Washington prior authorization laws (2026)
General reference compiled from public statutes and the AMA state-law chart. This is not legal advice. Statutes change; confirm the current law before relying on it.
Decision deadlines
Prior authorization (State-regulated health plans)
Standard decision: 3 calendar_days. Expedited: 2 calendar_days.
Washington HB 1357 (2023) · sourcePatient-protection mandates
Pa Minimum Validity
A PA cannot expire sooner than 45 days from the date of approval.
Washington HB 1357 (2023) · sourceFrequently asked questions
How long does an insurer have to decide a prior authorization in Washington?
Under Washington HB 1357 (2023), a standard prior authorization decision is generally due within 3 calendar_days, and an expedited decision within 2 calendar_days. Confirm the current statute, as timeframes vary by plan type.
What prior authorization patient protections does Washington have?
Washington law includes pa minimum validity. Each is grounded in a specific statute (see above).
Other states
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