Law tracker
One page per jurisdiction that requires AI-generated content to be marked, kept current, each rule citing its primary source and the date we read it.
California's AI Transparency Act: SB 942 as amended by AB 853
Operative 2 August 2026 for providers over a million monthly users: latent disclosures, a free detection tool, $5,000 a violation a day. Read 12 Oct 2026.
Last reviewed 12 October 2026
Changes to AI content marking rules
Dated log of every change to the laws, codes and platform policies that SignUnder tracks, newest first, each with its primary source.
Last reviewed 13 October 2026
China's AI content labelling measures: visible and metadata labels
Since 1 September 2025 China requires a visible label and a metadata label on AI-generated content, and platforms must check for them. Read 13 Oct 2026.
Last reviewed 13 October 2026
EU AI Act Article 50: who must mark AI content, by when, and how
Applies since 2 August 2026; systems on the market before then have until 2 December 2026. The provider, the marking, the fines. Read 12 Oct 2026.
Last reviewed 12 October 2026
India's IT Rules on synthetically generated information
Since 20 February 2026 Indian intermediaries must label realistic AI audio and visuals and embed permanent metadata with a unique ID. Read 13 Oct 2026.
Last reviewed 13 October 2026
New York's synthetic performer law for advertisements
Since 9 June 2026 ads shown in New York must conspicuously disclose an AI-generated performer. $1,000 first violation, $5,000 after. Read 12 Oct 2026.
Last reviewed 13 October 2026
South Korea's AI Basic Act, Article 31: labelling generative output
In force 22 January 2026: prior notice, a label on generative output, a clear label on realistic fakes. Fines reach KRW 30 million. Read 13 Oct 2026.
Last reviewed 13 October 2026
The EU Code of Practice on AI-generated content: what it asks of you
Signed metadata plus an imperceptible watermark, text over 200 tokens included, and interoperable detection by 2 February 2027. Read 12 Oct 2026.
Last reviewed 12 October 2026