Instructions: In this task, you will be given a passage to read. A fill in the blank question will be given to you.  Your answer should fit the blank appropriately.
Input: The pilot qualification most relevant to GA is the Private Pilot Licence ( PPL ) , which permits the holder to fly for recreational purposes without remuneration . In addition to the European @-@ wide Joint Aviation Regulations Flight Crew Licensing ( JAR @-@ FCL ) standard , the CAA also issues UK @-@ specific national licences . In the absence of European standards for gyroplane , balloon , and airship pilots , the CAA licenses these according to the original UK PPL standard . As a response to the perception that JAR pilot licensing standards are excessively bureaucratic and expensive for the purposes of recreational pilots , the National Private Pilot Licence ( NPPL ) was introduced in 2002 . The NPPL is easier to obtain than the JAR @-@ FCL licence , has less stringent medical requirements , is more restrictive in the privileges it grants , and is valid only for flights in British @-@ registered aircraft flying in UK and French airspace . Although there are plans to bring glider pilot licensing within the regulatory framework of EASA , the gliding sector is currently self @-@ regulating in this respect . The British Gliding Association is responsible for defining the standards of initial training , and certifying , via a badge system , pilots who meet those standards . Pilots working in sectors of GA that are commercial operations , such as aerial work and business aviation , are required to hold a professional pilot licence which , at a minimum , is the Commercial Pilot Licence . fill in the blank  : The pilot qualification most __________________ to GA is the Private Pilot Licence ( PPL ) , which permits the holder to fly for recreational purposes without remuneration . 
Output:
 relevant 