(1) All gas piping must be adequately supported by galvanized or equivalently protected metal straps or hangers at intervals of not more than 4 feet, except where adequate support and protection is provided by structural members.
(2) Gas pipe supply connections must be rigidly anchored to a structural member within 6 inches of the supply connections.
[Statutory Authority: Chapter 43.22 RCW. WSR 99-18-069, ยง 296-150V-1400, filed 8/31/99, effective 10/1/99.]