This Tariff Concession Order, made by a delegate of the Chief Executive Officer under s.269P of the Customs Act 1901, declares that specific extruded multivoid condenser tubes (7604.21.00, thickness ≤1.72 mm, void pitch ≤0.76 mm) are goods to which item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995 applies, effective 24 March 2006 until revoked. Mechanically, it changes the tariff treatment applied at import for those narrowly defined goods. It affects importers (who bear duty/price effects) and customs authorities; the delegate/Commissioner controls duration and revocation (ss.269SC/269SD).