This Tariff Concession Order (TCO 0512939) declares that imported goods classified at tariff heading 8419.89.90 described as “TOWERS, COOLING, comprising BOTH water jackets and double chambers” are to which item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995 applies, effective 27 Sept 2005. Mechanically, that attaches the Schedule 4 tariff treatment to those imports; the delegate of the Chief Executive Officer made the declaration (s269P) and the order continues until revoked under ss269SC or 269SD, so importers must meet the description to rely on it.