Oregon Revised Statutes Public Health and Safety § 441.015

(1) No person or governmental unit, acting severally or jointly with any other person or governmental unit, shall establish, conduct, maintain, manage or operate a health care facility or health maintenance organization, as defined in ORS 442.015, in this state without a license.

(2) Any health care facility or health maintenance organization which is in operation at the time of promulgation of any applicable rules or minimum standards under ORS 441.025 or 731.072 shall be given a reasonable length of time within which to comply with such rules or minimum standards.