Mechanically, this Tariff Concession Order applies Schedule 4 item 50 of the Customs Tariff Act 1995 to imported goods classed 9404.90.00 described as “protectors, mattress, magnetic”, effective 30 May 2007 until revoked. It directly affects importers of those magnetic mattress protectors by changing their customs duty treatment. A delegate of the Chief Executive Officer made the decision under s.269P; importers bear the administrative costs of claiming the concession and meeting customs classification and recordkeeping requirements, and revocation follows ss.269SC–269SD.