United States of America: California AI Transparency Act, including provisions on authorisation obligations for large online platforms and covered providers enters into force
California AI Transparency Act, including provisions on authorisation obligations for large online platforms and covered providers enters into force
On 1 January 2027, the California Artificial Intelligence (AI) Transparency Act for large online platforms and covered providers enters into force. A covered provider is defined as a developer or operator of a generative artificial intelligence sys…
Scope
Policy Area
Authorisation, registration and licensing
Policy Instrument
Authorisation of goods or services
Regulated Economic Activity
online advertising provider, platform intermediary: user-generated content, ML and AI development, search service provider, platform intermediary: other
Implementation Level
subnational
Government Branch
legislature
Government Body
parliament
Complete timeline of this policy change
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2025-02-19
under deliberation
On 19 February 2025, the California Artificial Intelligence (AI) Transparency Act was introduced to…
2025-06-02
under deliberation
On 2 June 2025, The Act applies to AI providers with over 1 million monthly users, large online pla…
2025-09-12
adopted
On 12 September 2025, the California Artificial Intelligence (AI) Transparency Act was adopted by t…
2025-10-13
adopted
On 13 October 2025, the California Artificial Intelligence (AI) Transparency Act was signed by the …
2026-08-02
in grace period
On 2 August 2026, the California AI Transparency Act (AB 853) enters into force with grace period. …
2027-01-01
in force
On 1 January 2027, the California Artificial Intelligence (AI) Transparency Act for large online p…