ORS 811.507
Section 5, chapter 629, Oregon Laws 2017, provides:
Sec. 5. The amendments to ORS 811.507 by section 1, chapter 629, Oregon Laws 2017, apply to:
(1) Offenses committed on or after October 1, 2017; and
(2) For purposes of determining prior convictions within a 10-year period under ORS 811.507 (5)(c) or (d), prior convictions occurring on or after July 1, 2018. [2017 c. 629, § 5; 2018 c. 32, § 3]
Section 4, chapter 32, Oregon Laws 2018, provides:
Sec. 4. (1) A person convicted of an offense under ORS 811.507 (5)(c) or (d), the classification of which was enhanced due to the court taking into account one or more prior convictions occurring before July 1, 2018, may request in writing that the court redetermine the classification of the offense.
(2) Upon receipt of a request under this section, if the court determines that the classification of the offense was based upon the court taking into account one or more prior convictions occurring before July 1, 2018, the court shall vacate the judgment of conviction and enter a new judgment of conviction for a Class B or Class A traffic violation in accordance with ORS 811.507 (5)(a) or (b). [2018 c. 32, § 4]
811.507 was added to and made a part of the Oregon Vehicle Code by legislative action but was not added to ORS chapter 811 or any series therein. See Preface to Oregon Revised Statutes for further explanation.