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California SB 261: A Quick Guide to The Climate-Related Financial Risk Act

California SB 261
Category
Blog
Last updated
March 26, 2025

California continues to lead the way in climate legislation with the introduction of SB 261, the Climate-Related Financial Risk Act. This law mandates large businesses, including any business entity formed such as partnerships, corporations, and limited liability companies, as well as any other business entity with significant annual revenues conducting business within California, to publicly disclose the financial risks posed by climate change and outline the strategies they are implementing to mitigate these risks.

With its broad scope and emphasis on transparency, SB 261 will impact thousands of companies doing business in California. Understanding its requirements and implications is crucial for organizations to maintain compliance and prepare for the transition to a low-carbon economy.

SB 261 is a landmark climate disclosure law that requires large businesses operating in California to prepare and publish biannual climate related disclosures, specifically focusing on climate risks. These reports must detail the physical and transition risks associated with climate change and the steps companies are taking to address these risks.

The law is designed to provide investors, consumers, and policymakers with a clearer understanding of the financial threats businesses face due to climate change. It also aims to encourage companies to integrate climate resilience strategies into their long-term financial planning.

Which businesses are covered by SB 261?

SB 261 applies to U.S.-based corporations, partnerships, and limited liability companies that meet the following criteria as reporting entities:

  • Conduct business in California (which includes companies with financial transactions, headquarters, or significant operations in the state)
  • Have annual revenues exceeding $500 million USD

This revenue threshold is lower than that of SB 253, which applies to companies with revenues over $1 billion. As a result, SB 261 is expected to impact a significantly larger number of reporting entities, with estimates suggesting that over 10,000 companies will be subject to compliance.

What is the timeline for implementation?

SB 261 follows a clear timeline for businesses to prepare for and comply with its reporting requirements:

  • January 1, 2026 – Companies must submit their first climate-related financial risk report
  • Every two years thereafter – Companies must continue to submit updated related financial risk reports on their climate-related financial risks and mitigation strategies

These reports must be publicly available on the company’s website and follow the Task Force on Climate-Related Financial Disclosures (TCFD) framework to ensure consistency and comparability.

What are the key requirements of SB 261?

To comply with SB 261, businesses must:

  • Identify and disclose climate-related financial risks in accordance with TCFD recommendations
  • Report on specific mitigation strategies implemented to reduce and adapt to identified risks
  • Publish the report publicly on the company’s website
  • Submit a statement to the California Secretary of State confirming that the company has disclosed its climate-related financial risks
  • Be aware that submitting an inadequate or insufficient report can result in administrative penalties and highlight the need for rigorous compliance

The California Air Resources Board (CARB) will contract with a non-profit climate reporting organization to analyze the submitted reports, assess their adequacy, and provide insights into systemic risks and sector-specific vulnerabilities.

What are the other California climate laws?

SB 261 is part of a broader legislative effort to enhance corporate climate accountability in California. Other key laws include the Voluntary Carbon Market Disclosures Act (AB 1305), which requires companies to disclose relevant carbon market activities as part of their climate-related corporate accountability practices.

SB 253 – The Climate Corporate Data Accountability Act

SB 253 requires large businesses (over $1 billion in annual revenue) to disclose their greenhouse gas (GHG) emissions, including Scope 1, Scope 2, and Scope 3 emissions. The first reports will be due in 2026 (Scope 1 and 2) and 2027 (Scope 3).

AB 1305 – Carbon Market Disclosure

This law, effective January 1, 2024, enhances transparency in voluntary carbon markets by requiring businesses that make carbon neutrality claims to disclose their emissions and carbon offset use.

SB 54 – Venture Capital Diversity Reporting

Amended in June 2024, this law mandates venture capital firms to report on the demographic diversity of their investments, further reinforcing California’s commitment to corporate transparency and accountability.

How can businesses prepare?

To ensure compliance with SB 261 and avoid penalties, businesses should take the following steps:

1. Conduct a climate risk assessment

Identify physical risks (e.g., extreme weather events, rising sea levels) and transition risks (e.g., regulatory changes, shifts in consumer demand) related to climate change.

Assess the potential financial impact of these risks on business operations, supply chains, and investment strategies.

2. Establish a sustainability governance framework

Form a climate risk committee within the organization to oversee risk assessment and reporting.

Assign executive-level responsibility for sustainability and climate-related financial disclosures.

3. Align reporting with TCFD guidelines

Use the Task Force on Climate-Related Financial Disclosures (TCFD) framework to structure climate-related risk assessments and reports.

Integrate climate risk disclosures into existing sustainability and financial reports to maintain consistency.

4. Invest in climate risk management solutions

Utilize climate modeling tools and risk assessment software to improve data accuracy.

Engage with third-party auditors to ensure credibility in reporting.

5. Stay updated on CARB guidance

Monitor updates from the California Air Resources Board (CARB) and the Climate-Related Risk Disclosure Advisory Group for changes in reporting requirements and best practices.

Participate in public consultations and industry discussions to stay informed on emerging compliance trends.

Looking ahead

SB 261 represents a significant step toward mandatory climate risk disclosure for businesses operating in California. By requiring biennial reporting on climate-related financial risks, the law aims to enhance transparency, protect investors and consumers, and drive corporate climate action, while addressing the issue of inadequate or insufficient reports.

Businesses must act now to prepare for the January 1, 2026 deadline, ensuring they have the right processes, governance structures, and reporting frameworks in place. As California continues to set the standard for corporate climate accountability, companies that proactively comply with SB 261 will be better positioned to navigate regulatory challenges and strengthen their long-term resilience in a rapidly evolving economy.

Sweep can help

Sweep is a carbon and ESG management platform that empowers businesses to meet their sustainability goals.

Using our platform, you can:

  • Conduct a thorough assessment of your carbon footprint.
  • Get a real-time overview of your supply chain and ensure that your suppliers meet your sustainability targets.
  • Reach full compliance with the CSRD and other key ESG legislation in a matter of weeks.
  • Ensure your sustainability information is reliable by having it verified by a third party before going public.
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