This Tariff Concession Order applies Schedule 4, Item 50 of the Customs Tariff Act 1995 to imports classified as 8421.39.00 — "filters, particulate, diesel engine" — effective 10 December 2009. Mechanically, it changes the customs duty treatment for those specific imported parts. The order was made by a delegate under s269P and may be revoked under ss269SC–269SD, so importers must correctly classify goods and follow Customs procedures to claim the concession (Schedule 4 Item 50; 8421.39.00; s269P; ss269SC–269SD).