What are the requirements for upgrading from a C1 to an A3 driver's license?

[Thompson]

The requirements for upgrading are as follows: Age: Must be at least 21 years old. Residency: Must study in the place of residence (within the prefecture-level city of the registered residence). Study is not permitted in temporary residence locations. If the original driver's license is from another region, it must be transferred back to the original place of residence, and study must be conducted there. Physical conditions: For large vehicles, the height must be at least 1.55 meters; for A3, corrected vision must be 5.0. Must have held a C1 driver's license for at least one year. No record of accumulating 12 penalty points in a single scoring cycle. C1 Driver's License: The C1 driver's license is one of the codes for motor vehicle driver's licenses. The scope of vehicles permitted under a C1 license includes small and mini passenger vehicles, as well as light and mini cargo vehicles; light, small, and mini special-purpose vehicles; and small passenger vehicles with a seating capacity of 9 or fewer people. Application Age: The minimum age requirement for a C1 driver's license is 18 years old, with no upper age limit. However, applicants aged 70 or older must pass tests for memory, judgment, and reaction abilities.