"Unaa": To upgrade your driver's license category, you need to undergo retraining
For drivers with categories B and C licenses who wish to obtain subcategory licenses B1 or C1, a practical exam will also be required. This was announced by the State Center for Vehicle Registration and Driver Licensing. According to the agency's information, if a citizen with a category B license wants to upgrade their category, for example, to C or D, they must complete a three-month retraining course.