This Tariff Concession Order (effective 12 July 2006) declares that specific ventilators (Tariff heading 8414.59.90: IP44 compliant and with noise 65–75 dB(A)) fall under Part III, Schedule 4, item 50 of the Customs Tariff Act 1995. It was made under s.269P of the Customs Act 1901. Mechanically, importers of matching ventilators may claim the Schedule 4 concession (altering applicable customs duty); the concession was granted by a delegate and can be revoked under ss.269SC–269SD, so qualification depends on meeting the listed technical description.