Governor Newsom Signs SB 53, California Governor's Office

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Sep 29, 2025

# Governor Newsom signs SB 53, advancing California’s world-leading artificial intelligence industry

**What you need to know:** Governor Newsom today signed 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.

**SACRAMENTO —** Governor Newsom today signed into law Senate Bill 53, the Transparency in Frontier Artificial Intelligence Act (TFAIA), authored by Senator Scott Wiener (D-San Francisco) – legislation carefully designed to enhance online safety by installing commonsense guardrails on the development of frontier artificial intelligence models, helping build public trust while also continuing to spur innovation in these new technologies. The new law builds on recommendations from [California’s first-in-the-nation report](https://www.gov.ca.gov/2025/03/18/california-strengthens-its-position-as-the-global-ai-leader-with-new-working-report-issued-by-experts-and-academics/), called for by Governor Newsom and published earlier this year — and helps advance California’s position as a [national leader in responsible and ethical AI](https://www.gov.ca.gov/2025/09/18/californication-of-ai-golden-state-is-1-in-ai-and-the-birthplace-of-modern-tech-so-yeah-be-quiet-ted-cruz/), the world’s fourth-largest economy, the birthplace of new technology, and the top pipeline for tech talent.

#### “California has proven that we can establish regulations to protect our communities while also ensuring that the growing AI industry continues to thrive. This legislation strikes that balance. AI is the new frontier in innovation, and California is not only here for it – but stands strong as a national leader by enacting the first-in-the-nation frontier AI safety legislation that builds public trust as this emerging technology rapidly evolves.”

**Governor Gavin Newsom**

California works closely to foster tech leadership and create an environment where industry and talent thrive. The state is balancing its work to advance AI with commonsense laws to protect the public, embracing the technology to make our lives easier and make government more efficient, effective, and transparent. California’s leadership in the AI industry is helping to guide the world in the responsible implementation and use of this emerging technology.

#### “With a technology as transformative as AI, we have a responsibility to support that innovation while putting in place commonsense guardrails to understand and reduce risk. With this law, California is stepping up, once again, as a global leader on both technology innovation and safety. I’m grateful to the Governor for his leadership in convening the Joint California AI Po

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