Oregon Revised Statutes Elections § 247.296

(1) The county clerk shall use records of the United States Postal Service relating to ballots issued by mail to verify the accuracy of addresses of electors contained in the registration file of the county clerk.

(2) Based on information obtained under subsection (1) of this section, the county clerk shall automatically update the registration of an elector under ORS 247.292 or mail a notice described in ORS 247.563.

(3) The registration of an elector shall not be canceled during the 90-day period prior to any primary or general election based on information obtained under this section.