Wash. Rev. Code § 42.17A.418
(1) Each candidate or political committee that has accepted a contribution, and each out-of-state committee that has accepted a contribution reportable under RCW 42.17A.250, from a partnership, association, corporation, organization, or other combination of persons must receive a certification from each contributor that:
[ 2020 c 152 s 10.]
Findings—2020 c 152: See note following RCW 42.17A.417.