Final rule · 2026-15583

Pipeline Safety: Standards Update-ASTM A333/A333M

PHMSA is confirming the effective date for a DFR published in the Federal Register on April 24, 2026. The DFR amended PHMSA's regulations at 49 CFR parts 192 and 195 to incorporate by reference the updated industry standard ASTM A333/A333M, Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications with Required Notch Toughness (ASTM A333/A333M).