This Order declares that specific diving jackets (buoyancy compensators) meeting a list of features are covered by item 50 of Part III, Schedule 4 to the Customs Tariff Act 1995, effective 19 February 2008 until revoked. Practically, importers of those exact products may claim the Schedule 4 tariff concession (reducing or removing customs duty); the declaration was made by a delegate under s.269P and can be revoked under ss.269SC/269SD, so entitlement depends on meeting the listed technical specifications.