ORS § 419C.575
If the court finds that the parent's or guardian's addiction to or habitual use of alcohol, cannabis or controlled substances has significantly contributed to the circumstances bringing the adjudicated youth within the jurisdiction of the court, the court may conduct a special hearing to determine if the court should order the parent or guardian to participate in treatment. Notice of this hearing shall be by special petition and summons to be filed by the court and served upon the parent or guardian. The court shall appoint counsel to represent the parent or guardian at state expense. If, at this hearing, the court finds it is in the best interest of the adjudicated youth for the parent or guardian to be directly involved in treatment, the judge may order the parent or guardian to participate in treatment. The dispositional order shall be in writing and shall contain appropriate findings of fact and conclusions of law. The court may not impose any fees or costs for court-appointed counsel, evaluation or treatment ordered under this section. The judge shall state with particularity, both orally and in the written order of the disposition, the precise terms of the disposition.
ORS 419C.575