This Tariff Concession Order applies item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995 to imports described as “niobium shell and tube heat exchangers, pickle line” (Tariff heading 8419.50.90). It takes effect from 13 Feb 2006 and remains until revoked. The decision is made under s.269P of the Customs Act 1901 and can be revoked under ss.269SC–269SD. The instrument changes tariff treatment for importers and thus affects import costs, customs receipts and downstream users of the specified goods.