On 27 February 2012 the ACCC accepted Telstra’s SSU that commenced on 6 March 2012. Telstra’s structural separation will occur progressively—through Telstra ceasing to supply fixed-line voice and broadband services over its copper and Hybrid Fibre Coaxial (HFC) networks and commencing to supply those services over the NBN as the fibre network is rolled out. The SSU included a number of obligations to promote competition during the interim period from the date that the SSU commenced until the completion of the NBN fibre network. Under its SSU, Telstra commits to supplying financial reports drawn from its Economic Model (TEM), for publication by the ACCC.Since the SSU commenced, Telstra’s structural separation has occurred progressively, through Telstra ceasing to supply fixed-line voice and broadband services over its copper and HFC networks as the NBN fibre network has rolled out.