Approved Language Testing BodyApproved LTB· EE/LTAB/003Results within 12 hours
Level 6 Aviation
Sign in
Book your testBook test
Helicopter pilot wearing a headset in the cockpit

ICAO / EASA English Language Proficiency Levels & Validity

To ensure safe, effective communication worldwide, ICAO and EASA set standardized English proficiency levels for aviation professionals. These standards help pilots, controllers, and ground staff operate confidently and efficiently.

TAKE THE TEST FROM 169€
  • Level 44 YEARS
  • Level 56 YEARS
  • Level 6UNLIMITED

ICAO ENGLISH LEVELS EXPLAINED

ICAO Level 4

ICAO Level 4 (Operational) is the basic international standard for clear and reliable English communication in aviation. At this level, you can understand and give essential instructions accurately, making sure that all critical information is exchanged without confusion. While more complex or unusual situations may still be challenging, reaching Level 4 shows that you have a solid language foundation to support safe and efficient day-to-day operations in a global aviation environment.

LEVEL 4 VALIDITY4 YEARS

LEARN MORE ABOUT LEVEL 4

ICAO vs EASA English — Understanding The Differences

Both ICAO and EASA assess English language proficiency to ensure safe and clear communication in aviation. While they follow similar frameworks, their origins and validity periods differ slightly. ICAO established global standards in 2008 under Doc 9835, while EASA adopted these regulations later for European Union member states.

The main difference lies in the validity of Level 4 certifications: ICAO sets a three-year validity, whereas EASA extends it to four. For Levels 5 and 6, the validity remains the same, with Level 6 offering permanent recognition.

Although professionals often refer to both systems as “ICAO English,” understanding these distinctions is crucial for compliance and career advancement. At Level 6 Aviation, our assessments are recognized across EASA member states, ensuring you meet both international and regional requirements with ease.

ABOUT THE TESTCheck approved countries

Frequently Asked Questions

What is the difference between ICAO Levels 4, 5, and 6?

The levels reflect increasing proficiency in Aviation English. Level 4 indicates operational proficiency, Level 5 shows extended proficiency, and Level 6 demonstrates expert proficiency, comparable to near-native communication skills.

What happens if I don’t pass the test?

If you don’t achieve Level 4, you must retake the test after further practice and training. If you aim for Level 5 or 6 but only achieve Level 4 or 5, a certificate for the level achieved will still be issued, so retaking the test isn’t necessary.

Can non-native English speakers achieve Level 6?

Yes, non-native speakers can reach Level 6 with consistent practice and advanced training in aviation-specific English.

How long does the ICAO English test take?

The test usually takes 30 to 45 minutes, depending on the format.

How should I prepare for an ICAO English test?

Preparation involves practicing real aviation scenarios, improving fluency, and working with targeted training materials such as our question database to strengthen all assessed skills.

FREE TEST SAMPLE