Oregon Revised Statutes Agriculture § 568.440

In any suit, action or proceeding involving the validity or enforcement of, or relating to, any contract, proceeding or action of a soil and water conservation district, the district shall be deemed to have been formed in accordance with ORS 568.210 to 568.808 and 568.900 to 568.933 upon proof of the issuance by the Secretary of State of the certificate provided for in ORS 568.420 or 568.555. A copy of such certificate certified by the Secretary of State shall be admissible in evidence in any such suit, action or proceedings and shall be proof of the filing and contents of the certificate.