This Tariff Concession Order (TCO 0703038) declares that 'couplings, fluid, turbo' classified at tariff heading 8483.60.90 are goods to which Part III item 50 of Schedule 4 to the Customs Tariff Act 1995 applies, effective 26 Feb 2007. Importers of these specific couplings must rely on this classification to claim the Schedule 4 treatment; the order was made by a delegate of the CEO (Michael Perry) and can be revoked under sections 269SC/269SD, creating a compliance and administrative requirement for affected importers.