What are the requirements for upgrading a car license?

[OscarLee]

The conditions for upgrading a car license are that the driver must have held a valid license for driving city buses, large trucks, small cars, small automatic transmission cars, low-speed trucks, or three-wheeled vehicles for more than three years, and must not have accumulated 12 penalty points in any of the three scoring cycles prior to the application. Below are the extended details: Conditions for upgrading to a tractor license: The driver must have held a valid license for driving medium-sized buses or large trucks for more than three years, or have held a valid license for driving large buses for more than one year, and must not have accumulated 12 penalty points in any of the three scoring cycles prior to the application. Conditions for upgrading to a large bus license: The driver must have held a valid license for driving medium-sized buses or large trucks for more than five years, or have held a valid license for driving tractors for more than two years, and must not have accumulated 12 penalty points in any of the five scoring cycles prior to the application. For upgrading to A or B class licenses, the application must be submitted in the driver's registered residence location.