On 15 March 2013, the AER released its final decision not to approve SP AusNet's revised access arrangement proposal. The AER has proposed a number of revisions to SP AusNet's access arrangement. The AER will make a decision giving effect to its own proposal within two months of this final decision. 

The AER has also released a Guide to its review of gas network prices, to accompany and explain its final decisions. The purpose of this Guide is to make the AER’s decisions accessible to a wide ranging consumer audience.