What California Assembly Bill 853 of 2025 - AI Transparency Act Amendments and Manifest and Latent Disclosure Obligations requires
California Governor Gavin Newsom signed AB 853 on 13 October 2025, delaying the operation of the California AI Transparency Act from 1 January 2026 to 2 August 2026 (to align with the EU AI Act), expanding the responsibilities of GenAI system creators to large online platforms, GenAI source code and product distributors, and capture device manufacturers, requiring that a GenAI hosting platform from 1 January 2027 not knowingly make available a GenAI system unless it provides users with the option to include a manifest disclosure that the content was AI-generated and includes a latent disclosure conveying certain information of the GenAI system's CAITA compliance, and imposing capture-device latent disclosure obligations on devices produced for sale in California from 1 January 2028.
Pillar: AI Governance & Law · Authority: California State Legislature / California Privacy Protection Agency · Version: 1.0.0 · Last updated:
Primary source: https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202520260AB853
SHA-256 integrity: 04215a963a59a86f78e2801ff175515639c3bfb05a5029826a42523455f0ea10
Primary Citations — 6 traced to source
- AB 853 (California, 2025): California AI Transparency Act amendments, signed by Governor Gavin Newsom on 13 October 2025.
- AB 853 delays the operation of the California AI Transparency Act from 1 January 2026 to 2 August 2026 (the operative date is extended to align with the EU AI Act, although new provisions have delayed effective dates).
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- Canonical URL: https://bidda.com/intelligence/us-ca-ab-853-ai-transparency-act-amendments-2025
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