Final rule · 2025-19338

Pipeline Safety: Standards Update-ASTM A381/A381M

PHMSA is confirming the effective date for the DFR that appeared in the Federal Register on July 1, 2025. The DFR amended PHMSA's regulations at 49 CFR parts 192 and 195 to incorporate by reference ASTM International's updated industry standard ASTM A381/ A381M-18, "Standard Specification for Metal-Arc-Welded Carbon or High- Strength Low-Alloy Steel Pipe for Use with High-Pressure Transmission Systems."