This Order declares that certain cooling towers (classified at 8419.50.90) are goods to which item 50 of Part III of Schedule 4 to the Customs Tariff Act 1995 applies, effective 13 November 2006 until revoked under sections 269SC or 269SD. Mechanically, it changes which tariff-schedule item governs those imports (decision made by a CEO delegate under s269P). It affects importers and customs officers by altering tariff treatment, import paperwork and duty-related outcomes; compliance and administrative choices will follow.