The main function is to prove the professional skill level of the holder. After the cancellation of the coach certificate, the professional qualification is the only legal and compliant national professional qualification in the driving and training industry.

The vocational qualification certificates of motor vehicle driving coaches are divided into four levels (national vocational qualification level 4), three levels (national vocational qualification level 3), two levels (national vocational qualification level 2) and one level (national vocational qualification level 1).

The lowest is a four-level motor vehicle driving coach (national vocational qualification level four), which is equivalent to the intermediate driver level. The highest is the first-class motor vehicle driving coach (national vocational qualification level 1), which is equivalent to the senior technician level of motor vehicle drivers.