Wash. Rev. Code § 48.130.060
(4)
(a) A compacting state may opt out of a uniform standard, either by legislation or regulation adopted by the insurance department under the compacting state's administrative procedure act. If a compacting state elects to opt out of a uniform standard by rule, it must:
(b) The commissioner shall make specific findings of fact and conclusions of law, based on a preponderance of the evidence, detailing the conditions in the state which warrant a departure from the uniform standard and determining that the uniform standard would not reasonably protect the citizens of the state. The commissioner must consider and balance the following factors and find that the conditions in the state and needs of the citizens of the state outweigh:
[ 2005 c 92 s 7.]