California Senate Bill 53 (Frontier AI Models) — Full Text
Official text of California Senate Bill 53 (2025–2026 session), which adds transparency and incident-reporting duties for developers of large frontier artificial intelligence models — amending the Business and Professions Code (new Chapter 25.1, commencing with Section 22757.10), the Government Code (Section 11546.8) and the Labor Code (new Chapter 5.1, commencing with Section 1107). Registered with the Secretary of State on 29 September 2025.