California Corporate Greenhouse Gas (GHG) Reporting and Climate Related Financial Risk Disclosure Programs

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Climate Change
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Industrial Strategies Division

The California Corporate Greenhouse Gas Reporting Program, authorized by Senate Bill (SB) 253 (Wiener, 2023) is being developed by the California Air Resources Board (CARB) and will require business entities formed under the laws of California, the laws of any other state of the United States or the District of Columbia, or under an act of the Congress of the United States, with total annual revenues in excess of one billion dollars ($1,000,000,000) that do business in California (“reporting entities”) to annually disclose their scope 1, 2 and 3 emissions for the prior fiscal year. The initial annual emissions disclosures are required to address scope 1 and 2 emissions with third-party limited assurance requirements and in subsequent years must include scope 3 emissions. The Climate Related Financial Risk Disclosure Program authorized by SB 261 (Stern, 2023) also applies to both public and private U.S. companies that do business in California with annual revenues of $500 million. This program is also currently under development by CARB and will require companies to publish biennial climate-related financial risk reports.
More about this program

Virtual Public Workshop

The California Air Resources Board held a virtual public workshop to support the development of California’s Corporate Greenhouse Gas Reporting Program, established by Senate Bill (SB) 253 (Wiener, 2023), and the Climate-Related Financial Risk Disclosure Program, authorized by SB 261 (Stern, 2023). SB 219 (Wiener, 2024) amended both programs, extending certain deadlines and implementing other administrative changes. The workshop included an overview of the above-mentioned legislation, a timeline for regulatory development, and an overview of feedback received from stakeholders from our December 2024 California Climate-Disclosure Information Solicitation. Additional presentations will include a comparative analysis of greenhouse gas accounting and reporting mechanisms that currently exist across various regulatory and voluntary programs.

The workshop was held virtually on:

Date: Thursday, May 29, 2025
Time: 9:30 am – 12:30 pm (Pacific Time)

Workshop Recording (posted 6/2/25)

Public Notice

CARB Presentation Slides (posted 5/28/25)

Montrose Environmental Presentation Slides (posted 5/28/25)

UCLA Presentation Slides (posted 5/29/25)

California Climate-Disclosure Information Solicitation (Dec 2024)

The California Air Resources Board solicited feedback to help inform its work to implement SB 253 (Wiener, Statutes of 2023) and 261 (Stern, Statutes of 2023), both as amended by SB 219 (Wiener, Statutes of 2024).

Enforcement Advisory (Dec 2024)

CARB Releases Enforcement Advisory on 12/5/2024.