PDFWAC 296-307-48045
Protecting piping systems.
Service piping systems must be protected by pressure relief devices set to function at not more than the design pressure of the systems and discharging upwards to a safe location.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 20-21-091, § 296-307-48045, filed 10/20/20, effective 11/20/20. WSR 97-09-013, recodified as § 296-307-48045, filed 4/7/97, effective 4/7/97. Statutory Authority: RCW 49.17.040, [49.17.]050 and [49.17.]060. WSR 96-22-048, § 296-306A-48045, filed 10/31/96, effective 12/1/96.]