An A3 driver's license can be upgraded to an A1 license, provided that the driver already holds an A3, B1, or B2 license and meets certain conditions. According to the "Regulations on the Application and Use of Motor Vehicle Driving Licenses" and the new "Streamlining, Delegating, and Improving Services" reform policies, applicants seeking to upgrade to a large passenger vehicle license must meet one of the following conditions: Have held a city bus or medium-sized passenger vehicle license for at least two years; Have held a large truck license for at least three years; Have held a tractor-trailer license for at least one year. In addition to meeting one of the above conditions, applicants must not have accumulated 12 or more penalty points in any of the last three scoring cycles before applying. What are the circumstances under which an A1 upgrade is not allowed? According to Article 16 of the "Regulations on the Application and Use of Motor Vehicle Driving Licenses," the following circumstances disqualify applicants from obtaining a large passenger vehicle, tractor-trailer, city bus, medium-sized passenger vehicle, or large truck license: Being responsible for a fatal traffic accident with equal or greater liability; Driving under the influence of alcohol; Having a driver's license revoked or rescinded within the past ten years. Conditions for upgrading to an A1 license: Height: At least 155 cm; Vision: Naked or corrected vision of at least 5.0 on the logarithmic visual acuity chart for both eyes; Color vision: No red-green color blindness; Hearing: Ability to discern the direction of sound sources with each ear at 50 cm from a tuning fork; Upper limbs: Both thumbs intact, with at least three other fingers intact on each hand, and normal limb and finger movement; Lower limbs: Both lower limbs intact with normal movement, with no more than 5 cm difference in length; Torso and neck: No movement impairments; Age: Between 22 and 60 years old.
