This Order (under s269P of the Customs Act 1901) declares that specific bucket-loader parts — “arrowhead” and “half arrowhead” wear edges, classified at 8431.49.90 — are to which item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995 applies, effective 05.10.2007 and continuing until revoked (ss269SC/269SD) or a date shown in the table. Mechanically, it changes the tariff treatment for importers of those parts; the concession is applied by a CEO delegate and can be withdrawn under the cited revocation provisions.