This Tariff Concession Order (made under s.269P of the Customs Act 1901) declares that valves incorporating both a conical discharge valve and a disc suction valve are covered by item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995 from 27 Sep 2011. Mechanically, imports of those specific valves are treated under that Schedule 4 item (affecting the customs tariff applied). It affects importers (who must show the goods match the description) and was made by a delegate of the Chief Executive Officer; it remains in force until revoked.