On 22 June 2017, NBN Co formally withdrew its original SAU variation lodged with the ACCC on 27 May 2016. NBN Co simultaneously lodged a new proposed variation to its SAU (revised SAU variation). On 2 August 2017, the ACCC released a consultation paper on the revised SAU variation.
On 9 October 2017, the ACCC published a statement providing an update on the assessment of the SAU variation and to advise it was putting its assessment on hold. On 26 October 2018, NBN Co formally withdrew its revised SAU variation.