Wash. Rev. Code § 52.26.040
(1) A regional fire protection service authority planning committee shall adopt a regional fire protection service authority plan providing for the governance, design, financing, and development of fire protection and emergency services. The planning committee may consider the following factors in formulating its plan:
(3) The planning committee shall:
[ 2011 c 141 s 2; 2006 c 200 s 2; 2004 c 129 s 4.]