This Order applies a specific tariff concession (Schedule 4, Part III, item 50) to certain imported parts for 'roll end coupling' — swivel rod seals, piston seals and axial face seals — from 9 June 2006 until revoked. Mechanically, it changes the customs tariff treatment for those goods so importers receive the Schedule 4 treatment rather than the default heading 8484.90.90 duty. It was made by a delegate of the Chief Executive Officer under section 269P of the Customs Act 1901 and remains in force until formal revocation under ss 269SC or 269SD.