Installed LP-gas, such as propane, propylene, butane, normal butane or isobutane, and butylenes, must comply with the state fire code and fuel gas code, as adopted by the state building code council.
Wash. Admin. Code § 246-359-590
Statutory Authority: RCW 70.114A.081. 99-03-065, § 246-359-590, filed 1/18/99, effective 2/18/99.