The ERA approved and published Final Technical Rules for Western Power’s regulated electricity networks in the South West Interconnected System to come into operation on 1 July 2007.
The Final Technical Rules published by the ERA are based on the draft technical rules that have been amended, in consultation with Western Power, to ensure that they are efficient, consistent and comply with the Code. The Final Technical Rules also take into consideration submissions received from interested parties, the Technical Rules Committee’s Final Report and advice from the ERA's technical advisors PB Associates and McGill Engineering Services.