California · SB53 · 2025 session
Artificial intelligence models: large developers.
EnactedChaptered by Secretary of State. Chapter 138, Statutes of 2025 · Sep 29, 2025
In plain language
Imposes requirements on large developers of artificial intelligence models, covering Business and Professions Code, Government Code, and Labor Code. Addresses safety, transparency, and accountability obligations for companies that develop large-scale AI systems. Primarily targets large private-sector AI developers with potential government oversight mechanisms.
Summary generated by AI from the official bill text — may contain errors. Read the official text ↗ (opens in new tab)
Legislative history
42 actions · newest first- Sep 29, 2025—Chaptered by Secretary of State. Chapter 138, Statutes of 2025.
- Sep 29, 2025—Approved by the Governor.
- Sep 23, 2025—Enrolled and presented to the Governor at 2 p.m.
- Sep 13, 2025SenateAssembly amendments concurred in. (Ayes 29. Noes 8. Page 3039.) Ordered to engrossing and enrolling.
- Sep 13, 2025SenateIn Senate. Concurrence in Assembly amendments pending.
- Sep 12, 2025AssemblyRead third time. Passed. (Ayes 59. Noes 7. Page 3432.) Ordered to the Senate.