Wash. Rev. Code § 68.64.080
(1) Subject to subsections (2) and (3) of this section and unless barred by RCW 68.64.060 or 68.64.070, an anatomical gift of a decedent's body or part may be made by any member of the following classes of persons who is reasonably available, in the order of priority listed:
[ 2008 c 139 s 9.]