California’s SB 253 will require entities doing business in California with revenue greater than $1 billion to disclose their Scope 1, Scope 2, and eventually Scope 3 greenhouse gas (GHG) emissions. Disclosures for Scope 1-2 emissions will begin in 2026 for FY2025 data, with Scope 3 disclosures beginning in 2027 on FY2026 data.
Entities subject to SB 253 will also need to obtain limited assurance over their Scope 1-2 emissions, starting with the first set of disclosures in 2026. Entities are not required to obtain limited assurance over their Scope 3 GHG emission until 2030.
California’s SB 261 Climate-related Financial Risk Act requires entities doing business in California with revenues greater than $500 million to provide biannual climate-related financial risk reports and publicly disclose this report on their website. The reports must be produced in alignment with the recommendations from the Task Force on Climate-Related Financial Disclosure (TCFD), which have been incorporated into the IFRS ISSB S2.
AB 1305 enacts additional disclosure requirements for all entities operating within the state of California that buy or use voluntary carbon offsets and make climate-related claims (e.g., net zero emissions, carbon neutral, or emissions reductions).
Calculate Scope 1-2 GHG emissions inventory for a 12-month reporting period following best practices in GHG accounting.
Calculate Scope 3 GHG emissions inventory for a 12-month reporting period following best practices in GHG accounting.
Evaluate client’s GHG inventory for compliance with GHG Protocol and assurance expectations and provide feedback on areas of improvement.
Support clients in navigating third party assurance process and responding to inquiries from auditors.
Understand how client physical assets (e.g., offices, factories) will be impacted by climate change under a variety of future global warming scenarios.
Leverage scenario analysis to perform a robust assessment of client’s climate-related transition risks and identify potential opportunities for client to benefit from the transition to a low-carbon economy.
Integrate the insights gained from the Climate-Related Physical and Transition Risk Assessments into a Taskforce on Climate-Related Financial Disclosures (TCFD)-aligned report. This report will address the TCFD pillars (Governance, Strategy, and Metrics & Targets) not covered under the physical and transition risk assessments.
Chart a full path forward for compliance with California’s AB 1305 by analyzing reporting gaps and supporting client in publicly disclosing required information.