Oregon Revised Statutes Food and Other Commodities: Purity, Sanitation, Grades, Standards, Labels, Weights and Measures § 634.222

In any suit, action or proceeding involving the validity or enforcement of any proceeding or action of a protected area, the protected area shall be deemed to have been established in accordance with the provisions of this chapter upon proof of the filing of an order as required by ORS 634.216. A copy of such order, certified as filed by the Secretary of State, shall be admissible evidence in any such suit, action or proceeding and shall be proof of the filing and contents thereof.