By mail.
RCW 29A.04.010
in effect"By mail" means delivery of a completed original voter registration application by mail to a county auditor or the office of the secretary of state.
"By mail" means delivery of a completed original voter registration application by mail to a county auditor or the office of the secretary of state.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=29A.04&full=trueFetched: 6/29/2026
