California AI Transparency Act: platforms (AB 853, AB 2713)
Keep provenance data and signatures; show users if content is AI-made or camera-made and let them inspect it.
In short
- Where: California, United States
- Status: Passed; applies from 1 January 2027; capture devices sold in California by 1 January 2028
- Who: Platforms over 2M monthly users, GenAI hosting sites, device makers
- Covers: Platforms only
- Kennmarq.com: covers images and video today; audio: waits for spoken notices in audio (expected December 2026).
Updated 4 November 2026; source checked 4 November 2026. Sources are government sites. This page explains what Kennmarq.com does; it isn't legal advice.
What it asks of each kind of file
| File | What it asks | Kennmarq.com today |
|---|---|---|
| Images | machine-readable marks (a watermark or metadata); a visible label | Covered |
| Video | machine-readable marks (a watermark or metadata); a visible label | Covered |
| Audio | machine-readable marks (a watermark or metadata); a label | Waits for spoken notices in audio (expected December 2026) |
In the API
A rule for platforms only: markets=us-ca applies the United States' general rules in force or passed, not this one (what a call for the United States needs). The table above shows what our marks add of what it asks.
Official text
- AB 853 (ch. 674, Stats. 2025)
- AB 2713 (ch. 856, Stats. 2026)
- Governor of California, signing of SB 1000 and AB 2713 (30 September 2026)