Description

California AI Transparency Act including design requirements enters into force with grace period

On 2 August 2026, the California Artificial Intelligence (AI) Transparency Act enters into force with grace period, introducing design obligations for generative artificial intelligence systems, large online platforms, and capture-device manufacture…

Scope

Policy Area
Design and testing standards
Policy Instrument
Design requirement
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 California Artificial Intelligence (AI) Transparency Act was passed by the Cali…

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 Artificial Intelligence (AI) Transparency Act enters into force wi…

2027-01-01
in force

On 1 January 2027, the California Artificial Intelligence (AI) Transparency Act, including design r…

2028-01-01
in force

On 1 January 2028, the California Artificial Intelligence (AI) Transparency Act, including design r…