Transmission line
Transmission line means a pipeline or connected series of pipelines, other than a gathering line, that:
(1) Transports gas from a gathering pipeline or storage facility to a distribution center, storage facility, or large volume customer that is not down-stream from a distribution center;
(2) Has an MAOP of 20 percent or more of SMYS;
(3) Transports gas within a storage field; or
(4) Is voluntarily designated by the operator as a transmission pipeline.