Final rule · 2026-15584

Pipeline Safety: Standards Update-ASTM A53/A53M

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 A53/A53M, Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless (ASTM A53/A53M).