This Tariff Concession Order declares that a specific type of grease pump (rotary hydraulic drive, positive displacement, double acting) classified at 8413.50.90 is subject to the tariff treatment set out at Item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, effective 28 March 2011 until revoked. The declaration was made under s.269P by a CEO delegate and can be revoked under ss.269SC or 269SD. Importers of these pumps receive the Schedule 4 Item 50 treatment; they must classify goods correctly and rely on customs to apply the concession.