California Climate Disclosure Unveiled After Initial Public Workshop Held by CARB
**California Pushes Forward with Landmark Climate Disclosure Laws**
California is leading the way in corporate climate transparency with the implementation of the Climate Corporate Data Accountability Act (SB 253) and the Climate-Related Financial Risk Act (SB 261). The California Air Resources Board (CARB) is overseeing the regulatory rulemaking process for these landmark climate disclosure laws.
**Key Reporting Requirements and Timelines**
SB 253 mandates annual disclosure of Scope 1 and 2 greenhouse gas (GHG) emissions for companies with over $1 billion in annual revenue operating in California. Reporting for Scope 3 emissions commences in 2027. SB 261 requires climate-related financial risk disclosures, with reports due in January 2026 and every second year thereafter.
| Act | Reporting Focus | Start Date | Reporting Frequency | Assurance Requirements | |------|-----------------|------------|--------------------|------------------------| | **SB 253** | Annual disclosure of Scope 1 and 2 GHG emissions | 2026 (FY 2025 data) | Annual | Limited assurance required initially for Scope 1 & 2 (until 2029); reasonable assurance mandated from 2030 onward. Assurance requirements for Scope 3 emissions to be determined by CARB. | | **SB 261** | Climate-related financial risk disclosures | January 2026 and every two years thereafter | Biennial | Not explicitly specified, but alignment encouraged with TCFD or ISSB frameworks |
These laws require disclosures that adhere to existing recognized standards such as the Greenhouse Gas Protocol for emissions and the TCFD or ISSB for climate-related financial risk, helping create practical, actionable, and standardized corporate climate disclosures.
**Implementation and Rulemaking Updates**
CARB has been granted an extension to July 1, 2025, to finalize official disclosure requirements for SB 253 but aims to release draft regulations by the end of 2025. The rulemaking process might extend up to a year, potentially delaying finalized rules until late 2026.
Despite discussions and proposals for delayed implementation, statutory deadlines remain firm, emphasizing that companies need to prepare based on FY 2025 data for 2026 reporting. CARB published guidance in July 2025 clarifying compliance steps and confirmed the public docket for submitting SB 261 reports will remain open until July 1, 2026, enhancing transparency for stakeholders.
**Stakeholder Feedback and Considerations**
Industry discussions during CARB’s May 2025 public workshop highlighted the necessity to align with global frameworks and the importance of early preparation given the tight timelines. Some concerns were raised around the pace of regulatory finalization and companies’ readiness, but the state has maintained that delaying preparations could cause compliance issues.
The penalties for non-compliance under SB 253 can be substantial, with fines up to $500,000 per reporting year, putting additional pressure on companies to meet the strict requirements.
In conclusion, companies with over $1 billion in annual revenue operating in California must start reporting their Scope 1 and 2 emissions by early 2026 with limited assurance and add Scope 3 emissions reporting in 2027. Climate risk disclosures under SB 261 are due in January 2026 and biennially thereafter. CARB is finalizing rules through to the end of 2026 but maintains firm reporting deadlines, urging companies to prepare now to avoid compliance risks.
[1] California Air Resources Board (CARB). (2023). SB 253: Climate Corporate Data Accountability Act. Retrieved from https://www.arb.ca.gov/cc/sc scope3/sb253/sb253
[2] California Air Resources Board (CARB). (2023). SB 261: Climate-Related Financial Risk Act. Retrieved from https://www.arb.ca.gov/cc/sc scope3/sb261/sb261
[3] California Air Resources Board (CARB). (2023). SB 253 and SB 261: Key Dates and Requirements. Retrieved from https://ww2.arb.ca.gov/cc/sc scope3/key-dates-requirements
[4] California Air Resources Board (CARB). (2025). SB 261: Climate-Related Financial Risk Act - Reporting Guidance. Retrieved from https://www.arb.ca.gov/cc/sc scope3/sb261/reporting-guidance
- In the realms of both environmental-science and science, the Climate Corporate Data Accountability Act (SB 253) and the Climate-Related Financial Risk Act (SB 261) are at the forefront of corporate sustainability, focusing on climate-change disclosures in California.
- Companies with annual revenues exceeding $1 billion, operating in California, need to report their Scope 1 and 2 greenhouse gas emissions annually from 2026 onwards, as mandated by SB 253, following the Greenhouse Gas Protocol.
- Under SB 261, climate-related financial risk disclosures, in line with the TCFD or ISSB frameworks, are due in January 2026 and every second year thereafter.
- Businesses should pay heed to technology and finance, as non-compliance with SB 253 can result in substantial fines, up to $500,000 per reporting year.
- As education-and-self-development necessitates staying informed, interested parties can find guidance on SB 253 and SB 261 from the official California Air Resources Board websites.
- Sports enthusiasts and those following general-news might appreciate knowing that California is leading the way in corporate transparency concerning climate-change, setting precedents for other states and even nations to follow.
- For investors concerned about personal-finance and wanting to make environmentally responsible decisions, understanding the climate disclosures of businesses operating in California, as prescribed by SB 253 and SB 261, could prove crucial in their investing lifestyle.
