In what intervals shall language proficiency be demonstrated?
The ICAO Standards on language proficiency require that aeroplane and helicopter pilots, air traffic controllers and aeronautical station operators who demonstrate proficiency below the Expert Level (Level 6) shall be formally evaluated at intervals in accordance with an individual’s demonstrated proficiency level. The interval will have to be established by each Civil Aviation Authority. ICAO is recommending an interval of six years for those at the Extended Level (Level 5) and three years for those at the Operational Level (Level 4).