Washington Administrative Code
Title 434 - Secretary of State
Chapter 434-324 - Statewide voter registration database
Section 434-324-076 - Voter registration updates

(1) Pursuant to RCW 29A.08.140, a person already registered to vote in Washington may update their registration by submitting an address change using a registration application or making notification via any non-in-person method that is physically received by an election official no later than eight days before election day, or by appearing in person no later than 8:00 p.m. on election day.

(2) The county auditor may request additional identifying information before processing a voter registration update submitted on behalf of a family or household member.

(3) If a voter submits a registration transfer to a new county by the statutory deadline, but the voter's previous county issued the voter a ballot before the transfer is processed and the voter's ballot issued by the previous county was received but not yet accepted, the previous county must mail the suspended ballot to the voter's new county. If any races or issues on the suspended ballot from the previous county are applicable to the voter's residential address in the new county, the votes on those races and issues should be counted by the new county only when the voter does not vote and return a current ballot, or when the current ballot cannot be processed due to incorrect or incomplete information on the ballot envelope.

(4) If a participant in the future voter program established under RCW 29A.08.170 submits an address change, the county auditor must change the address listed on the application.