As used for gas, a bilateral contract between a developer and National Gas Transmission (NGT) that allows long term national transmission system (NTS) capacity to be reserved while a project is being developed before the developer commits to buy the capacity. A PARCA does not provide the developer with a connection to the NTS. The PARCA framework replaces the Advanced Reservation of Capacity (ARCA) for NTS exit capacity and the Planning Consent Agreement for both NTS exit and entry capacity. For more information on NGT and the NTS, see Practice note, Downstream gas industry: overview.