Table of Contents >> Show >> Hide
- What Are California’s Climate Disclosure Laws?
- Why a Court Fight Was Inevitable
- What the Federal Judge Decided (and What “Backs” Really Means)
- The November 2025 Plot Twist: Ninth Circuit Pauses SB 261 (But Not SB 253)
- What Companies Should Be Doing Now (Even If They Hate This)
- Why California Is Pushing This (Beyond “Because California”)
- What Happens Next in 2026?
- On-the-Ground Experiences: What This Looks Like Inside Companies (About )
- Conclusion
California has a long, proud tradition of turning “nice ideas” into “forms you must file.” The state’s corporate
climate disclosure lawstwo of the most sweeping in the countrydo exactly that: they turn greenhouse-gas emissions
and climate risk from fuzzy talking points into numbers, narratives, and (inevitably) spreadsheets.
In August 2025, a federal judge in Los Angeles refused to hit the pause button on these laws while a business-group
lawsuit moves forward. Translation: the disclosures are still on track, and “we’ll see what happens in court” is not
a compliance strategy. Then, in November 2025, the Ninth Circuit added a twist by temporarily pausing one law (SB 261)
while leaving the other (SB 253) standing. That combotrial-court green light plus appellate-court yellow flaghas
companies doing the regulatory equivalent of parallel parking: slowly, carefully, and with lots of head-checking.
Here’s what the laws require, what the courts have said so far, why this matters far beyond California, and how
businesses are adaptingsometimes gracefully, sometimes like a cat being introduced to a bathtub.
What Are California’s Climate Disclosure Laws?
The “climate disclosure laws” people talk about are a pair of statutes signed in 2023 and later amended in 2024.
They apply to large U.S.-based companies “doing business in California” and use familiar climate-reporting frameworks
to standardize what gets disclosed. One focuses on emissions numbers; the other focuses on financial risk narratives.
SB 253: The Climate Corporate Data Accountability Act (Emissions Disclosures)
SB 253 targets big companiesgenerally, U.S.-based entities with more than $1 billion in annual revenue that do
business in California. Covered companies must report their greenhouse-gas emissions across:
- Scope 1: direct emissions (think: company-owned boilers, furnaces, fleet fuel)
- Scope 2: indirect emissions from purchased energy (electricity, steam, heating/cooling)
- Scope 3: indirect upstream and downstream emissions across the value chain (supplier emissions,
customer use, shipping, business travel, and moreaka “everything else”)
Under CARB’s initial regulatory materials, Scope 1 and Scope 2 reporting begins in 2026, and Scope 3 reporting
begins for reporting year 2027. CARB has also proposed an initial first-year deadline of August 10, 2026
for the first Scope 1 and Scope 2 submissionbecause what says “summer fun” like an emissions report due date.
The intent is not to make companies write a climate manifesto. It’s to make them publish comparable, decision-useful
emissions data using established accounting approaches (most commonly associated with the Greenhouse Gas Protocol).
SB 261: The Climate-Related Financial Risk Reporting Act (Risk Disclosures)
SB 261 is the narrative sibling. It generally applies to U.S.-based entities with more than $500 million in annual
revenue doing business in California. Covered companies must publish a climate-related financial risk report on a
biennial schedule and describe measures adopted to reduce and adapt to those risks.
In plain English: SB 261 asks companies to explain how climate impacts (like heat, floods, wildfires, supply-chain
disruptions, and policy shifts) could affect the businessand what the company is doing about it. This tends to align
with widely used disclosure frameworks (often associated with TCFD-style thinking), which is one reason California
sees it as “normal business analysis,” not an ideological pledge.
Why a Court Fight Was Inevitable
When a law forces companies to speakespecially publiclysomeone is going to argue “compelled speech.”
Business groups challenged SB 253 and SB 261 on First Amendment grounds, arguing the laws force companies to publish
contested messages and impose heavy compliance costs. California argued the laws regulate commercial speech and serve
substantial state interests such as giving investors reliable, comparable information and supporting emissions-reduction
goals.
If this sounds like a niche legal debate, it isn’t. The outcome helps define the boundary between:
“You may sell products here” and “You must also publish standardized information here.”
That boundary matters for climate disclosures, nutrition labels, privacy notices, consumer warningspretty much any
policy that tries to make markets work better by making information less chaotic.
What the Federal Judge Decided (and What “Backs” Really Means)
In August 2025, U.S. District Judge Otis D. Wright II (Central District of California) denied the plaintiffs’ request
for a preliminary injunction that would have blocked SB 253 and SB 261 while the lawsuit proceeds. That is the core
“California court backs the laws” moment: the judge did not rule the case is over, but refused to freeze the statutes
pre-trial.
A preliminary injunction is an emergency brake. To get one, plaintiffs must clear several hurdles (including showing
a likelihood of success on the merits and irreparable harm). The judge concluded the plaintiffs did not meet that bar.
That decision alone reshaped corporate planning: once a court refuses to pause the law, the “maybe it goes away”
theory becomes a risky betespecially for large businesses that need months (or years) to build reliable reporting
systems.
