US lawWashingtonRegulationsTitle 51 — ENTERPRISE SERVICES, DEPARTMENT OF (BUILDING CODE COUNCIL)Chapter 51-52 — STATE BUILDING CODE ADOPTION AND AMENDMENT OF THE 2021 EDITION OF THE INTERNATIONAL MECHANICAL CODE51-52-21800WAC 51-52-21800WAC 51-52-21800. Chapter 8 — Referenced standardsLast amended: 2024Year: 2026Length: 38 wordsOfficial source The following referenced standards are added to Chapter 8. ASME B16.38-2012(R2017): Large Metallic Valves for Gas Distribution: Manually Operated, NPS 2 1/2 (DN 65) to NPS 12 (DN 300), 125 psig (8.6 bar) Maximum. . . .Table 409.1.1PreviousWAC 51-52-21409