On 29 April 2013, the AER released its decision to approve the access arrangement (including the terms and conditions and access arrangement information) drafted by the AER for SP AusNet's gas distribution network for the regulatory period 1 January 2013 to 31 December 2017.

On 21 June 2013, the AER varied Part B of the access arrangement to correct a drafting error. The variation is detailed in the AER's letter to SP AusNet dated 21 June 2013.