Mechanically, this Order applies Part III, Schedule 4 item 50 of the Customs Tariff Act 1995 to a specific tram-car bogie (HS 8607.12.00) described in the Table, effective 15 September 2011 until revoked. That changes the tariff treatment that applies to imports of that particular bogie; importers (or their suppliers) are the parties whose payable customs duty is affected and the Chief Executive Officer (or a delegate) decides revocation, which alters the commercial incentives for importing that component.