On 14 August 2025, the AER submitted a rule change request to the AEMC requesting an amendment to the NER to enable a revised STPIS to apply to a TNSP before the end of a TNSP's regulatory control period. 

The AER has requested this rule change proposal be “fast tracked” under Division 3 of the National Electricity Law following consultation already undertaken with stakeholders on the nature of the problem as part of the AER’s review of the STPIS which was completed in April 2025.