Declares that certain convection-and-steam ovens (Customs Tariff classification 8419.81.90) with not less than five trays or racks are subject to item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, effective 4 Jan 2007 (s.269P; revocation ss.269SC–269SD). Practically, it alters the tariff treatment of those imported ovens, affecting the customs duty payable; the instrument is made by a delegate of the Chief Executive Officer and requires importers to classify goods correctly to use or be subject to the concession.