The First Amendment Framework: Commercial Speech, Not a Political Soapbox
The court treated the statutes as regulating commercial speechthe kind of speech linked to economic
activity, where states have more room to require factual disclosures. This matters because commercial speech usually
gets less constitutional protection than pure political expression. A company can’t usually dodge consumer warning
rules by insisting, “But my brand vibe is freedom.”
SB 253 vs. SB 261: “Purely Factual” Data Gets Friendlier Review
Here’s the key split the court drew:
-
SB 253 (emissions numbers) can qualify for a more deferential standard when it compels the disclosure
of “purely factual and uncontroversial information.” The judge’s discussion treats companywide emissions reporting
as data disclosure, not an ideological label. -
SB 261 (financial risk reporting) is different because risk reports inevitably involve judgment,
assumptions, and forward-looking analysis. The court treated SB 261’s compelled disclosures as not purely factual,
which pushes the analysis toward intermediate scrutiny.
Importantly, “intermediate scrutiny” doesn’t mean “automatically invalid.” It means the government needs to show
the requirement directly advances a substantial interest and is not more extensive than necessary. The judge concluded,
at the injunction stage, the plaintiffs still hadn’t shown they were likely to win.
Investor Information Was the Strongest Justification
The decision repeatedly emphasizes investor needs. The state presented evidence that large investors care about
consistent climate risk and emissions information because physical impacts and transition risks can affect assets,
supply chains, and market volatility. The court treated that as a serious governmental interest at this stage.
Interestingly, the court was more skeptical of the state’s attempt to justify SB 253 primarily as “consumer information”
the way a product label might be. The judge’s analysis suggests investor-oriented transparency was the sturdier pillar.
That distinction is subtle but meaningful: it frames these laws as capital-markets infrastructure, not just consumer
persuasion.
The November 2025 Plot Twist: Ninth Circuit Pauses SB 261 (But Not SB 253)
If the August 2025 decision told companies “keep building,” the November 2025 decision told them “build… but maybe
don’t press ‘publish’ on SB 261 just yet.”
On November 18, 2025, the Ninth Circuit temporarily enjoined enforcement of SB 261 pending appeal.
The court did not similarly halt SB 253. So emissions reporting remains the main event,
while climate-risk narrative reporting is, for the moment, in a legal holding pattern.
Practically, that matters because the first SB 261 reports otherwise would have been due at the start of 2026. The
pause reduced immediate pressure on SB 261 reporting timelines, but it did not erase the operational reality: many
companies still need climate risk governance, scenario thinking, and internal controlsbecause investors, lenders,
insurers, and global customers are still asking the questions, whether or not California is collecting the homework.
What Companies Should Be Doing Now (Even If They Hate This)
This is not legal advicebut it is a reality check. The companies that will handle these laws best are not necessarily
the “greenest.” They’re the ones that treat disclosures like financial reporting: define boundaries, document methods,
build controls, and make sure someone can explain the numbers without whispering, “Please don’t ask about Scope 3.”
Step 1: Figure Out Whether You’re Covered (and Don’t Assume You Aren’t)
California uses “doing business in California” concepts that can capture companies without a big, obvious headquarters
footprint in the state. If you sell into California, have employees there, or otherwise meet the state’s doing-business
thresholds, you may be in scope. This is why companies far outside Sacramento still care deeply about what Sacramento
does.
Step 2: Build an Emissions Inventory That Can Survive Daylight
The core SB 253 deliverable is an emissions inventory that is consistent, explainable, and repeatable year to year.
For many organizations, Scope 1 and Scope 2 are challenging but doable: fuel use, purchased electricity, refrigerants,
fleet, stationary combustion. The bigger challenge is consistency across business units and acquisitionsbecause a
company can change faster than a spreadsheet template.
Scope 3 is the boss level. It may require supplier data requests, estimates, model-based calculations, and hard calls
about data quality. The goal is not perfection on day one; it’s a defensible method with a plan to improveespecially
because CARB has signaled enforcement discretion and “best-available data” thinking for the first reporting cycle.
Step 3: Treat Climate Reporting Like Real Reporting
The fastest way to create reputational risk is to publish numbers that your own teams can’t reconcile.
Companies are increasingly building:
- clear emissions-accounting boundaries and methodology memos
- data collection workflows (often tied to procurement, facilities, and finance)
- controls and sign-offs (so someone is accountable when numbers change)
- audit/assurance readiness (even before formal assurance requirements fully mature)
This is the unglamorous part of climate transparency: the work resembles the back office of financial reporting, not
the front page of a sustainability brochure.
Step 4: Map Overlaps With Other Regimes (Because You Only Want to Build This Once)
Even companies that never cared about “ESG” as a label are increasingly building disclosure systems because customers,
investors, and overseas rules are forcing harmonization. Meanwhile, at the federal level, the SEC’s climate disclosure
rules have been stayed and the SEC voted in 2025 to end its defense of those rulesleaving a patchwork landscape where
state and international regimes continue to drive disclosure expectations.
The practical strategy is convergence: use a single internal data backbone that can feed California disclosures,
lender questionnaires, customer procurement requirements, and global reporting needs, with jurisdiction-specific
packaging layered on top.
