Wash. Rev. Code § 48.09.410
(2) After the board has adopted a plan and before the board seeks approval of the plan by the eligible members of the converting mutual insurer, the converting mutual insurer shall file the following documents with the commissioner:
(5) After the commissioner approves a plan, the eligible members of the converting mutual insurer must approve the plan. Approval by the eligible members is subject to the following requirements:
(b) The vote required for approval must be conducted in accordance with the converting mutual insurer's bylaws, except that:
[ 2023 c 20 s 2.]