Wash. Rev. Code § 48.64.030
(3) If provided for in the organizational documents, a joint self-insurance program may, in conformance with this chapter:
(4) Every joint self-insurance program governed by this chapter must appoint the state risk manager as its attorney to receive service of, and upon whom must be served, all legal process issued against the program in this state upon causes of action arising in this state.
[ 2009 c 314 s 4.]