This Tariff Concession Order (made under s269P of the Customs Act 1901) declares that certain air‑insulated switchboards (tariff classification 8537.20.90) are covered by item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, so the Schedule 4 tariff treatment applies to those imports from 30 August 2010 until revoked (ss269SC/269SD). It affects importers and suppliers of high‑voltage switchboards, who must show the goods meet the precise technical description in Column 1 to claim the concession; the decision is made by a delegate of the CEO (Michael Perry).