Wash. Rev. Code § 63.30.130
(2) With respect to a life or endowment insurance policy or annuity contract for which an amount is owed on proof of death, but which has not matured by proof of death of the insured or annuitant, the company has knowledge of the death of an insured or annuitant when:
(d)
(e) The company:
(3) The following rules apply under this section:
(a) A death master file match under subsection (2)(c) and (d) of this section occurs if the criteria for an exact or partial match are satisfied as provided by:
[ 2022 c 225 s 210.]