RCW 29A.40.010: Ballots by mail.

Each active registered voter of the state, overseas voter, and service voter shall automatically be issued a mail ballot for each general election, special election, or primary. Overseas voters and service voters are authorized to cast the same ballots, including those for special elections, as a registered voter of the state would receive under this chapter. Each active registered voter shall continue to receive a ballot by mail until the death or disqualification of the voter, cancellation of the voter's registration, or placing the voter on inactive status.