Mechanically, this Tariff Concession Order declares that refined-copper capillary fittings (Tariff heading 7412.10.00) with internal diameter not greater than 26 mm are subject to Item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, effective 08.07.2009 and continuing until revoked. It directly affects importers of those fittings and customs decision-makers by changing the tariff treatment (and therefore import duty consequences) for the specified goods; the declaration is made under s.269P and may be revoked under ss.269SC or 269SD.