How long after obtaining an A1 license can you drive a large bus?

[VanRiver]

You can drive a large bus immediately after obtaining an A1 license. For those newly obtaining a license for large buses, tractors, city buses, medium-sized buses, or large trucks, within 30 days after the probation period ends, they must take a test on road traffic safety laws and regulations, safe and civilized driving, emergency handling, and other knowledge, and receive no less than half an hour of case-based education on traffic accident warnings. Below are the precautions for driving vehicles: 1. Vehicle types not allowed to be driven during the probation period: During the probation period, motor vehicle drivers are not allowed to drive buses, commercial passenger vehicles, or vehicles on duty such as police cars, fire trucks, ambulances, engineering rescue vehicles, or vehicles carrying explosives, flammable and explosive chemicals, highly toxic, or radioactive materials; the driven motor vehicle must not tow a trailer. 2. Not allowed to drive alone on highways during the probation period: When driving a motor vehicle on a highway during the probation period, the driver must be accompanied by someone who has held a driver's license for the corresponding or higher vehicle type for more than three years.