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Introduction - What is ICAO training and why is it important?

The ICAO (International Civil Aviation Organization) is a global organization that develops standards and recommendations for aviation. The aim is to make international air traffic safe, orderly and efficient.

A central point here is standardized communication in radio traffic – especially in English. This is because errors in radio communication are one of the most common causes of misunderstandings and dangerous situations in the cockpit.

To avoid this, pilots and air traffic controllers must regularly train their language skills and improve them in accordance with ICAO standards. This is exactly where our training comes in.

ICAO Language Proficiency - Language competence for international radio communication

Anyone flying in international airspace must be able to communicate in English by radio. The ICAO has introduced a globally standardized assessment system for this purpose: the Language Proficiency Rating.

It assesses the language proficiency of pilots and air traffic controllers on a scale from level 1 to 6, with at least level 4 required for participation in aeronautical radio. The main focus is on comprehensibility, listening comprehension, fluency, vocabulary and grammar – not just technical terms.

What is the goal?

The aim is to ensure that you can communicate in English in a clear, structured and understandable way, even in stressful or confusing situations. This includes moments with high radio traffic, technical faults, time pressure or even real emergencies. Especially in such situations, it is crucial that you remain calm, use the right terms and convey information clearly – without misunderstandings, delays or uncertainty.

It doesn’t matter what accent your conversation partner has or whether English is not their first language. You should learn to concentrate on the essentials, recognize typical speech patterns and express yourself in such a way that you are understood worldwide. Because effective communication is a central component of flight safety – and that’s exactly what we want to prepare you for.

Die ICAO Sprachlevel (1–6)

LevelMeaning
1–2Not operational – no approval for international radio
3Almost there. Unfortunately not passed. But you’re close.
4OPERATIONAL – Minimum requirement for international aeronautical radio
5EXTENDED – recommended for professional pilots. Better job opportunities
6EXPERT – no retesting necessary. Some airlines (e.g. KLM/BA) require this

What is being tested / practiced?

The following skills are assessed in a standardized test:

Validity of the certificates

LevelValidity of the certificates
4Valid for 4 years – renewal required thereafter.
5Valid for 6 years – renewal required thereafter.
6Valid indefinitely – no renewal necessary

Attend

Training

Take

Exam

Receive

Certificate

Book your personal ICAO training now – for more safety on the radio, clear communication and a confident appearance in international air traffic. You’ll be well prepared for any situation – especially for your exam!

Contact the GAT team

Do you have questions about our courses, the ICAO language exam or other offers? Or would you like to cooperate with GAT?

Then simply write to us – we look forward to hearing from you!