A1 driver's license permits the operation of large passenger vehicles; A2 driver's license allows for driving tractors, heavy and medium-sized full trailers, and semi-trailer combinations; A3 driver's license is for urban buses with a capacity of 10 or more passengers. Class A driver's licenses can be further divided into A1, A2, and A3 types. Requirements for obtaining an A1 license: Since an A1 license can only be obtained through upgrading, one must already possess an A3, B1, or B2 license before applying for an A1 license. After holding one of these licenses for five years, one can apply for an A1 license, provided they have not accumulated 12 penalty points in any of the last five scoring cycles. Additionally, applicants must be at least 26 years old, have a height of at least 155 cm, have uncorrected or corrected vision of at least 5.0, be able to distinguish the direction of a sound source from a tuning fork at 50 cm, have normal physical activity without obvious defects, and meet other specified requirements. Requirements for obtaining an A2 license: An A2 license can only be obtained through upgrading. This means one must first obtain a B1 or B2 license before upgrading to an A2 license. Full-time driving education students can upgrade directly from C1 to A2. Other requirements include: Being at least 24 years old; Height of at least 155 cm, with both thumbs intact, at least three fingers on each hand, and normal hand function; No red-green color blindness, with uncorrected or corrected vision of at least 5.0; Normal body and neck movement, with intact lower limbs and a leg length difference of no more than 5 cm; Holding a B1 or B2 license for at least three years, with no accumulation of 12 penalty points in the last three scoring cycles; or holding an A3 license for at least one year, with no accumulation of 12 penalty points in the last scoring cycle. Requirements for obtaining an A3 license: Age between 21 and 50 years; Height of at least 155 cm; Uncorrected or corrected vision of at least 5.0; no red-green color blindness; Ability to distinguish the direction of a sound source from a tuning fork at 50 cm; Both thumbs intact, with at least three fingers on each hand and normal hand function; Normal body and neck movement, with intact lower limbs and a leg length difference of no more than 5 cm. According to the "Motor Vehicle Driver's License Business Work Standards" issued by the public security department, motor vehicle driver's licenses are classified into 15 levels: A1, A2, A3, B1, B2, C1, C2, C3, C4, D, E, F, M, N, and P. The permitted vehicle types for each license level are as follows: B1 license permits the operation of heavy passenger vehicles; B2 license permits the operation of heavy and medium-sized trucks, etc.; C1 license permits the operation of small and mini passenger vehicles, etc.; C2 license permits the operation of small and mini automatic transmission passenger vehicles, etc.; C3 license permits the operation of low-speed trucks (formerly four-wheel agricultural transport vehicles); C4 license permits the operation of three-wheeled vehicles (formerly three-wheeled agricultural transport vehicles); M license permits the operation of wheeled self-propelled machinery; N license permits the operation of trolleybuses; P license permits the operation of trams.
