This Tariff Concession Order (TCO 0917345) says that imported polypropylene trolley bins meeting the listed physical specs are to be treated as goods covered by item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, effective 22 May 2009 until revoked. Mechanically, that makes those specific bins eligible for the tariff concession set out in Schedule 4. It primarily affects importers and suppliers of those bins (who may pay reduced customs duty if item 50 provides a concession); the concession is granted by a Customs delegate and can be revoked under the Act.