A C1 license cannot be directly upgraded to an A2 license. If you already hold a C1 driver's license, the fastest way to obtain an A2 license is to upgrade to a B1 or B2 license after holding the C1 license for one year. After obtaining the B1 or B2 license, you must have three years of professional driving experience before you can apply for the A2 license. Therefore, upgrading from a C1 to an A2 license requires at least four years. Alternatively, you can take a second approach by directly obtaining a B2 license. After holding the B2 license for three years with driving experience, you can then upgrade to an A2 license. This method is faster but does not involve upgrading directly from a C1 license. According to the "Regulations on the Application and Use of Motor Vehicle Driving Licenses" (Ministry of Public Security Order No. 123) of the People's Republic of China, the following conditions must be met for upgrading a driving license: Article 14: For those who already hold a motor vehicle driving license and apply to add additional permitted vehicle types, there must be no record of accumulating 12 penalty points in the current scoring cycle and the most recent scoring cycle before the application. For applications to add medium-sized passenger vehicles, tractor-trailers, or large passenger vehicles, the following additional conditions must be met: For applications to add medium-sized passenger vehicles, the applicant must have held a license for urban buses, large trucks, small cars, small automatic transmission cars, low-speed trucks, or three-wheeled vehicles for at least three years, with no record of accumulating 12 penalty points in the three most recent consecutive scoring cycles before the application. For applications to add tractor-trailers, the applicant must have held a license for medium-sized passenger vehicles or large trucks for at least three years, or a license for large passenger vehicles for at least one year, with no record of accumulating 12 penalty points in the three most recent consecutive scoring cycles before the application. For applications to add large passenger vehicles, the applicant must have held a license for medium-sized passenger vehicles, urban buses, or large trucks for at least five years, or a license for tractor-trailers for at least two years, with no record of accumulating 12 penalty points in the five most recent consecutive scoring cycles before the application. In temporary residence areas, the permitted vehicle types that can be added include small cars, small automatic transmission cars, low-speed trucks, three-wheeled vehicles, ordinary three-wheeled motorcycles, ordinary two-wheeled motorcycles, and light motorcycles. Article 15: The following circumstances disqualify applicants from applying for large passenger vehicles, tractor-trailers, medium-sized passenger vehicles, or large trucks: Being responsible for a traffic accident resulting in death with equal or greater liability; Driving under the influence of alcohol; Having a motor vehicle driving license revoked or rescinded within the past ten years. According to the "Permitted Vehicle Types and Codes" (Ministry of Public Security Order No. 139) of the People's Republic of China: The A1 license permits driving large passenger vehicles and allows the holder to drive A3, B1, B2, C1, C2, C3, C4, and M vehicle types. According to the "Permitted Vehicle Types and Codes" (Ministry of Public Security Order No. 139) of the People's Republic of China: The A2 license permits driving tractor-trailers, including heavy and medium-sized full trailers and semi-trailers, and allows the holder to drive B1, B2, C1, C2, C3, C4, and M vehicle types.
