This Order applies the tariff concession in Part III of Schedule 4 of the Customs Tariff Act 1995 to a narrowly described class of composite line‑post insulators (silicone rubber; epoxy fibreglass rod; cast steel end fittings; minimum capacity ≥132 kV), effective 20 June 2007 until revoked. It is made by a delegate of the Chief Executive Officer under section 269P. Importers and suppliers of these insulators are affected because their tariff treatment under Schedule 4 changes; compliance requires matching the technical description and is subject to administrative revocation.