U.S.DOT/PHMSA - See attachments

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Government source

Pipeline and Hazardous Materials Safety AdministrationOfficial agency material

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Supplemental CommentU.S.DOT/PHMSA - See attachments Other; Supplemental Comment. Filed in Regulations.gov docket PHMSA-2012-0231.#

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