This Order applies a tariff concession (Schedule 4, Item 50 of the Customs Tariff Act 1995) to rotors for synchronous motors classified at 8503.00.00, effective 17 May 2006, made under section 269P of the Customs Act 1901. It changes how customs duty is applied to those imported rotors. The measure affects importers (lower or altered duty payable) and government revenue, was made by a delegate of the CEO, remains in force until revoked, and creates an administrative obligation to justify classification and eligibility.