On 5 May 2020, ARTC submitted an application to vary its 2008 Interstate Access Undertaking. The variation sought to extend the term of the undertaking to 30 June 2021.
On 11 May 2020, the ACCC sent a letter to stakeholders seeking comments on ARTC's proposal. Submissions were due by 26 May 2020.
On 19 June 2020, the ACCC issued a notice to extend the period of the 2008 Interstate Access Undertaking to 30 June 2021.