Last updated: · 3 min read
What Is SB 261?
The Climate-Related Financial Risk Act (Senate Bill 261), signed into law in October 2023, requires large companies doing business in California to prepare and publish climate-related financial risk reports aligned with the Task Force on Climate-related Financial Disclosures (TCFD) framework.
While SB 253 focuses on emissions data, SB 261 addresses the financial risks that climate change poses to businesses — physical risks from extreme weather and chronic changes, and transition risks from the shift to a low-carbon economy.
Who It Applies To
SB 261 applies to entities that:
- Have total annual revenues exceeding $500 million (lower threshold than SB 253)
- Do business in California per Franchise Tax Board definitions
This covers a broader set of companies than SB 253, including many mid-size companies that wouldn't meet the $1 billion threshold.
Key Requirements
Companies must publish biennial reports (every two years) disclosing:
Governance: Board and management oversight of climate-related risks and opportunities
Strategy: Climate-related risks and opportunities the company has identified over the short, medium, and long term, including their impact on business, strategy, and financial planning. Scenario analysis is expected per TCFD guidance.
Risk management: Processes for identifying, assessing, and managing climate-related risks, and integration with overall risk management
Metrics and targets: Metrics used to assess climate-related risks and opportunities, GHG emissions data, and targets
Reports must be published on the company's website and made publicly accessible.
Timeline
- October 2023: SB 261 signed into law
- 2024: CARB begins implementing regulations
- 2026: First biennial reports due (covering FY2025 climate-related financial risks)
- Reports due biennially thereafter
Compliance Steps
- Assess applicability: Confirm revenue threshold and California business presence
- Familiarize with TCFD: Review TCFD recommendations and implementation guidance
- Governance setup: Document board and management climate risk oversight structures
- Climate risk assessment: Conduct comprehensive assessment of physical and transition risks
- Scenario analysis: Develop at least two climate scenarios (low-warming and high-warming)
- Financial impact quantification: Estimate financial impacts of identified risks
- Draft TCFD-aligned report: Prepare disclosure covering all four TCFD pillars
- Publish: Make the report publicly available on your website and submit to CARB
Penalties
- Administrative penalties up to $50,000 per reporting year for non-compliance
- No private right of action
- CARB enforcement through administrative proceedings
How Council Fire Can Help
Council Fire conducts TCFD-aligned climate risk assessments that satisfy SB 261 requirements while providing genuine strategic value. We combine climate science, financial analysis, and scenario modeling to create reports that meet regulatory expectations. Contact us for SB 261 compliance support.

See how we've done this
Regional Bank Implements TCFD ReportingA $28B-asset bank implemented TCFD-aligned climate risk disclosure.
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