The bill creates a new chapter in Title 19 RCW that requires developers of generative artificial intelligence systems or services to post documentation on their websites about the data used to train the systems. The documentation must be posted on or before January 1, 2026 and again before each time a generative AI system or any substantial modification of such a system (released on or after January 1, 2022) is made publicly available to Washingtonians. Required content includes a high-level summary and specific dataset details identified in the bill; developers may also note the functional need or purpose of any synthetic data used. The bill also lists several definitions (for example, “developer,” “generative artificial intelligence system or service,” “substantial modification,” and “synthetic data generation”) and excludes certain actors, including entities that develop AI only for internal or research use or that use third-party AI via API without substantial modification. The bill provides exceptions where documentation is not required, including systems whose sole purpose is to help ensure “security and integrity,” systems whose sole purpose is operation of aircraft in the national airspace, and systems developed for national security, military, or defense purposes that are made available only to a federal entity. Enforcement is assigned to the Washington State Attorney General. A developer found in violation is liable for a civil penalty of $5,000 per day; the attorney general must notify a developer and allow 45 days to cure an alleged violation if the attorney general determines a cure is possible before bringing a civil action. Some important details are not included in the provided text: the bill references RCW 19.373.010 and RCW 19.146.010 for additional definitions (personal information and affiliate) but those definitions are not provided here, “Washingtonians” is not defined in the extracted facts, the precise scope and application of the “sole purpose” exceptions is not fully explained, and the new chapter’s numeric designation or RCW section numbers are not given. The extracted facts also do not include any additional enforcement procedures, defenses, or litigation details beyond the notice, 45-day cure period, and per-day civil penalty.

If enacted, companies, government contractors, and other developers who make generative AI systems publicly available to people in Washington will have to publish a public summary of the datasets used to train each system by January 1, 2026 and every time a system or a substantial update is released. That will create ongoing compliance work and likely new legal and administrative costs for preparing and updating documentation, and it raises the risk of significant financial exposure because the Washington attorney general can impose a $5,000 per day civil penalty after giving the developer notice and a 45‑day chance to cure violations when cure appears possible. The rule primarily affects developers as defined (including state and local agencies and commercial vendors) while excluding systems whose sole purpose is security/integrity, aircraft operation in national airspace, and certain national security or military systems made available only to federal entities. Important details that would affect who exactly must comply and how broadly the exceptions apply are missing here — terms like “Washingtonians,” “personal information,” and the precise scope of the “sole purpose” exceptions are referenced from other laws but not defined in the provided text, creating uncertainty about some real‑world boundaries of the requirement.