This Tariff Concession Order applies Item 50 of Part III of Schedule 4 (Customs Tariff Act 1995) to a specific import line: "valves, goggle and/or isolating, blast furnace" (tariff 8481.80.90), effective 2 November 2005 and continuing until revoked. It was made by a delegate of the CEO under the Customs Act 1901. Importers of these valves are affected because the order changes their tariff treatment; the customs CEO/delegate decides, and importers must classify goods correctly and monitor for revocation.