This Order declares that a narrowly described type of vertical twin-shaft stainless‑steel mixers (three‑dimensional spiral upward flow and horizontal crossflows, capacity up to 5,000 litres) are subject to Schedule 4, Item 50 of the Customs Tariff Act 1995 from 18 December 2009 until revoked. Mechanically, it treats imports of those specific mixers as eligible for whatever tariff treatment Item 50 provides. It affects importers (who bear or avoid customs duties), requires proof the goods match the description, and was made by a delegate of the Chief Executive Officer.