,” regardless of where they are headquartered. Two statutes matter:
- SB 253 (Climate Corporate Data Accountability Act) requires companies with total annual revenues above $1bn to report Scope 1, Scope 2 and, in a later phase, Scope 3 greenhouse-gas emissions.
- SB 261 (Climate-Related Financial Risk Act) requires companies with revenues above $500m to publish a climate-related financial-risk report aligned with the TCFD recommendations.
Because the revenue thresholds are low relative to the size of a typical multinational, the practical effect is that a large share of US companies that would have reported to the SEC are captured by California instead — and California explicitly requires Scope 3, which the federal approach was always more cautious about. For most large filers, the toughest disclosure bar in the US now sits in Sacramento, not at the SEC.
The EU: CSRD reaches across the Atlantic
The EU’s Corporate Sustainability Reporting Directive pulls in non-EU groups through their European operations. A US parent with substantial EU subsidiaries or branches can fall directly within scope, and even companies that sit outside mandatory scope routinely receive value-chain data requests from European customers who need the numbers for their own ESRS reports. The recent “Omnibus” simplification narrowed who must report at the top of the chain, but it did not switch off the demand for emissions and sustainability data flowing down global supply chains.
In other words, even a US company with no EU listing can find itself assembling ESRS-grade data because a major European buyer asks for it. If you sell into Europe, CSRD is part of your reality whether or not your own name is on a filing.
The UK: anti-greenwashing and SDR
For US groups with UK-regulated financial arms, the FCA’s Sustainability Disclosure Requirements regime adds a third layer. Its anti-greenwashing rule applies to all FCA-authorised firms, and from 30 June 2026 the remaining in-scope asset managers above £5bn in assets must publish entity-level disclosures. The throughline is consistent: any claim you make about sustainability has to be substantiated, and the supporting data has to exist.
Fragmentation, not freedom
The real consequence of the SEC’s retreat is not less work — it is less harmonisation. A single US-federal climate rule would at least have given multinationals one reference point that broadly tracked the global ISSB and EU baselines. Without it, a company can find itself reconciling California’s emissions thresholds, the EU’s double-materiality model, and the UK’s disclosure expectations, each with its own scope, boundary and timing.
That is an argument for building disclosure on a single, well-governed dataset rather than chasing each regime with a separate project. The metrics underneath — Scope 1, 2 and 3 emissions, climate risk, governance and targets — overlap heavily. The expensive mistake is collecting them three times.
What reporting teams should do now
- Map your real obligations, not the federal one. Test your revenue and operations against California’s SB 253 and SB 261 thresholds and against EU value-chain exposure before assuming the SEC change lets you scale back.
- Keep your GHG inventory live. Scope 1, 2 and 3 data feeds California, CSRD and customer requests alike, so a robust carbon accounting foundation is the one investment that pays off under every regime.
- Build once, report many times. Structure your data so a single source can be mapped to multiple frameworks rather than rebuilt for each.
- Watch the comment window, but don’t wait on it. The SEC proposal closes for comment on 3 August 2026; nothing about that date pauses California or Europe.
The companies that handle this period well will be the ones that treated the SEC rule as one input among several, not the keystone. The disclosure expectation has not gone away — it has simply spread out, and it now rewards teams with clean, reusable data more than ever.
Reporting under more than one rulebook? Horizon ESG helps teams collect emissions and sustainability data once and map it to CSRD, California and other frameworks from a single source. See how it works.
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