California AI Transparency Act: from SB 942 to SB 1000
California's AI provenance law was signed in 2024, delayed to August 2026 and rewritten a few weeks after it started. Every step and what it changed.
4 steps · Updated
California signed SB 942 in 2024, and AB 853 moved its start to August 2, 2026. Less than two months after it began, SB 1000 deleted the user threshold, so any generative AI provider reachable in California now owes hidden disclosures in image, video and audio files and a free verification tool.
The timeline
What to watch next
No dated next step is on record yet. We add one here when an agency, court or legislature sets a date.