EUIn force
Article 50 marking duties apply from 2 August 2026, subject to a limited legacy-system grace period.
Open sourceCanonical policy ask · Content integrity
Require machine-readable marking of AI-generated or altered content
Require covered providers to attach detectable technical provenance markers to synthetic or materially altered content.
Current standingin-force
Jurisdiction map
Current legal positionChinaIn force
The AI-generated synthetic content labelling measures apply from 1 September 2025.
Open sourcePolicy vehicles
Where the ask appearsregulation · Applicable
EU AI Act · Article 50 transparency obligations
Article 50 establishes transparency duties for specified AI interactions and synthetic or manipulated content.
administrative-measure · In force
AI-Generated Synthetic Content Labelling Measures
China’s administrative measures govern explicit and implicit labels for covered AI-generated synthetic content.
Policy lineage
Events and deadlines- 2025-03-14China publishes synthetic-content labelling measures
Four authorities published measures governing labels for AI-generated synthetic content.
- 2025-09-01China’s synthetic-content labelling measures take effect
The national labelling measures entered into force.
- 2026-08-02EU Article 50 transparency duties enter application
The EU’s Article 50 transparency duties became applicable as enforcement powers expanded.
- 2026-12-02Limited Article 50 legacy-system grace period ends
The limited transition for machine-readable marking by certain systems placed on the market before August closes.
Evidence ledger
Explained source passagesDirect sourceOpen evidence record
EU rules require detectable machine-readable marks
The Commission describes a technical marking duty for covered AI-generated or altered content.
AI-generated or altered content will also have to carry machine-readable marks so it can be detected more easily.European Commission · Commission enforcement announcement · paragraph 3
Direct sourceOpen evidence record
China’s synthetic-content labelling measures entered into force
Article 14 sets 1 September 2025 as the effective date.
第十四条 本办法自2025年9月1日起施行。Cyberspace Administration of China · Article 14
Cross-source analysisOpen evidence record
EU and Chinese rules converge on provider-side labelling
Both regimes impose provider-facing duties, although their legal scope and enforcement structure differ.
服务提供者开展人工智能生成合成内容标识活动，适用本办法。Cyberspace Administration of China · China measures · Article 2, read with EU Article 50 material