This Tariff Concession Order (TCO 0509609) makes certain 'walking beam furnace extraction' parts (classified at 8417.90.00) eligible for the Schedule 4 concession identified as item 50 in Part III of the Customs Tariff Act 1995, effective 20 July 2005. It was made under s.269P of the Customs Act 1901 by a delegate of the CEO and remains in force until revoked under ss.269SC/269SD or an indicated end date. Mechanically, importers must match shipments to the tariff classification and part descriptions to claim the Schedule 4 treatment.