California Governor Gavin Newsom signs SB 53 into law; the first-in-the-nation AI safety law requires AI companies to disclose their safety testing regimes
“California has proven that we can establish regulations to protect our communities while also ensuring that the growing AI industry continues to thrive.
Politico Chase DiFeliciantonio
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Discussion
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@collin_mccune
Collin McCune
on x
We're fighting for a national AI strategy that gives Little Tech a fair shot and keeps the U.S. in the lead. CA's AI bill (SB 53) includes some thoughtful provisions that account for the distinct needs of startups. But it misses an important mark by regulating how the technolog…
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@miles_brundage
Miles Brundage
on x
Congrats to all who made SB 53 happen! Dunno how big, small, etc., but it is *a* step forward, and one I hope Congress builds on. Plus it had the added benefit of helping clarify who is interested in well-designed policies vs. talking about the need for well-designed policies.
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@sen_gounardes
State Senator Andrew Gounardes
on x
Well, I'm bummed California beat us to the punch, but inspired because this proves commonsense AI safeguards are possible. @AlexBores and I introduced the RAISE Act here in New York to ensure advanced AI makes life better, not put it at risk. It's time to sign it into law.
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@thomas_woodside
Thomas Woodside
on x
Thank you to the authors of the California Report on Frontier AI Policy! Their important work made SB 53 possible. [image]
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@scott_wiener
Senator Scott Wiener
on x
SB 53 doubles down on California's role as global AI innovation leader & ensures we also lead globally on AI safety. It's an exciting step for responsible scaling of AI innovation. I'm grateful to the Governor & our coalition, including @EncodeAction, @ESP_Action & Secure AI.
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@cagovernor
Governor Gavin Newsom
on x
Today, I'm signing legislation to install common-sense guardrails ensuring the safety and further development of cutting-edge AI systems. California is proving that it's possible to both protect people and ensure our state's growing industries continue to shape the future.
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@thomas_woodside
Thomas Woodside
on x
THANK YOU @GavinNewsom and @Scott_Wiener! A momentous day for California.
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@thewendylee
Wendy Lee
on x
Newsom signs AI transparency bill prioritizing safety https://www.latimes.com/...
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@alexbores
Alex Bores
on x
Congratulations to @Scott_Wiener, @GavinNewsom, and all of California for passing SB53, which will for the first time in the US require safety standards for advanced AI research. 🧵
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@govpressoffice
@govpressoffice
on x
DIG DEEPER: #SB53 establishes new requirements for frontier AI developers creating stronger: ✅ Transparency: Requires large frontier developers to publicly publish a framework on its website describing how the company has incorporated national standards, international standards, …
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@tituswu100
Titus Wu
on x
Gov. Newsom signs #SB53, which means #AI developers will have to disclose their safety policies among other protections against catastrophic risks https://news.bloomberglaw.com/ ...
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@jackclarksf
Jack Clark
on x
While we believe that frontier AI safety is best addressed at the federal level instead of a patchwork of state regulations, powerful AI advancements won't wait for consensus in Washington. SB53 should serve as a powerful example for other states and Congress.
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@jackclarksf
Jack Clark
on x
We applaud @CAgovernor for signing @Scott_Wiener's SB 53, establishing transparency requirements for frontier AI companies that will help us all have better data about these systems and the companies building them. Anthropic is proud to have supported this bill.
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@shiringhaffary
Shirin Ghaffary
on x
Gov. Newsom just signed CA Sen Wiener's AI transparency bill, SB 53, requiring AI companies w/ over $500m in rev to disclose safety protocols + creating protections for AI whistleblowers. Much less industry pushback on this than Wiener's previous AI liability bill, SB 1047
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@scott_r_singer
Scott Singer
on x
Today, CA Gov. Gavin Newsom signed SB-53 into law—the first in the U.S. explicitly focused on frontier AI policy. The bill draws directly on the policy principles we outline in the CA Report on Frontier AI Policy, for which I served as lead writer alongside @RishiBommasani.
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@ctatech
@ctatech
on x
CTA is disappointed to see California rush into AI legislation. SB 53 is not the right approach. The U.S. needs a national framework to lead in AI, not a state patchwork. https://cta.tech/...
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@govpressoffice
@govpressoffice
on x
JUST IN: @CAGovernor Gavin Newsom signed #SB53, legislation further establishing California as a world leader in safe, secure, and trustworthy artificial intelligence — creating a new law that helps the state both boost innovation and protect public safety.
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@zachreports
Zach Williams
on x
So much for NY being first state to regulate Frontier AI models ... Newsom signed a measure in California. New York bill has yet to be sent to Hochul https://www.gov.ca.gov/...
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@scott_wiener
Senator Scott Wiener
on x
BREAKING: Governor @GavinNewsom just signed our groundbreaking AI bill, SB 53, to promote AI innovation (creating a public cloud called CalCompute), require transparency around AI lab safety practices & protect whistleblowers at AI labs who report risk of catastrophic harm. 🧵
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@attorneynora
Nora Benavidez
on bluesky
California is leading the way on regulating tech & AI, passing the most significant AI law in the country. We know tech is too big to regulate itself, and this is a critical step towards more responsible innovation to protect digital rights & expression: www.gov.ca.gov/2025/09/2…
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r/California
r
on reddit
Gavin Newsom signs first-in-nation AI safety law
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r/technology
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on reddit
Gavin Newsom signs first-in-nation AI safety law
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r/sanfrancisco
r
on reddit
Governor Newsom just signed into law our AI safety & innovation bill, SB 53.