Oregon Revised Statutes Elections § 254.525

If a vote tally system is used, the county clerk shall repeat the public certification test described under ORS 254.235 (1) for the vote tally system used to conduct the election. The test shall be conducted after all the ballots are tallied but before the final results of the election are certified or before the vote tally system is shut down. The test may be observed by persons described in ORS 254.235 (2). The county clerk shall certify the results of the test.