This Tariff Concession Order, made under s.269P of the Customs Act 1901 by a delegate of the Chief Executive Officer, applies Schedule 4 Item 50 of the Customs Tariff Act 1995 to “FILTERS, INERTIAL, VORTEX TUBE, LOCOMOTIVE” (tariff classification 8421.39.00). It is effective from 13 May 2008 and continues until revoked under ss.269SC or 269SD. Mechanically, importers using that classification can rely on the Schedule 4 concession (reduced or nil duty); the decision and any revocation are administrative acts by the delegated officer.