The airport operator at Heathrow funds the staffing of Fast Track Immigration Controls. Fast Track offers travellers selected by participating airlines a discrete channel to the Immigration Control. The decision about who receives a fast track ‘ticket’ for this service is not an immigration one. Further discussions are ongoing at Luton, Stansted and Gatwick with a number of airlines and airport operators who have offered additional financial assistance for Primary Arrival Control services. However, due to the commercial nature of these discussions the details of the organisations cannot be disclosed.