United States of America: California AI Transparency Act including design requirements for large online platforms and covered providers enter into force
Description
California AI Transparency Act including design requirements for large online platforms and covered providers enter into force
On 1 January 2027, the California Artificial Intelligence (AI) Transparency Act, including design requirements for large online platforms and covered providers enter into force. It provides that large online platforms must detect and disclose provenance data embedded in content distributed on their services. It also requires the platforms to provide clear user interfaces displaying whether the content was AI-generated or altered. It also requires them to allow users to inspect, download, or access provenance data through linked sources, ensuring transparency in content authenticity.
Original sourceScope
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
2025-06-02
under deliberation
2025-09-12
adopted
2025-10-13
adopted
2026-08-02
in grace period
2027-01-01
in force