**Official Rulings:** - Ensuring safety at airfield infrastructure maintenance work - Air traffic control activities, at airports and for long distances
This class includes: - activities related to air transport of passengers, animals or freight: . operation of terminal facilities such as airway terminals etc. . airport and air-traffic-control activities . ground service activities on airfields etc. This class also includes: - fire fighting and fire prevention services at airports
This class excludes: - cargo handling, see 52.24 - operation of flying schools, see 85.32, 85.53