Mechanically, this Tariff Concession Order declares that "inserts, reamer, synthetic diamond enhanced" (tariff heading 6804.21.00) are goods to which item 50 of Part III, Schedule 4 of the Customs Tariff Act 1995 applies, effective 28 Nov 2008 (made under s.269P). That means the tariff treatment specified at that Schedule item applies to imports of these goods. It affects importers (who receive the Schedule 4 treatment) and Customs administration; the order remains in force until revoked under ss.269SC–269SD.