Section 2(1)(k) in The Petroleum and Natural Gas Regulatory Board (Determining Capacity of Petroleum, Petroleum Products and Natural Gas Pipeline) Regulations, 2010
(k)"capacity for the pipeline system" means the maximum quantity of petroleum, petroleum products or natural gas that can be injected into the system or off taken from the system at Specific points, meeting all the technical and operational parameters fixed in each pipeline section in a steady state conditions, that is, all parameters like flow, pressure, temperature are in harmony and vary only along the length of pipeline but not with time;