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CARB Finalizes Initial Rulemaking Package for SB 253 and SB 261 - Akin

Detected July 6, 2026 · in ESG & Climate Disclosure

CARB has finalized initial rulemaking for California's SB 253 and SB 261, requiring climate disclosure and assurance for large businesses operating in California.

Aforeworn detected this change in the ESG & Climate Disclosure space on July 6, 2026 and published this briefing so affected operators are forewarned rather than caught off guard. It is rated High urgency. Public companies, large private filers, sustainability consultants, EU-market exporters should confirm how it applies to their specific situation before acting. There is a time constraint attached: SB 253: First disclosure due in 2026 for 2025 data; SB 261: First biennial report due by January 1, 2026.. Acting after that point can mean penalties, a lapsed licence, or lost eligibility — exactly the kind of surprise Aforeworn exists to prevent. Aforeworn monitors ESG & Climate Disclosure continuously and turns every detected change into a plain-English briefing like this one, so you always know first. Forewarned is forearmed.

What changed

CARB's final rulemaking package establishes mandatory climate disclosure requirements under SB 253 (Climate Corporate Data Accountability Act) and SB 261 (Climate-Related Financial Risk Act), including scope 1, 2, and 3 emissions reporting and third-party assurance.

Who it affects

Public companies, large private filers, sustainability consultants, EU-market exporters

What you must do

Begin preparing GHG inventories and engage assurance providers to comply with disclosure deadlines.

Deadline

SB 253: First disclosure due in 2026 for 2025 data; SB 261: First biennial report due by January 1, 2026.

Source: https://news.google.com/rss/articles/CBMiygFBVV95cUxPWWpsVHpjQ0pkQ2ZuOUhTRzI1MzNseTdzaUFTWE5tTnh4cFZLSFBNQVR1SUtmUnNhVkJPcjBES1ozOWpUUG1vTW5ncTV4dFF2d0hxekJ4U01jeGVCMFdYZ0VZWnBkd2Y2N0ZIbkZxT3B3VW05cmlvQnNjdE0xQ216RVRaR1VGSGxhMEhrbkMzLTJxOVJMcGxyZXRVVnA3dzlaZ2NCb19zS2cxMXFGWDhLQ0ltSUFvZUFmSnZWQzRSMjJRMnpGLTJZcVp3?oc=5

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