The concurrent reorganization of a domestic mutual insurer with one or more mutual insurers, domestic or foreign, into a single mutual holding company, whether domestic or foreign, may be accomplished by a joint application and a joint plan and may be approved by the commissioner by complying with the requirements of this chapter. The commissioner may determine that such other procedures are unnecessary to avoid duplicative costs and efforts in satisfying the requirements of this chapter and effectuating the reorganization.
RCW 48.09.450