This Tariff Concession Order declares that detonational pressure boosters (Customs classification 3603.00.00) are goods to which Part III of Schedule 4, item 50, of the Customs Tariff Act 1995 applies. It takes effect from 6 June 2005 and continues until revoked under sections 269SC or 269SD of the Customs Act 1901. Mechanically, it requires importers and customs officials to treat these imports under Schedule 4 item 50. The order was made under s269P by a CEO delegate (Michael Perry; dated 21 October 2005).