Tariff Concession Order 0601822 applies Schedule 4, Part III item 50 to imports classified at tariff code 8417.90.00—parts for walking-beam furnaces (thermic screens; cell supports; tank breathers). It took effect 5 January 2006 and stays in force until revoked (made under s269P of the Customs Act 1901; revocable under ss269SC/269SD). Importers and manufacturers of these parts are affected because the order changes the customs duty treatment; the decision was made by a delegate of the CEO (Susan Campbell).