California Passes AI Safety Law: SB 53 Mandates Public Disclosure of Security Protocols by Major AI Companies

Web Editor

September 29, 2025

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Background on the Legislation and Key Players

California Governor Gavin Newsom signed groundbreaking legislation, SB 53, which requires the world’s largest artificial intelligence (AI) companies to publicly disclose their security protocols and report critical incidents. This law aims to foster innovation while safeguarding public security.

The legislation is one of California’s significant measures to regulate the rapidly advancing AI industry in Silicon Valley. It also helps maintain California’s status as a global technology hub.

State Senator Scott Wiener, the bill’s proponent, stated, “With transformative technology like AI, we have a responsibility to support innovation while implementing sensible security measures.”

Legislative History and Industry Pushback

SB 53 marks Wiener’s successful second attempt at establishing AI security regulations after Governor Newsom vetoed the previous proposal due to fierce opposition from the tech industry.

This legislative effort comes after a failed attempt by the Trump administration to prevent states from regulating AI, arguing that such regulations would create regulatory chaos and slow down US innovation in a race against China.

Key Provisions of SB 53

The new law mandates that major AI companies publicly disclose their security protocols and intellectual property protection measures.

  • Whistleblower protections for employees who reveal evidence of security risks or violations
  • Reporting requirements for instances where AI systems exhibit dangerous or deceptive behavior during testing

For example, if an AI system falsely claims that safety controls prevent the provision of assistance for building biological weapons, developers must disclose the incident if it significantly increases the risk of catastrophic damage.

Expert Involvement in Crafting the Legislation

The task force behind this legislation was led by prominent experts, including Fei-Fei Li from Stanford University, known as the “godmother of AI.”

Key Questions and Answers

  • What is SB 53? SB 53 is a California law that requires major AI companies to publicly disclose their security protocols and report critical incidents.
  • Who are the key players involved? Governor Gavin Newsom, State Senator Scott Wiener, and AI researcher Fei-Fei Li from Stanford University.
  • Why was SB 53 passed? To foster innovation while safeguarding public security and maintaining California’s position as a global technology hub.
  • What are the key provisions of SB 53? Public disclosure of security protocols and intellectual property protection measures, whistleblower protections, and reporting requirements for dangerous AI system behavior during testing.