Oregon Revised Statutes Water Resources: Irrigation, Drainage, Flood Control, Reclamation § 537.635

(1) Any certificate of registration issued under ORS 537.610 or permit issued under ORS 537.625 may be assigned, subject to the conditions of the certificate of registration or permit, but no such assignment shall be binding, except upon the parties to the assignment, unless filed for record in the Water Resources Department.

(2) An assignment of an application filed under ORS 537.615 or a permit issued under ORS 537.625 and filed for record with the Water Resources Department shall identify the current record owners of all property described in the application or permit. The assignor shall furnish proof acceptable to the department that notice of the assignment has been given or attempted for each identified property owner not a party to the assignment.