This Tariff Concession Order (TCO 0939172) declares that a specific type of combined test-plug and isolating-angle valve (classified at 8481.80.90 and meeting the listed pressure/flow limits) is to be treated as falling under Item 50 of Part III, Schedule 4 to the Customs Tariff Act 1995, effective 19 October 2009 (made under s.269P). Importers may claim the Schedule 4 tariff treatment that Item 50 provides; the government forgoes corresponding customs revenue, importers must meet the exact technical description and classification, and the Order may be revoked under ss.269SC–269SD.