Pipeline Safety: Standards Update—ASTM A333/A333M

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Pipeline and Hazardous Materials Safety AdministrationOfficial agency material

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Final Rule with Request for CommentsPipeline Safety: Standards Update—ASTM A333/A333M Rule; Final Rule with Request for Comments. Filed in Regulations.gov docket PHMSA-2026-1525.#

This material provides agency context. It does not replace binding regulatory text, and its legal effect depends on the underlying authority and facts.