This Tariff Concession Order applies Schedule 4 Item 50 of the Customs Tariff Act 1995 to a specific imported product — “coolers, optoelectric circuit board equipment rack, fan forced” (classified 8414.59.90) — effective 20 December 2005 until revoked. Mechanically, it changes the customs tariff treatment for that precise item so importers will be charged (or exempted) according to the Schedule 4 item rather than the default heading.
It affects importers of that product (who bear the tariff consequence) and is issued by a delegate of the Chief Executive Officer; revocation is via the Act’s revocation process.