Interlocal Agreement

WCIA was created in 1981 by Interlocal Agreement, as authorized under RCW 48.62 and 39.34, by nine Puget Sound cities. The organization has prospered through severe insurance crises. Membership has grown to over 150 municipal corporations. Originally called Puget Sound Cities Insurance Authority, the name was changed in 1986 to reflect statewide membership.

The Interlocal Agreement, a city oriented membership, is a "contract" defining the member and staff relationship between Washington Cities Insurance Authority and each member.