OAR 918-225-0315: Exemptions for Process Piping Systems

(1) For the purposes of the Oregon Boiler and Pressure Vessel Specialty Code, the requirements of OAR 918-225-0430(2)(d) shall be applied to only Category "M" fluid service process piping systems, as described in ASME B31.3, Appendix "M,” Guide to Classifying Fluid Service. For the purposes of these rules, "process piping systems" consists of welded, brazed, mechanically or chemically assembled piping listed as Category "M" by the owner. Process piping systems begin at the first, flanged, screwed or circumferential joint outside the supply or source to the destination excluding manufactured packaged components. Process piping does not include liquefied petroleum gas piping. (2) For the purposes of these rules, seismic provisions and additional requirements associated with process piping systems classified as Category "M" fluid service and the structure to which these systems are attached, shall be regulated and inspected under the provisions of the Oregon Structural Specialty Code. (3) Businesses and owner-users installing process piping classified as Category "M" fluid service must meet the requirements under OAR 918-225-0640, 918-225-0720, 918-225-0730 and 918-225-0740 as appropriate. Individuals installing Category M fluid service process piping must be licensed under OAR 918-225-0691 on or before July 1, 2003, unless they meet the requirements of these rules under OAR 918-225-0720 or owner-users under 918-225-0740. [Publications: Publications referenced are available from the agency.]