Oregon Revised Statutes Oregon Vehicle Code § 813.635

(2) Notwithstanding ORS 813.602 (1)(b) or (c), (2) or (3), the requirement to have an ignition interlock device installed in a vehicle continues until the person submits to the department a certificate from the ignition interlock device provider stating that the device did not record a negative report for the last 90 consecutive days of the required installation period. The department shall remove the ignition interlock device requirement from the person's driving record as soon as practicable after the department receives the certificate.

(3) If there is a negative report during the last 90 consecutive days, the person shall continue to use an ignition interlock device beyond the period required under ORS 813.602 (1)(b) or (c), (2) or (3) until the person submits a certificate, in a form prescribed by rule by the department, to the department from the ignition interlock device provider stating that the device has not recorded a negative report for 90 consecutive days, beginning on the date of the most recent negative report.

(4) This section does not apply to a defendant who is granted an order to vacate the requirement to install an ignition interlock device under ORS 813.645.