This Order declares that relay air‑brake valves for trucks or trailers (tariff classification 8481.80.90) are subject to item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995, with effect from 20 March 2008. It was made by a delegate under s.269P of the Customs Act 1901 and remains until revoked under ss.269SC/269SD or any date in the Table. Practically, importers of the listed valves receive the tariff treatment set out by Schedule 4 item 50; customs authorities control application and revocation.