This Tariff Concession Order (TCO 0808302) declares that imported "couplers and/or nipples, having a ball valve or poppet valve" (tariff heading 8481.80.90) are subject to the item in Part III of Schedule 4 (item 50) of the Customs Tariff Act 1995 from 15 May 2008 until revoked (made under s269P of the Customs Act 1901). Practically, it changes the tariff treatment importers must use for these goods and shifts compliance and classification tasks onto importers while leaving revocation power with the administration.