Mechanically, this Tariff Concession Order (TCO) declares that goods described as “PARTS, TRANSMISSION POWER LINE, being wire” under tariff code 8544.60.90 are to be treated under item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, changing how those imports are dealt with at the border. It takes effect from 11 Oct 2007, was made by a delegate under s269P of the Customs Act 1901 (signed 11 Apr 2008), and continues until revoked under ss269SC/269SD. The practical actors are importers (classification/tariff treatment) and the customs delegate (decision and revocation).