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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Archived Rulemaking: Transportation of Natural and Other Gas by Pipeline Transportation of Hazardous Liquids by Pipeline; Placing Longitudinal Weld Seams In Upper Half of Pipe

47-fr-6675.pdf (216.07 KB)

An ANPRM sought information concerning the need for a new safety standard that would require placement of the longitudinal weld seams in the upper half of newly constructed pipelines as a means to reduce the number of accidents caused by internal corrosion. The comments to the ANPRM, recommendations by members of advisory committees for gas and liquid pipelines, and a review of accident reports submitted to MTB indicate that the location of the weld seam is not expected to be a factor in corrosion caused accidents that might occur on newly constructed pipelines. Consequently, the ANPRM is withdrawn.

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Last updated: Friday, August 17, 2018