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Direct final rule (DFR); confirmation of effective date.
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 to incorporate by reference ASTM International's updated industry standard ASTM F2945, "Standard Specification for Polyamide 11 Gas Pressure Pipe, Tubing, and Fittings."