This Tariff Concession Order (TCO 1137380) declares that certain refrigeration oil separators/filters (Customs classification 8421.39.00) fall under item 50 of Part III, Schedule 4 to the Customs Tariff Act 1995 from 7 November 2011 until revoked under sections 269SC or 269SD. The delegate of the Chief Executive Officer (David Mulcair) made the declaration. It changes which Schedule 4 item applies to those imported goods, affecting their customs tariff treatment and the importers' compliance and cost decisions.