Washington: AI health lawsYour state
6 entries on the map: 5 in force and 1 enacted and not yet in force (main duties begin Jan. 1, 2027).
Washington's AI rules mostly govern payers, chatbot operators and businesses that collect health data.
Full overview and dates aheadHide full overview
Since June 11, 2026, SB 5395 has barred health carriers and public and school employee plans from denying, delaying or modifying care by AI alone. Only a licensed physician or health professional may deny a prior authorization request based on medical necessity, and the AI must rely on the patient's own clinical history. A 2024 insurance advisory encourages insurers to govern, test and document their AI.
HB 2155, in force since June 11, 2026, bars an AI tool or other nonhuman entity from using a nursing title. From Jan. 1, 2027, HB 2225 requires companion chatbots to say they are not human and to refer users expressing suicidal ideation to crisis services. The My Health My Data Act exempts protected health information but requires separate consent to collect or share other consumer health data. A 2017 biometric identifier law limits commercial use of biometric identifiers but excludes treatment, payment and operations data.
Dates ahead
- Jan. 1, 2027HB 2225, Regulating Artificial Intelligence Companion ChatbotsClinical decision and chatbot limits
Payer and utilization review AI
Technical Assistance Advisory 2024-02, The Use of Artificial Intelligence Systems in Insurance
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What the law requires, who it binds, when it takes effect and the primary sources, checked on a dated schedule.
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SB 5395, Making Improvements to Transparency and Accountability in the Prior Authorization Determination Process
Patient disclosure of AI use
Also relevant here: HB 2225, Regulating Artificial Intelligence Companion Chatbots (under clinical decision and chatbot limits).
Clinical decision and chatbot limits
HB 2155, Concerning the Use of Nursing Titles
HB 2225, Regulating Artificial Intelligence Companion Chatbots
Mental health AI
Also relevant here: HB 2225, Regulating Artificial Intelligence Companion Chatbots (under clinical decision and chatbot limits).
Data and privacy
HB 1493, Concerning Biometric Identifiers
HB 1155, My Health My Data Act
What applies to me in Washington: physician, practice owner, hospital.
Federal law also applies in every state: see federal law and policy.
Calendar of dates laws take effect (Washington): subscribe or download the .ics file.
General information, not legal advice. The whole map is available as data at /law-map/laws.json.