On 23 April 2021, ARTC submitted an application to extend the term of its 2008 Interstate Access Undertaking to 30 June 2023.
On 29 April 2021, the ACCC invited public submissions on ARTC's extension application. Submissions were due by 13 May 2021.
On 15 June 2021, the ACCC issued a notice to extend the period of the 2008 Interstate Access Undertaking to 30 June 2023.