Wellhead and lease equipment with a working pressure at least equivalent to the calculated or known pressure to which the equipment may be subjected shall be installed and maintained. Valves shall be installed and maintained in good working order to permit pressure readings to be obtained on both casing and tubing.
N.D. Admin Code 43-02-02-21
General Authority: NDCC 38-12-02
Law Implemented: NDCC 38-12-02