Mechanically, this Tariff Concession Order (TCO 0718003) declares that 'hot runner' tooling (classified 8477.90.00) used as domestic refrigerator component dies and/or moulds qualifies for the concession set out at item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, effective 22 October 2007 (made under s.269P of the Customs Act 1901 and continuing until revoked under ss.269SC/269SD). This reduces the import duty cost faced by importers of those parts while placing reliance on Customs' classification, the delegate's declaration, and the revocation process.