This Order applies Part III, Schedule 4 item 50 of the Customs Tariff Act 1995 to “Axle and final drive assemblies, rail locomotive” (tariff classification 8607.91.00), effective 3 October 2008 until revoked under the Customs Act. Mechanically, the Order brings those imported locomotive parts within the referenced tariff-concession item. Practically, importers or manufacturers of the specified parts are the direct beneficiaries; the concession changes the tariff treatment, with corresponding effects on revenue and importer compliance obligations.