This Tariff Concession Order (TCO 0927984) applies item 50 in Part III of Schedule 4 of the Customs Tariff Act 1995 to hydraulic make-up and break-out machines classified at tariff code 8479.89.90, effective 3 August 2009 until revoked under ss 269SC or 269SD or any listed end date. Mechanically, it changes the customs duty treatment for imports of those machines. Importers gain the tariff treatment set by item 50; the Commissioner’s delegate (under s 269P) can revoke the order and importers must correctly classify goods to claim the concession.