In one paragraph
Washington's HB 2503 (substitute, 2026 session) would have required developers of generative AI systems to post a high-level summary of their training datasets on their website on or before January 1, 2027 and before each later release or substantial modification made available to Washingtonians. It covered systems released on or after January 1, 2022, and treated violations as Consumer Protection Act violations. It was reported from House Technology, Economic Development, & Veterans on January 28, 2026, referred to Appropriations January 30 and died at adjournment.
Plain-English summary, written with AI assistance. The official text controls.
What it means for business
None: the bill did not pass. It would have required generative AI developers to publish training-data summaries, including copyright and personal-information details.
Key provisions
- Developers: entities primarily engaged in developing or substantially modifying generative AI for commercial or public use; excludes internal-use or research developers, API users without substantial modification, and public entities (Sec. 1)
- Website summary must cover dataset sources, number and types of data points, copyrighted or licensed material, personal information, cleaning, training dates, synthetic data use, and steps to remove child sexual abuse material (Sec. 2(1))
- No disclosure for security-and-integrity systems, aircraft operation in national airspace, national security systems for federal entities, or systems under the Food, Drug, and Cosmetic Act (Sec. 2(2)-(3))
- Compliance judged by the generally acknowledged state of the art; no duty to give up trade secrets or intellectual property rights (Sec. 3)
- Violations are unfair or deceptive acts under the Consumer Protection Act, chapter 19.86 RCW; no separate penalties (Sec. 4)
- House Technology majority do pass January 28, 2026; referred to Appropriations January 30; died at adjournment. No effective date stated in the text
Latest legislative action
Jan 30, 2026. Referred to Appropriations.
Sponsors (showing 5 of 18)
| Name | Role |
|---|---|
| Barkis | Primary |
| Pollet | Primary |
| Shavers | Primary |
| Vick | Primary |
| Blake | Cosponsor |
Topics and industries
Related topics
Affected industries
This page is general information, not legal advice. Summaries are AI-assisted and may contain errors; read the statute for the controlling text and talk to a lawyer about your situation. Full disclaimer · Report an error