Jurisdiction

California

California regulates frontier AI developers through state statute alongside federal and local rules.

Policy approach

Current structure

State legislation such as the Transparency in Frontier Artificial Intelligence Act sets publication, incident-reporting and civil-penalty duties for covered frontier developers.

Policy questions

Policy asks

in-force

Require large frontier developers to publish catastrophic-risk safety frameworks

Require covered large frontier developers to write, implement, comply with and publish a frontier AI framework covering catastrophic-risk assessment, mitigations and related disclosures.

Policy vehicles

regulation · In force

California SB 53 · Transparency in Frontier Artificial Intelligence Act

Chaptered California statute requiring large frontier developers to publish frontier AI frameworks, transparency reports and critical-incident pathways.

Policy timeline

Events and deadlines

2025-09-29
California SB 53 chaptered into law
SB 53 was approved by the Governor and chaptered as Chapter 138, Statutes of 2025.
2026-01-01
California frontier AI transparency duties take effect
Chapter 25.1 of the Business and Professions Code became effective.