How California Generative AI: Training Data Transparency applies to legal services organizations and the obligations to plan for.
Law firms, legal-tech vendors, and in-house legal teams using AI for document review, drafting, research, or client-facing decisions.
This law applies to legal organizations to the extent their AI use falls within the law's scope (see the obligations below). Organizations operating in California should treat this law as part of the baseline regulatory obligations alongside any sector-specific federal rules.
Publicly post on the developer's website a high-level summary of training datasets used for any generative AI system or service made available to Californians on or after January 1, 2022.
Deadline: by_2026-01-01
Address each statutory element in the dataset summary — sources or owners, how the data furthers the system's purpose, number and types of data points, copyright/trademark/patent or public-domain status, purchased-or-licensed status, presence of personal information or aggregate consumer information, any cleaning or modification, first-use dates, collection time period, and any use of synthetic data generation.
Deadline: by_2026-01-01
Refresh and re-post the public training-data summary before each subsequent public release or substantial modification of a covered generative AI system, so the disclosure stays current rather than ending at the initial January 1, 2026 deadline.
Deadline: before_each_release
This law applies to legal organizations to the extent their AI use falls within the law's scope (see the obligations below). The law should be read with the source-derived obligations listed on this page and any sector-specific federal rules that apply to legal services workflows.
California Generative AI: Training Data Transparency has been effective since January 1, 2026.
California Generative AI: Training Data Transparency lists developer as the role coverage for California. The actual duty depends on whether the organization develops, deploys, procures, or uses the covered AI system in the law's scope.
California Generative AI: Training Data Transparency does not list a fixed maximum penalty in the Atlas record; remedies follow the law's enforcement framework and source sections.
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