 Most aerodromes used for public transport operations are required to be licensed by the CAA . To be granted a licence an aerodrome operator must satisfy the CAA that : the physical conditions at the aerodrome , and its environs , are acceptable ; the scale of equipment , and facilities provided , are adequate for the flying activities which are expected to take place ; an effective safety management system is in place ; and that staff are competent and , where necessary , suitably qualified . <unk> classified as developed GA airfields or larger by the GASAR study are , with few exceptions , licensed . Only two basic GA airfields , Silverstone and <unk> , are licensed , and all airstrips are unlicensed . The Light Aviation Airports Study Group , a joint CAA @-@ industry initiative , was established in 2005 to review the regulation of light aviation aerodromes . A particular focus of this group was a review of the restrictions placed on unlicensed aerodromes . The group concluded that the requirement for public transport operations to be conducted only from licensed aerodromes should be further reviewed in the context of corresponding international and European requirements . It also recommended that restrictions on flight training at unlicensed aerodromes should be lifted , and this was permitted from April 2010 