Why California Is Pushing This (Beyond “Because California”)
California’s argument is essentially: climate risk is financial risk, and emissions are measurable. If capital markets
and consumers are making decisions based on climate claims and climate exposure, standardized disclosures reduce
greenwashing and improve comparability.
The court’s analysis reflects that logic. It views emissions disclosures less as compelled ideology and more like
required economic informationsimilar in spirit to price transparency, product warnings, and other disclosure regimes
aimed at improving decision-making.
Critics respond that emissions, especially Scope 3, involve estimates and assumptions; that “doing business in
California” functions like national regulation; and that the costs of compliance can be significant. Supporters respond
that without standardized rules, the market gets flooded with inconsistent metrics that are easy to spin and hard to
compare.
What Happens Next in 2026?
As of early January 2026, here’s the posture:
- SB 253 remains in effect, and CARB has proposed an initial Scope 1 and Scope 2 reporting deadline of August 10, 2026.
- SB 261 is temporarily paused by the Ninth Circuit pending appeal, delaying the first climate-risk reports that otherwise were due at the start of 2026.
-
Litigation continues. The business-group challenge is still alive, and additional suits have been filed
(including by major energy companies), keeping the constitutional arguments in motion.
If you’re a covered company, the safe assumption is that the operational work is still required. Court timelines
can stretch, but building an emissions inventory and controls typically can’t be done in a weekend. (“We’ll do it in Q4”
is not a compliance plan; it’s a jump scare.)
On-the-Ground Experiences: What This Looks Like Inside Companies (About )
Talk to the people actually doing this worksustainability leads, finance teams, procurement managers, internal audit,
and whichever unlucky soul owns the “data” functionand you hear a consistent theme: the hardest part isn’t the
headline requirement. It’s turning a global organization into something that can answer a simple question with a
consistent number.
In many companies, the first “experience” of SB 253 isn’t legal. It’s emotional. Someone realizes that emissions data
lives in five places, owned by three departments, in two units of measurement, across four fiscal calendars. A factory
reports natural gas in therms, a fleet team reports fuel in gallons, and finance reports energy spend in dollars.
Converting it into carbon becomes an internal scavenger hunt where the prize is… more work.
Scope 1 and Scope 2 efforts often start with surprisingly practical conversations: Which facilities are in scope? Who
controls the utility bills? Are leases gross or net? Did that warehouse switch providers mid-year? Many teams build a
“source of truth” list of meters, accounts, and assets before they ever calculate a single ton of CO2e.
The teams that do it well treat it like a close cousin of financial close: documented assumptions, defined ownership,
and a calendar that doesn’t rely on heroics.
Then comes Scope 3, where the vibe shifts from “accounting” to “detective novel.” Procurement asks suppliers for data
and gets responses like: (1) a polished PDF with numbers, (2) a spreadsheet with mysteries, or (3) complete silence.
Companies discover that supplier relationships are strong when negotiating price, but become suddenly philosophical
when asked about emissions factors. Many teams start with best-available estimates for the first cycle and build a
supplier-engagement plan that’s part education, part leverage, and part gentle nagging.
Meanwhile, executives experience a new kind of discomfort: climate disclosures force internal alignment. Marketing may
love a “net-zero” tagline, but SB 253-style reporting demands numbers that can be reconciled and explained. That
tension is pushing many companies to formalize climate governance: steering committees, sign-offs, and escalation paths
for “we can’t support that claim with data.” It’s not glamorous, but it reduces the risk of publishing something that
ages badly.
Even with SB 261 temporarily paused, many risk teams are still doing climate-related financial risk work because
lenders, insurers, and major customers keep asking for it. The most common internal “aha” moment is that climate risk
isn’t just hurricanes and heat; it’s also regulation, litigation, energy price volatility, supply disruption, and
stranded assets. Companies that already run strong enterprise risk management processes often find SB 261-style work
fits naturallywhile companies that don’t suddenly realize they’ve been relying on optimism as a control environment.
The most honest takeaway from inside-the-company experiences is this: once the data systems and governance exist,
compliance gets easier each cycle. The first year is the expensive yearthe year you stop guessing and start measuring.
After that, the work becomes less like reinventing a wheel and more like aligning it… and occasionally discovering it
was installed backward.
Conclusion
The phrase “California court backs climate disclosure laws” is shorthand for a real legal milestone: a federal judge
refused to freeze SB 253 and SB 261 at the preliminary injunction stage, and that decision signaled that climate
transparency requirements can survive serious constitutional challengesat least long enough to move forward.
The later appellate pause on SB 261 underscores that the legal fight isn’t over, but it also sharpens the practical
message: SB 253 is advancing, and emissions transparency is becoming a baseline expectation for large companies tied to
California’s economy.
For businesses, the smartest move is not panicit’s systems. Build reliable emissions inventories, document methods,
improve supplier data over time, and integrate climate risk into governance the way you would any major operational
exposure. Whether you’re thrilled or annoyed, the direction of travel is clear: climate disclosure is becoming less
like a press release and more like reporting.
