US-CA

California AB 2013 — Generative AI Training Data Transparency Act: AI Compliance Requirements

California AB 2013 requires any person or company that designs, codes, produces, or substantially modifies a generative AI system made available to California residents (since January 1, 2022) to publicly post a high-level summary of the training datasets used. This applies to businesses that build their own AI models or substantially customize foundation models — not just those using off-the-shelf AI APIs. If your product wraps or fine-tunes a foundation model, you may be a covered "developer."

Key Facts

Effective Date

January 1, 2026

Maximum Penalty

$5,000 per violation (enforced by California AG)

What Your Business Must Do

2 compliance requirements identified. Critical requirements carry the highest risk of enforcement action.

Training Data Disclosure (AB 2013)

Critical

If you develop, produce, or substantially modify a generative AI system made available to California residents, publish a high-level summary of the training datasets on your website. Include: data types used, sources, date ranges, and any known content related to sensitive categories (minors, personal data, copyrighted material).

Deadline: January 1, 2026

Public Website Training Data Summary

High Priority

The training data summary must be publicly accessible on your website — not buried in terms of service. It must be available before or concurrent with making the GenAI system available, and updated when material changes to training data are made.

Deadline: January 1, 2026

Frequently Asked Questions

Does California AB 2013 — Generative AI Training Data Transparency Act apply to my business?

California AB 2013 requires any person or company that designs, codes, produces, or substantially modifies a generative AI system made available to California residents (since January 1, 2022) to publicly post a high-level summary of the training dat. Use ComplianceIQ's free scanner to get a personalized assessment in under 5 minutes.

What is the penalty for non-compliance?

The maximum penalty under California AB 2013 — Generative AI Training Data Transparency Act is: $5,000 per violation (enforced by California AG). Fines are typically scaled by company size, severity of violation, and whether violations were willful or accidental.

How do I comply with California AB 2013 — Generative AI Training Data Transparency Act?

The 2 requirements above cover the core obligations. The fastest path to compliance is: (1) conduct an AI risk assessment, (2) document your AI systems, (3) implement transparency disclosures where required. ComplianceIQ generates all required documents automatically.

Official Source

https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=202320240AB2013

Last updated: 2026-04-12 — verify at source before relying on this information.

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