RCW 51.08.020: "Beneficiary."

"Beneficiary" means a husband, wife, child, or dependent of a worker in whom shall vest a right to receive payment under this title: PROVIDED, That a husband or wife of an injured worker, living separate and apart in a state of abandonment, regardless of the party responsible therefor, for more than one year at the time of the injury or subsequently, shall not be a beneficiary. A spouse who has lived separate and apart from the other spouse for the period of two years and who has not, during that time, received, or attempted by process of law to collect, funds for maintenance, shall be deemed living in a state of abandonment.