CA AB2713: California AI Transparency Act: system provenance data.

In one paragraph

California's AB 2713 rewrites the large-online-platform duties of the California AI Transparency Act (Bus. & Prof. Code § 22757.3.1). From January 1, 2027, large online platforms must detect provenance data on content they distribute, show in their interface whether system provenance data or a digital signature identifies content as generated or substantially altered by a generative AI system or captured by a camera or other capture device, and let users inspect that data. They may not, to the extent technically feasible, knowingly strip it. Only data compliant or interoperable with widely adopted standards is covered. Signed September 30, 2026 (Chapter 856); effective January 1, 2027.

Plain-English summary, written with AI assistance. The official text controls.

What it means for business

Large online platforms (over 2,000,000 monthly users), from January 1, 2027: detect standards-based provenance data, show whether it marks content as AI-generated or camera-captured, let users inspect it, and not knowingly strip it where feasible. $5,000 per violation, per day (§ 22757.4).

Key provisions

1. 1Amends Bus. & Prof. Code § 22757.3.1; a large online platform is a public-facing social media, file-sharing or mass messaging platform or stand-alone search engine that distributes others' content and exceeded 2,000,000 unique monthly users in the preceding 12 months (§ 22757.1; broadband and telecommunications services excluded)
2. 2Platforms must detect whether any provenance data is embedded in, attached to or associated with content distributed on the platform
3. 3A user interface must reliably indicate whether system provenance data or a digital signature identifies content as generated or substantially altered by a GenAI system or captured by a capture device, and clearly and conspicuously show whether provenance data is present, the name of the GenAI system or capture device (if applicable) and whether digital signatures are present
4. 4Users must be able to inspect system provenance data in an easily accessible manner: in the platform's interface, through a link to a website or app (including a third party's), or by downloading the provenance data in a format not easily attached to unrelated content, subject to federal copyright law
5. 5Platforms need not maintain, display or allow download of personal information, and may not, to the extent technically feasible, knowingly strip system provenance data or digital signatures from content uploaded to, distributed on or downloaded from the platform
6. 6No action is required for provenance data, system provenance data or digital signatures that are not compliant or interoperable with widely adopted specifications issued by an established standards-setting body
7. 7Signed September 30, 2026 (Chapter 856, Statutes of 2026); effective and operative January 1, 2027

Latest legislative action

Sep 30, 2026. Chaptered by Secretary of State - Chapter 856, Statutes of 2026.

Sponsors

Roll call votes