This Order declares that a specific imported part — “minimum flow control valves, boiler feed pump, recirculation” (tariff code 8481.80.90) — is covered by Item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, effective 28 October 2009 until revoked. Mechanically, it alters the customs tariff treatment of those imports (the import duty treatment specified by Schedule 4 Item 50 applies). It affects importers (who face the changed duty), and can be revoked by the customs delegate under ss 269SC/269SD, creating administrative discretion and a compliance requirement to classify goods correctly.