This Order treats a specific fuel-delivery system for gas turbines (Dry Low NOx, skid‑mounted, with either stop/ratio valves or gas control valves; tariff classification 8481.80.90) as falling within item 50 of Part III, Schedule 4 to the Customs Tariff Act 1995, effective 18 July 2008. Mechanically, the delegate (under s.269P) applies that Schedule 4 tariff treatment to those imports, so importers and suppliers face changed tariff liability and associated compliance; the Order may be revoked under ss.269SC–269SD.