Flying school Fly For Fun has certification from Institute of Civil Aviation for ICAO Language Proficiency exams. Its goal is to check your ability of communicating in english.
Every pilot who wants to absolve IR english exams must absolve this course. This exam is required for instrument flying.
Since 5.3.2008, pilots of airplanes, airships, helicopters and aircrafts with powered lift, air traffic controllers and aeronautical station operators must demonstrate the ability of expressing and understanding in the language used in radio communication at the level specified in the requirements for language skills, which are listed in Appendix 1