This Tariff Concession Order (TCO 1131715) declares that certain mechanical seals (classified 8484.20.00) meeting a continuous spray pressure range of 1,600–3,800 bar are goods to which Part III, Schedule 4, item 50 of the Customs Tariff Act 1995 applies (made under s.269P of the Customs Act 1901). It took effect 16 Sep 2011 and remains until revoked (ss.269SC/269SD). Practically, it changes the tariff treatment of those imported seals, so importers and customs officers must identify the specified technical features to apply the Schedule 4 treatment.