What type of driver's license does B1B2 downgrade to?

[MacRichard]

b1b2 downgrades to a b2 driver's license. Information about b1b2 is as follows: 1. b1: The permitted vehicle type is medium-sized passenger cars; the permitted vehicles are medium-sized passenger cars; other permitted vehicle types include C1, C2, C3, C4, and M. 2. b2: The permitted vehicle types are heavy-duty, medium-duty trucks or large, heavy, and medium-duty special-purpose vehicles. Heavy-duty and medium-duty trucks are mainly trucks. Information about driver's licenses is as follows: 1. Driver's license: (full name: motor vehicle driver's license), also known as a 'driver's license,' is a document issued by the government transportation department to individuals who meet the driving qualifications, usually in the form of a card. 2. Obtaining: To obtain a driver's license, one must meet the minimum age requirement and pass the driving test. The driver's license usually specifies the types of motor vehicles the holder is permitted to drive, such as motorcycles, passenger cars, trucks, buses, etc.