This Tariff Concession Order (TCO 1138151) declares that ‘parts, rolling mill main drive, being AC motor stators’ (tariff heading 8503.00.00) are to be treated as goods to which Part III of Schedule 4, item 50 of the Customs Tariff Act 1995 applies, effective 15 November 2011 until revoked (see s.269P of the Customs Act 1901 and ss.269SC/269SD). Mechanically, it changes the customs tariff treatment of imports of these motor stators so the Schedule 4 concession applies, affecting the customs duty payable and therefore importers’ costs; the decision is made by a delegate and may be revoked.