Pipeline Safety Standards Committee, also known as the Gas Pipeline Advisory Committee (GPAC), to discuss topics and provisions of the proposed rule titled "Safety of Gas Transmission and Gathering Pipelines," and a joint meeting of the GPAC and the Techincal Hazardous Liquid Pipeline Safety Standards Committee, also known as the Liquid Pipeline Advisory Committee (LPAC).  The purpose of the joint meeting of the GPAC and LPAC is to discuss a variety of policy issues and topics relative to pipeline safety.