California’s pioneering climate-related financial risk disclosure law, SB 261, has been temporarily halted by a court injunction, casting uncertainty on its implementation as companies prepare for future compliance amidst ongoing legal battles.
California’s groundbreaking climate disclosure requirement under Senate Bill 261 (SB 261), known as the Climate-Related Financial Risk Act, faces a significant legal challenge that has temporarily paused its implementation. On November 18, 2025, the Ninth Circuit Court of Appeals granted an injunction pending appeal, effectively halting enforcement of SB 261 while the Court prepares to hear full arguments on January 9, 2026. The law, which was enacted in October 2023 as part of the California Climate Accountability Package, mandates that companies doing business in California with annual revenues exceeding $500 million disclose comprehensive climate-related financial risk reports. These reports address both physical risks, such as climate-induced damage to operations, and transition risks, including regulatory and market changes associated with moving to a low-carbon economy.
SB 261 represents the first U.S. jurisdiction to require such detailed climate risk disclosure, reflecting California’s broader ambition to lead on climate accountability and corporate transparency. The law obliges affected entities to report on governance, strategy, risk management, and metrics and targets related to climate risks, aligning their disclosures with established frameworks like the Task Force on Climate-related Financial Disclosures (TCFD) or the International Financial Reporting Standards (IFRS) sustainability standards. Reports were originally due to be published by January 1, 2026, with companies required to post links to their disclosures for public access.
However, the injunction means that this January 1 deadline is effectively suspended while legal proceedings unfold. The lawsuit, brought by plaintiff organisations including the U.S. Chamber of Commerce and major corporations such as Exxon Mobil, challenges SB 261 and its companion law, Senate Bill 253 (SB 253), which requires separate greenhouse gas emissions disclosures. Exxon Mobil’s recent litigation, filed in October 2025, asserts that the laws violate the First Amendment by compelling speech that the company argues is misleading or inconsistent with its voluntary disclosures.
Despite the court’s injunction on SB 261, the California Air Resources Board (CARB), the lead agency overseeing the regulation, proceeded with its scheduled public workshop on the same day. CARB used the session to clarify regulatory definitions and reporting expectations in preparation for the possibility that the injunction could be lifted. Notably, CARB confirmed that entities filing with the state Franchise Tax Board automatically meet the criteria of “doing business in California” and exceeding the $500 million revenue threshold. The Board also clarified that subsidiaries can have their reporting consolidated with parent companies, easing compliance burdens in complex corporate structures.
CARB stressed the importance of reporting consistency, guiding companies to identify the reporting framework adopted, the disclosures completed, and any exclusions or plans for future inclusion. Companies new to climate risk assessment were advised to begin by describing the relevance of such risks to their operations, even in the absence of material findings or mitigation actions.
While SB 261 has paused, companies must still prepare to comply with SB 253, which was not stayed by the Ninth Circuit and requires disclosure of Scope 1 and 2 greenhouse gas emissions by August 10, 2026. This parallel requirement ensures that at least some climate-related transparency obligations remain in effect.
The magnitude of California’s regulations, which apply to companies with revenues exceeding $500 million (a lower threshold than some initial drafts that referenced $1 billion), underscores the state’s commitment to rigorous corporate accountability on climate issues. These laws have been characterised as more stringent than the U.S. Securities and Exchange Commission’s proposed climate disclosure rules from 2022, positioning California as a regulatory trendsetter.
Given the dynamic and uncertain regulatory environment, companies affected by these requirements face a strategic choice between preparing for compliance and awaiting legal clarity. Industry experts suggest that maintaining flexibility and staying informed about upcoming court decisions and CARB advisories will be key. Legal and environmental consultancy firms, such as King & Spalding’s Environmental, Health and Safety team, are actively advising clients on how to navigate the evolving landscape, assess their obligations, and develop tailored compliance strategies.
In sum, California’s Climate-Related Financial Risk Act embodies an ambitious push toward enhanced climate risk transparency for large corporations. However, its immediate future is uncertain pending legal review, underscoring the complex balance between regulatory innovation and legal challenges in the evolving field of corporate environmental disclosure. The January 9, 2026 hearing before the Ninth Circuit will be crucial in determining whether SB 261’s reporting requirements will proceed as planned or face further delays. Meanwhile, companies subject to these laws are advised to remain vigilant and prepared.
- https://www.jdsupra.com/legalnews/california-s-new-climate-risk-report-8765230/ – Please view link – unable to able to access data
- https://www.jdsupra.com/legalnews/california-s-new-climate-risk-report-8765230/ – This article discusses the Ninth Circuit Court of Appeals granting an injunction pending appeal, halting the enforcement of California’s Senate Bill 261 (SB 261), known as the Climate-Related Financial Risk Act. The injunction pauses the requirement for companies with over $500 million in annual revenue to disclose climate-related financial risks, with the first reports due January 1, 2026. The article also highlights the California Air Resources Board’s (CARB) public workshop on SB 261 regulations, providing guidance for regulated entities in case the injunction is lifted.
