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  3. California Signs SB 53 — Frontier AI Transparency Act
enactmentSeptember 29, 2025

California Signs SB 53 — Frontier AI Transparency Act

Governor Gavin Newsom signed Senate Bill 53, the Transparency in Frontier Artificial Intelligence Act, on September 29, 2025. SB 53 follows the prior frontier-AI bill SB 1047, which Newsom vetoed in 2024. The new law focuses on transparency obligations, safety framework publication, and critical safety incident reporting, with civil penalties up to $1 million per violation enforceable by the California Attorney General.

Related: Transparency in Frontier Artificial Intelligence Act (TFAIA)

Source: www.gov.ca.gov

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This content is informational only and does not constitute legal advice. Laws change frequently and vary by jurisdiction. Consult qualified legal counsel before making compliance decisions. Information accuracy not guaranteed as of any specific date.