RCW 29A.04.210: Registration required—Exception.

Except for service and overseas voters, only persons registered to vote shall be permitted to vote:

(1) At any election held for the purpose of electing persons to public office;

(2) At any recall election of a public officer;

(3) At any election held for the submission of a measure to any voting constituency;

(4) At any primary election.

This section does not apply to elections where being registered to vote is not a prerequisite to voting.