As of June 2016,  both the Maui and Vector pipelines came under the ownership of First Gas Limited (First Gas). First Gas aims to introduce a single new gas transmission access code (GTAC) on 1 April 2020, to replace the existing two codes, the Maui Pipeline Operating Code (MPOC) and Vector Transmission Code (VTC).

The Current Arrangements section notes that until the GTAC comes into effect, the existing access arrangements are (substantially) defined by the MPOC and VTC, and links to the relevant documents are provided.

The Developing section notes that the GTAC development work has overtaken our previous work in relation to transmission pipeline access. However, many of the GTAC innovations are in response to problems identified by that work. For completeness, we retain an archive of our earlier work in the Background section.