This Order applies a tariff concession (Part III, Schedule 4 item 50) to imported brake fluids based on polyglycols classified at tariff heading 3819.00.00, effective 15 March 2007 until revoked. It affects importers by making those specific goods eligible for the Schedule 4 concession (reducing customs duty liability), requires correct tariff classification and matching the product description (Column 1), and is made or revoked by a Customs delegate under section 269P and sections 269SC/269SD of the Customs Act 1901.