Pipeline Advisory Committees
The Pipeline and Hazardous Materials Safety Administration (PHMSA) has two pipeline advisory committees mandated by law. Section 60115 of Title 49, United States Code, requires the establishment and prescribes the duties of the two committees formally named the Technical Pipeline Safety Standards Committee (TPSSC) and the Technical Hazardous Liquid Pipeline Safety Standards Committee (THLPSSC).
PHMSA informally refers to the committees as the Gas Pipeline Advisory Committee (GPAC) and the Liquid Pipeline Advisory Committee (LPAC). When referenced together, the two are known as the Pipeline Advisory Committees (PAC).