OAR 918-225-0745. Contractor Registration

(1) All persons in the business of assembling or repairing pressure relief valves shall adopt a quality control system under the “VR” Symbol Stamp of the National Board. (2) All persons in the business of testing and making only minor adjustments to pressure relief valves shall adopt a quality control system under the “T/O” Symbol Stamp of the National Board. (3) An owner-user may use its own employees to repair pressure relief valves for its own use, provided it adopts a quality control system under the “VR” Symbol Stamp of the National Board. (4) An owner-user may use its own employees to test and make minor adjustments only to pressure relief valves for its own use, provided it adopts a quality control system under the “T/O” Symbol Stamp of the National Board.