Final rule · 2026-08073

Pipeline Safety: Standards Update-ASTM A53/A53M

This DFR amends PHMSA's regulations to incorporate by reference an updated edition of industry standard ASTM A53/A53M, Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc- Coated, Welded and Seamless. This updated standard will maintain or improve public safety, prevent regulatory confusion, reduce compliance burdens on stakeholders, and satisfy a mandate in the National Technology Transfer and Advancement Act (NTTAA) of 1995.