Christmas-tree fittings or well-head connections shall have a working pressure in keeping with the expected pressure of the well.
Wash. Admin. Code § 344-12-200
Statutory Authority: RCW 78.52.050 and chapter 78.52 RCW. 82-12-052 (Order 3, Resolution No. 7), § 344-12-200, filed 6/1/82.