This Order declares that certain valves for passenger train brake systems (two‑way, levelling, magnet valves and ballcocks) classified at tariff heading 8481.20.00 are goods to which Item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995 applies, effective 15 March 2010 and continuing until revoked. It changes the tariff treatment of those imported parts, affecting importers, suppliers and customs revenue by altering the duty outcome and creating an administrative requirement to classify imports consistently.