On 18 October 2016, ARTC applied to the ACCC to extend the term of its 2011 Hunter Valley Access Undertaking by a further six months to 30 June 2017.
On 19 October 2016, the ACCC sent a letter to industry seeking comments on ARTC's proposal. Submissions were due by 2 November 2016.
On 23 November 2016, the ACCC consented to ARTC's revised variation application.