- https://www.axios.com/local/san-diego/2023/10/11/newsom-california-bill-corporate-emissions-disclosure – California has enacted two new laws, SB 253 and SB 261, mandating large corporations to disclose their annual greenhouse gas emissions and climate-related financial risks. Signed by Governor Gavin Newsom, these measures represent the strictest corporate emissions disclosure requirements in the U.S., surpassing the Securities and Exchange Commission’s proposed rules from 2022. The regulations, to be formalized by the California Air Resources Board by 2025, apply to U.S. firms with revenue exceeding $1 billion, with disclosures starting in 2026.
- https://www.reuters.com/sustainability/climate-energy/exxon-sues-california-over-climate-disclosure-laws-2025-10-25/ – Exxon Mobil filed a lawsuit against the state of California on October 25, 2025, challenging two state laws—Senate Bills 253 and 261—that mandate large companies disclose their greenhouse gas emissions and climate-related financial risks. Filed in the U.S. District Court for the Eastern District of California, the lawsuit claims that these laws violate Exxon’s First Amendment rights by compelling it to communicate messages with which it disagrees. Exxon argues that California’s mandated reporting frameworks are misleading and interfere with its existing voluntary disclosures.
- https://www.arnoldporter.com/en/perspectives/advisories/2023/10/new-ca-ghg-legislation – With SB 261, California becomes the first jurisdiction in the United States to establish a requirement for climate-related financial risk disclosures. Climate-related financial risk is defined as ‘material risk of harm to immediate and long-term financial outcomes due to physical and transition risks, including, but not limited to, risks to corporate operations, provision of goods and services, supply chains, employee health and safety, capital and financial investments, institutional investments, financial standing of loan recipients and borrowers, shareholder value, consumer demand, and financial markets and economic health.’
- https://www.california.com/2023/10/11/california-enacts-strict-corporate-emissions-disclosure-laws/ – California has enacted two new laws, SB 253 and SB 261, mandating large corporations to disclose their annual greenhouse gas emissions and climate-related financial risks. Signed by Governor Gavin Newsom, these measures represent the strictest corporate emissions disclosure requirements in the U.S., surpassing the Securities and Exchange Commission’s proposed rules from 2022. The regulations, to be formalized by the California Air Resources Board by 2025, apply to U.S. firms with revenue exceeding $1 billion, with disclosures starting in 2026.
- https://www.cascadeenergy.com/news/californias-sb-253-and-sb-261-what-they-mean-for-your-business/ – California has enacted two new laws, SB 253 and SB 261, mandating large corporations to disclose their annual greenhouse gas emissions and climate-related financial risks. Signed by Governor Gavin Newsom, these measures represent the strictest corporate emissions disclosure requirements in the U.S., surpassing the Securities and Exchange Commission’s proposed rules from 2022. The regulations, to be formalized by the California Air Resources Board by 2025, apply to U.S. firms with revenue exceeding $1 billion, with disclosures starting in 2026.
Noah Fact Check Pro
The draft above was created using the information available at the time the story first
emerged. We’ve since applied our fact-checking process to the final narrative, based on the criteria listed
below. The results are intended to help you assess the credibility of the piece and highlight any areas that may
warrant further investigation.
Freshness check
Score:
10
Notes:
The narrative is based on a recent legal development, with the Ninth Circuit Court of Appeals granting an injunction on November 18, 2025, effectively halting the enforcement of California’s Senate Bill 261. This injunction is a fresh event, with no prior reports found in the search results. The article provides timely information on the legal challenge and its implications for businesses.
Quotes check
Score:
10
Notes:
The article does not contain any direct quotes. The information is presented in a summarised form, with no verbatim statements from individuals or organisations.
Source reliability
Score:
8
Notes:
The narrative originates from JD Supra, a platform that publishes articles from various law firms and legal professionals. While JD Supra is a reputable platform, the specific authors of this piece are not identified, which slightly reduces the transparency of the source. The content is informative and appears to be based on recent legal developments, but the lack of author identification warrants a cautious approach.
Plausability check
Score:
10
Notes:
The claims made in the narrative are consistent with other reputable sources. For instance, the Ninth Circuit’s injunction on SB 261 is reported by multiple legal firms and news outlets. The article provides a clear and plausible explanation of the legal situation, its implications for businesses, and the next steps in the legal process.
Overall assessment
Verdict (FAIL, OPEN, PASS): PASS
Confidence (LOW, MEDIUM, HIGH): HIGH
Summary:
The narrative provides timely and accurate information on the Ninth Circuit’s injunction halting the enforcement of California’s Senate Bill 261. The content is fresh, with no prior reports found, and aligns with information from other reputable sources. While the lack of identified authors slightly reduces the transparency of the source, the overall credibility of the narrative is high.