Or. Admin. R. 309-118-0030 – Representatives

(1) A patient has the right to have a representative, as defined in OAR 309-118-0005, to assist them in the grievance and review process. A patient shall not act as a representative for another patient in the grievance process.
(2) If the patient and the representative disagree about submitting the grievance or request for review, the patient’s grievance or review request will be addressed as provided in these rules, except where the representative is the patient’s legal guardian or health care representative and has legal authority to make decisions on behalf of the patient.

ORS 179.040, 413.042, 179.321 & 179.360

ORS 426.385, 179.321 & 179.360