Governor Gavin Newsom signed Senate Bill 1000, introduced by Senator Josh Becker, on 30 September 2026, in a group of artificial intelligence and employment bills announced by the Governor's office the same day. SB 1000 had passed both chambers of the California Legislature in late August 2026 and was awaiting signature, so the bill has now moved from enrolled to enacted and the amendments it carries are law.
SB 1000 amends the California AI Transparency Act, which sits in the Business and Professions Code at sections 22757.1 and following and was enacted by Senate Bill 942. The amendment deletes the one million average monthly user threshold from the covered provider definition, so a developer of a publicly accessible generative AI system is a covered provider whatever its user numbers. It replaces the free AI detection tool duty with a duty to make available a disclosure verification tool, and it reaches content that a generative AI system has materially modified as well as content the system generated.
Developers of publicly accessible image, audio and video generation products available to California residents fall inside the covered provider definition from enactment. Smaller text to image services, voice cloning services and video generation services that sat below the one million user line under SB 942 lose that position and acquire the full set of duties. Providers that built SB 942 detection tools face engineering work to move from after the fact detection of their own outputs to a verification tool that a user can run against a file, and model distribution teams face contract work on licence terms.
The Assembly Committee on Privacy and Consumer Protection analysis of the bill records that latent disclosure duties bind only to the extent technically feasible, that a provider may direct users to a compatible third party verification tool in place of its own, and that a licence must be revoked within 72 hours of the provider finding that a licensee has stripped out the latent disclosure capacity. The same analysis records exclusions for video game, television, streaming and film platforms carrying only content that their users did not generate.
Licentium advises generative AI developers, model licensors and platform operators on disclosure and labelling duties under United States state law. Work we undertake includes California AI Transparency Act readiness reviews, assessment of product and interface design against disclosure verification duties, drafting of model licence terms that preserve disclosure capacity, and monitoring of state artificial intelligence legislation across the United States.