Final rule · 2025-19341

Pipeline Safety: Standards Update-API Spec 6D

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 the updated industry standard American Petroleum Institute (API) Specification 6D, "Specification for Valves."