1. ICAO has specified English Language Proficiency requirements, and mandated that these requirements shall be effective from 5th March 2008. There are 6 (six) levels of Proficiency in the requirments (refr to Appendix 1 of ICAO Annex 1)
2. In accordance with the requirments, Pilots and Air Traffic Services Personnel shall demonstrate a minimum proficiency of at least Operational Level ‘4’ of both ICAO Standard Phraseology and plain language, to be issued with or to maintain their respective licences.
3. The requirements further indicate that Pilots and Air Traffic Services Personnel who have not been rated at Level ‘6’ proficiency shall be tested for English Language Proficiency at regular intervals to ensure that they remain proficient at the required level.