AB 2013 Compliance Guide (2026)
AB 2013, the Generative AI Training Data Transparency Act, requires developers of generative AI systems to publicly disclose the categories of data used to train their models — including whether the training set included copyrighted material, personal data, or HIPAA-regulated health information.
What AB 2013 Requires
AB 2013 requires any entity that develops or deploys a generative AI system to publish a publicly accessible disclosure describing the categories of data used to train the system. The disclosure must cover the data sources, whether personal or protected health information was used, and whether the data was licensed or scraped.
The "substantially modified" trigger is one of the most operationally disruptive provisions: if a developer makes significant changes to a model — including retraining on new data — the disclosure obligation reattaches. Teams doing continuous model updates must maintain an ongoing disclosure program, not a one-time filing.
All AB 2013 Guides & Resources
13 resourcesAB 2013: MedTech Training Data Transparency
The "Black Box" is opening. California now requires you to show your training data.
AB 2013: MedTech Training Data Transparency Guide
The secret sauce of your AI model might have to go public. Here's what AB 2013 requires.
AB 2013 Documentation Guide for AI Developers
A step-by-step guide to creating compliant AB 2013 training data documentation.
AB 2013: High-Level Summary for Healthcare AI Teams
Everything healthcare AI teams need to know about AB 2013 in a clear, actionable summary.
AB 2013 Complete Guide: From Summary to Implementation
A comprehensive walkthrough of AB 2013 from the legislative intent to implementation details.
AB 2013 Training Data Disclosure: What Must Be Public
A precise breakdown of what information AB 2013 requires you to publicly disclose about your training data.
AB 2013: Is Your AI 'Substantially Modified'?
Updating your model? You might have just triggered a mandatory public disclosure.
AB 2013 vs. Trade Secrets: Navigating the Tension
Transparency vs. Trade Secrets: How to satisfy AB 2013 without giving away proprietary model details.
Is Your AI Training Data Legal? 2026 AB 2013 Deadline
2026 feels far away, but data provenance takes years to document. Start now.
California's New AI Training Disclosure Laws
Transparency is no longer optional. Is your model's data ready for public scrutiny?
Protecting IP While Complying with AI Transparency Laws
Transparency vs. Trade Secrets: How to satisfy CA regulators without giving away the farm.
California AI Laws for Small Startups: AB 2013 Edition
Small teams face the same AB 2013 obligations as large enterprises. Here is what matters most.
CMIA & AI: Governing Medical Training Sets
The CA Attorney General is watching: Patient data in AI models is now a high-stakes legal game.
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