What are the exam contents for upgrading from C1 to B1?

[MacJosiah]

If you want to upgrade from a C1 driver's license to a B1 driver's license, you need to take three subjects, with the contents as follows: Subject 1: Examination on road traffic safety laws, regulations, and related knowledge; Subject 2: Field driving skills test; Subject 3: Road driving skills examination and safety and civilized driving common sense test. C1 Driver's License: The C1 driver's license is one of the codes for motor vehicle driver's licenses. The scope of vehicles allowed to be driven with a C1 license includes small and micro passenger vehicles, light and micro cargo vehicles; light, small, and micro special operation vehicles; and small passenger vehicles with a seating capacity of 9 or fewer people. Application Age: The minimum age limit for a C1 driver's license is 18 years old, with no upper age limit. However, applicants aged 70 and above must pass tests on memory, judgment, and reaction abilities.