This Tariff Concession Order declares that imported polyethersulfone baby bottles (with or without baby teats or cups) are treated under Item 50 of Part III of Schedule 4 to the Customs Tariff Act 1995 from 1 August 2011 until revoked. Mechanically, it changes the tariff treatment applied at the border to those goods, affecting importers and customs administration and creating an administratively verifiable classification (tariff code 3924.90.00). The order is revocable by the Commissioner under the Customs Act provisions cited.