On 18 April 2018, APA Group submitted to the AER a draft annual tariff variation notice for the Central Ranges Gas transmission pipeline. On 30 April 2018, APA Group submitted a revised notification which updated for CPI and X factor. The tariff variation notice sought to increase 2018-19 network charges for Central Ranges Gas transmission pipeline users from 1 July 2018.
On 7 June 2018, the AER published the approved 2018-19 tariff variation for Central Ranges Gas Pipeline (transmission). This is the final year of Central Ranges current access arrangement.