Oregon Revised Statutes Public Health and Safety § 463.047

(1) The Oregon State Athletic Commission or a designee of the commission shall assign or approve medical personnel to each boxing or mixed martial arts event held in this state.

(2) Prior to the commencement of any boxing or mixed martial arts event held in this state, the medical personnel assigned to the event shall certify that each contestant is medically qualified to participate in the event in accordance with rules recommended by the commission and adopted by the Superintendent of State Police. In determining whether to issue or withhold the required certification, the assigned medical personnel shall consider:

(3) When certification under this section is withheld from a contestant, the commission or a designee of the commission shall immediately notify the promoter or a representative of the promoter and any event involving the medically unqualified contestant shall be canceled.