This Order (TCO 0718991) says that imported folded yarns of polyamide staple fibres that contain at least 30% meta-aramid staple fibres (tariff classification 5509.12.00) are covered by item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995. It took effect on 15 November 2007 and runs until revoked. Importers gain the tariff concession; the Commonwealth forgoes the corresponding tariff revenue. Classification, composition testing, and administrative review under the Customs Act determine who qualifies.