California AI Training Data Transparency Act (AB 2013)
In effect since January 1, 2026
Overview
Requires developers of generative AI systems or services made available to Californians to publish high-level documentation about the data used to train their models, including data sources, types, and curation methods.
This is an AI-specific state law.
Who this applies to
This regulation applies to companies that build, develop, or sell AI tools, models, or systems. If your company creates AI products that other businesses or consumers use, this regulation may apply to you.
AI categories covered
- General purpose AI
- Consumer-facing AI
Specific AI use cases:
- Content generation
- Chatbots and virtual assistants
- general llm
What this requires you to do
Disclosure to users required
Disclose AI use. Make it clear to users when they are interacting with AI-generated content or AI-driven systems.
Transparency notice required
Provide transparency notices. Inform affected individuals that AI is being used and how it influences decisions.
Record-keeping required
Maintain records. Keep documentation of your AI systems, decisions made, and compliance activities.
Enforcement and penalties
Enforced by California AG under existing consumer protection authority.
Source
Read the full text
https://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=202320240AB2013
Always verify current language and amendments at the official source.
Other California regulations
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