California Passes Sweeping Emissions Transparency Law for Large Companies

California law requires large companies making over $1B in revenue to report emissions like those from operations, business travel, and transport.

Law aims to increase transparency and nudge companies to reduce emissions. Supporters say many already report some data.

Opponents including Chamber of Commerce say law is burdensome, duplicative if federal rules come, and tough for small businesses.

By 2025, rules must be approved; by 2026, companies report direct emissions; by 2027, other indirect emissions.

17 states have inventories for major emitters to report direct emissions. But California law is more sweeping.