What are the requirements for upgrading from a C1 to a B1 license?

[DelEmery]

The requirements for upgrading from a C1 to a B1 license are: 1. The C1 license must have been held for at least 3 years; 2. The applicant must be between 21 and 50 years old, with a height of at least 155cm; 3. No full-point penalty record in the last 3 scoring cycles before application; 4. The ID card, driver's license, and residential address information must be consistent. The process for upgrading from C1 to B1 is: 1. Apply for the B1 driving category upgrade at the local vehicle management office of the household registration area; 2. Fill out the application form, submit the ID card and physical examination form, and provide the current motor vehicle driver's license; 3. Attend the theoretical and practical exams as scheduled; 4. The new driver's license will be issued by the applying vehicle management office within 7 working days after passing the exams.