This Tariff Concession Order declares that certain quick‑connect hose fittings (classified at 7307.99.00) are covered by item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, effective 21 December 2007 until revoked. Mechanically, it changes the legal customs treatment that applies to those listed components. It affects importers, suppliers and customs officers by altering the applicable tariff treatment, imposes a duty on correct product classification for compliance, and leaves revocation to administrative discretion (see s.269P; ss.269SC–269SD).