This Order, made under section 269P of the Customs Act 1901, declares a specific class of resin dryers (hoppers; dual desiccant towers; gas fired; tubular air diffusers) to be subject to item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995 from 13 December 2005 until revoked. Mechanically, it changes how those imported machines are treated at the border (the Schedule 4 item applies), so importers of the listed dryers should classify imports accordingly and will face the tariff treatment tied to that Schedule 4 item.