This Order declares that a specific refractory roofing product (tariff classification 6902.20.00) containing at least 80% aluminium oxide is eligible for the tariff concession listed at Schedule 4 item 50, effective 15 December 2009 until revoked (s.269P). It affects importers and Customs: importers may pay lower or no duty and the Commonwealth forgoes tariff revenue; the CEO’s delegate made the determination. Compliance requires meeting the product specification and the customs classification; revocation can occur under ss.269SC–269SD.