PDFWAC 296-14-340
Frontline workers—Verification for contraction of an infectious or contagious disease that is the subject of a public health emergency—RCW 51.32.181.
(1) Verification that an infectious or contagious disease has been contracted requires written documentation of:
(a) A diagnosis from a medical provider made by examination; or
(b) A positive test administered or verified by a medical facility, testing facility, pharmacy, or the employer's facility.
(2) The following cannot be used as verification that a worker has contracted an infectious or contagious disease:
(a) Symptoms only self-reported by the worker; or
(b) A report from a medical provider that solely relies on a worker's self-reported positive test results.