Regulation, Law & GovernanceGovernor of California
California governor signs SB 53 (TFAIA), the frontier AI transparency law
SB 53 (Transparency in Frontier Artificial Intelligence Act, TFAIA) signed — date of signing. Framework disclosure, reporting of critical safety incidents, whistleblower protections, civil penalties enforced by the AG, and the creation of CalCompute
Why it matters
Passed one year after the SB 1047 veto, scaled back to focus on transparency. It went on to compel each lab to publish its framework
Source — Primary sources first; secondary reports are labelled “Press”
Governmentgov.ca.govhttps://www.gov.ca.gov/2025/09/29/governor-newsom-signs-sb-53-advancing-californias-world-leading-artificial-intelligence-industry/Added in Week 35, 2026 · See that week