Are You Compliant? PHMSA Advisory Bulletin: Centerline Surveys Essential

Are You Compliant? PHMSA Advisory Bulletin: Centerline Surveys Essential On December 13, 2016, the Pipeline and Hazardous Materials Safety Administration issued an advisory bulletin to remind gas transmission line operators of best methods for identifying, mapping, and properly accounting for High Consequence Areas (HCAs). While the bulletin generally revisits standards previously conveyed, it speaks clearly…