March 1991 Emergency Flow Restricting Devices Study

Current as of source date

Government source

Pipeline and Hazardous Materials Safety AdministrationOfficial agency material

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Supplemental CommentMarch 1991 Emergency Flow Restricting Devices Study Other; Supplemental Comment. Filed in Regulations.gov docket PHMSA-2013-0255.#

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