What is ICAO English Level 6?
ICAO English Level 6 is highest rating of language proficiency qualification evaluated in accordance with ICAO Doc 9835 rating scale. Once pilot obtains ICAO English Level 6, it is valid for lifetime. However other requirements such as medical certificate, typerating and other due qualifications shall be valid in order to exercise the privileges of ICAO English level 6.
Refer also to ICAO English level 6 language descriptors.