Tariff Concession Order 0611315 declares that specific boiler parts (framed evaporator vibrating tubes; tariff heading 8402.90.00) qualify for a Schedule 4, Part III (item 50) concession under the Customs Tariff Act 1995 from 4 July 2006 until revoked. It affects importers of those parts by removing or reducing customs duty when the concession applies, shifts costs from importers to foregone tariff revenue, and requires importers and customs to apply and verify the stated classification and concession.