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 Consequently, the ANPRM is withdrawn.