This Tariff Concession Order (declared under s.269P of the Customs Act 1901) treats parts of split‑system, reverse‑cycle air‑conditioners — air‑cooled condensers with an octagon accessible hermetic compressor — classified at 8415.90.00 as falling under item 50 of Part III of Schedule 4 to the Customs Tariff Act 1995, effective 10 March 2009. It affects importers by changing tariff treatment for those parts, operates until revoked by the CEO or delegate under ss.269SC–269SD, and was declared by a delegate (Wendy Knowles) on 29 May 2009.