There is hereby created a nonprofit unincorporated legal entity to be known as the Washington insurance guaranty association. All insurers defined as member insurers in RCW 48.32.030 shall be and remain members of the association as a condition of their authority to transact insurance in this state. The association shall perform its functions under a plan of operation established and approved under RCW 48.32.070 and shall exercise its powers through a board of directors established under RCW 48.32.050. For purposes of administration and assessment, the association shall be divided into three separate accounts: (1) The automobile insurance account; (2) the account for longshore and harbor workers' compensation act insurance; and (3) the account for all other insurance to which this chapter applies.