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Home/Bills/AB 853California · 2025–2026 Regular Session
Assembly BillChaptered/SignedBusiness and Professions

AB 853: California AI Transparency Act.

California · Assembly · 2025–2026 Regular Session · last verified December 7, 2025

What AB 853 does, verified December 7, 2025

The California AI Transparency Act requires certain entities to provide transparency about their artificial intelligence systems. A person creating a generative AI system with over 1 million monthly visitors must provide an AI detection tool that allows users to assess whether content was created or altered by the AI system. The AI detection tool must also output system provenance data detected in the content. The bill delays the operation of the transparency act until August 2, 2026, and requires large online platforms to detect whether content embedded with compliant provenance data is distributed on their platform. Starting January 1, 2028, capture device manufacturers must provide users with the option to include a latent disclosure in content captured by their devices, conveying certain information such as the device's name. Additionally, the bill prohibits genai system hosting pla…

Bill journey
IntroducedComplete
In CommitteeComplete
First Chamber FloorComplete
Second ChamberComplete
GovernorComplete
6ChapteredCurrent
Last action: Chaptered by Secretary of State - Chapter 674, Statutes of 2025. (2025-10-13)Alert me
Recent actions34 total · showing 5
Oct. 13, 2025Chaptered by Secretary of State - Chapter 674, Statutes of 2025.
Oct. 13, 2025Approved by the Governor.
Sep. 24, 2025Enrolled and presented to the Governor at 3 p.m.
Sep. 12, 2025Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 60. Noes 4. Page 3381.).
Sep. 12, 2025Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 60. Noes 4.).
Full action history, 29 earlier actionsConnect Plus
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