California SB 53 / AB 853
Current chainCheck registry fields for California SB 53. Review the source authority and qualified legal counsel before relying on this page for a compliance decision.
California's SB 53 (Transparency in Frontier Artificial Intelligence Act) took effect 1 January 2026. It requires large frontier AI developers — those with annual gross revenues above $500 million — to publish and maintain a frontier AI framework describing how they assess and mitigate catastrophic risks (defined to include foreseeable, material risks of mass casualties or $1B+ in damage), alongside critical-incident reporting and whistleblower protections. Separately, AB 853 (California AI Transparency Act) extends AI content-provenance obligations: baseline duties from 2 August 2026, generative-AI hosting platforms and large online platforms (2M+ monthly users) from 1 January 2027, and capture-device manufacturers from 1 January 2028, with penalties of $5,000 per violation, each day counting separately.
This summary was verified against the cited primary and authoritative sources on the retrieval date shown and is provided for general information only — it is not legal advice. Regulations change; confirm current requirements with counsel.
- A&O Shearman — California AI landscape entering 2026 · Retrieved 2026-08-03
- CA Legislature — AB 853 text · Retrieved 2026-08-03
- Status
- active
- Minimum plan
- pilot