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California AI Transparency Act.

It became law on Sep 30, 2026.

CA SB 1000 · Senate Bill · 2025–2026

Stage
Became law
Started in
Senate
Sponsor
1
Latest action
Sep 30, 2026

What it does

Existing law, the California AI Transparency Act (CATA) , beginning August 2, 2026, generally regulates provenance data disclosure in content generated by artificial intelligence (AI) , including by requiring a covered provider to make available an AI detection tool at no cost to the user that meets certain criteria. Existing law requires a covered provider to offer the user the option to include a certain manifest disclosure in image, video, or audio content, or content that is any combination thereof, created or altered by the covered provider's generative artificial intelligence (GenAI) system and requires a covered provider to include a certain latent disclosure in AI-generated image,…

Read the full textRead it on the official site

Where it stands

This bill passed and is now law.

  1. Introduced (Done)

  2. Committee (Done)

  3. Floor (Done)

  4. Law (Done)

    Sep 30, 2026

What moved

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Who is involved

Sponsors

The lawmakers who put their names on it, lead sponsors first.

In the news

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Where it goes next

Once a bill is decided, the questions are about what is done with it in California.

Work with this bill

California AI Transparency Act. | 52