California SB 942
The leading US content-provenance mandate — aligned in spirit with the EU's marking obligations that also bit in August 2026, pushing C2PA-style provenance from voluntary standard toward legal requirement across two major markets simultaneously.
What it is
Requires large GenAI providers (over 1M monthly users) to offer free AI-detection tools and embed latent provenance disclosures in AI-generated content; AB 853 (2025) delayed operation to August 2026 and extended duties to large platforms and capture devices.
Who is affected
The leading US content-provenance mandate — aligned in spirit with the EU's marking obligations that also bit in August 2026, pushing C2PA-style provenance from voluntary standard toward legal requirement across two major markets simultaneously.
Key obligations
- Free public AI-detection tool for covered providers
- Latent (machine-readable) provenance data in AI-generated content
- Platforms must surface provenance data; capture devices embed authenticity data
Recent signals
Colorado AI Act takes effect after delayed start
The first comprehensive US state AI law is now operative — as DOJ's AI Litigation Task Force weighs challenges under the December 2025 preemption executive order.
New York RAISE Act frontier-safety duties begin
New York joins California in requiring large frontier developers to publish safety protocols and report incidents.
US state AI law wave: Texas, California and Illinois statutes take effect
TRAIGA, SB 53 (frontier transparency), AB 2013 (training-data disclosure) and Illinois HB 3773 all become operative on the same day — the broadest single expansion of binding US AI law.
California enacts SB 53, the first US frontier-AI transparency law
Large frontier developers must publish safety frameworks and report catastrophic-risk incidents — the transparency-first successor to vetoed SB 1047.
Related instruments
- US-STColorado AI ActThe first comprehensive US state AI law: developers and deployers of 'high-risk' AI systems in consequential decisions (employment…
- US-STTexas TRAIGATexas's AI law (effective 1 Jan 2026) takes an intent-based approach: it prohibits developing or deploying AI to unlawfully discri…
- US-STCalifornia SB 53The first US law regulating frontier AI developers specifically: large developers must publish frontier AI frameworks, report cata…
- US-STCalifornia AB 2013Requires developers of generative AI systems made available in California to publish documentation of training datasets — sources,…
- US-STIllinois HB 3773Amends the Illinois Human Rights Act to prohibit employers from using AI that discriminates in recruitment, hiring, promotion or d…