This Order declares that certain "shiploaders" (goods classed at tariff heading 8428.90.00 with the listed components) are covered by a Schedule 4 tariff concession (item 50) from 16 September 2005 until revoked. Mechanically, it removes or reduces customs duty for imports that meet the description. Importers and suppliers pay lower import costs; the Chief Executive Officer’s delegate made the decision under section 269P of the Customs Act 1901; compliance requires correct classification and supporting records.