Scott Wiener
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Scott Wiener is a California state senator whose AI legislative work includes SB 1047 in the 2023–2024 session and SB 53 in the 2025–2026 session. The former was vetoed; the latter was signed into law on September 29, 2025. His profile concerns these legislative efforts and related policy advocacy.[1][2][3][4]
Role and jurisdiction
Wiener's office identifies him as a Democratic senator representing San Francisco. His work on frontier-AI legislation concerns obligations on developers, safety information and accountability under California law. His office's descriptions of the merits of his proposals are statements of his position; the official bill texts establish what the measures contain.[4][3]
Contributions and positions
SB 1047: proposal and veto
SB 1047 proposed the Safe and Secure Innovation for Frontier Artificial Intelligence Models Act. Its final text addressed developer precautions, safety protocols and other requirements for covered models, as well as a proposed public computing initiative. It was a legislative proposal and did not become law.[1][2]
Governor Gavin Newsom vetoed SB 1047 on September 29, 2024. The governor's announcement argued that the measure did not provide a sufficiently flexible and comprehensive response to risk and announced further work with AI-policy experts. The disagreement therefore concerned the design and scope of regulation, rather than a simple choice between any safeguards and none. The veto is a material outcome of Wiener's legislative effort and belongs alongside his advocacy for the bill.[2]
SB 53: enacted transparency requirements
SB 53 became Chapter 138 of the Statutes of 2025. It enacted the Transparency in Frontier Artificial Intelligence Act, with requirements concerning frontier-AI frameworks, transparency reports and critical safety incidents. The legislation also provides protections for covered employees reporting specified risks or violations and establishes a conditional process for developing a CalCompute framework. The statute distinguishes frontier developers from large frontier developers and assigns some duties specifically to the latter.[3]
Wiener's signing announcement presents SB 53 as a way to combine transparency and whistleblower protection with continued innovation. That characterization explains the author's rationale; the chaptered text, rather than the announcement's promotional language, controls the description of the legislation. SB 53 should also be distinguished from the vetoed SB 1047 rather than described as if the earlier bill itself was enacted.[4][3]
Proposed industry pacing agreement
On September 4, 2026, Wiener's office announced a joint call for frontier-AI laboratories to negotiate a Mutually Agreed Pacing Framework. The signatories included Wiener, Alex Bores, Daniel Didech, Andrew Gounardes and Mary Edly-Allen. The proposal called for independent verification and was presented as an industry initiative alongside government action. The announcement documents a request for an agreement, not evidence that the laboratories accepted it or that it became binding law.[5]
Selected legislative and policy records
- SB 1047 (2023–2024) — Official final bill text; vetoed proposal, to be read with the governor’s veto announcement.[1]
- SB 53 (2025–2026) — Official chaptered text, Chapter 138 of the Statutes of 2025.[3]
- Call for a Mutually Agreed Pacing Framework (September 4, 2026 announcement) — Joint policy advocacy announced by Wiener’s office; not an enacted measure.[5]
News and coverage
- September 4, 2026 — State lawmakers call for a frontier-AI pacing framework. The wiki digest covers the announcement and links the underlying joint statement.[5]
- September 29, 2025 — SB 53 signing announcement. Statement from the bill author's office.[4]
Related articles
- United States policy on catastrophic AI risk
- California AI Law
- United States State Legislation
- Legislation and Regulation
References
- ↑ 1.0 1.1 1.2 California Legislative Information, SB 1047 (2023–2024), final bill text. Accessed September 7, 2026.
- ↑ 2.0 2.1 2.2 Office of Governor Gavin Newsom, Governor Newsom announces new initiatives to advance safe and responsible AI, protect Californians, September 29, 2024. Accessed September 7, 2026.
- ↑ 3.0 3.1 3.2 3.3 3.4 California Legislative Information, SB 53 (Wiener), Chapter 138, Statutes of 2025, approved September 29, 2025. Accessed September 7, 2026.
- ↑ 4.0 4.1 4.2 4.3 Office of Senator Scott Wiener, announcement of SB 53 signing, September 29, 2025. Accessed September 7, 2026.
- ↑ 5.0 5.1 5.2 Office of Senator Scott Wiener, Lawmakers Behind State AI Safety Laws Call For Industry-Wide AI Safety Pact to Protect the Public, September 4, 2026. Accessed September 7, 2026.