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California Mandates Major Companies Report Emissions by 2026

2/28/2026

Summary

Story summary

California enacted climate-disclosure laws requiring large companies to report emissions starting August 2026.
Senate Bill 253 requires annual reports from companies with revenues over $1 billion, and Senate Bill 261 requires biennial reports for those over $500 million.
The California Air Resources Board (CARB) will oversee implementation, define key terms, and set a fee structure.
Initial reporting covers Scope 1 and Scope 2 emissions, though legal challenges could delay rollout.

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Story summary

California enacted climate-disclosure laws requiring large companies to report emissions starting August 2026.
Senate Bill 253 requires annual reports from companies with revenues over $1 billion, and Senate Bill 261 requires biennial reports for those over $500 million.
The California Air Resources Board (CARB) will oversee implementation, define key terms, and set a fee structure.
Initial reporting covers Scope 1 and Scope 2 emissions, though legal challenges could delay rollout.