Section 2(1)(t) in The Petroleum and Natural Gas Regulatory Board (Access Code for Common Carrier or Contract Carrier Natural Gas Pipelines) Regulations, 2008
(t)"system use gas" (SUG) means the quantity of gas used by the transporter for the operation and maintenance of the pipeline system, including but not limited to, compressors, gas heaters, close cycle vapour or thermo electric gas turbines for cathodic protection and supervisory control and data acquisition (SCADA) system;