What license is obtained when downgrading from A1?

[MacKendra]

A1 license downgraded becomes a B1 driver's license. The vehicle types permitted by an A1 license include large buses that can carry more than 20 passengers, as well as vehicles with a body length exceeding 6 meters. Other vehicle types permitted by an A1 license are: A3 (city buses), B1 (medium-sized passenger vehicles), B2 (large trucks), C1 (small cars), C2 (small automatic transmission cars), C3 (low-speed cargo vehicles), C4 (three-wheeled vehicles), and M (wheeled self-propelled machinery). There are 16 types of driver's licenses, and the specific vehicle types they permit are as follows: 1. A1 (large passenger vehicles): Permitted vehicles: large passenger-carrying vehicles. Other permitted vehicle types: A3, B1, B2, C1, C2, C3, C4, M. 2. A2 (tractor vehicles): Heavy and medium-sized full trailers and semi-trailer vehicle trains. Other permitted vehicle types: B1, B2, C1, C2, C3, C4, M. 3. A3 (city buses): Permitted vehicles: city buses with a capacity of 10 or more passengers. Other permitted vehicle types: C1, C2, C3, C4. 4. B1 (medium-sized passenger vehicles): Permitted vehicles: medium-sized passenger-carrying vehicles (including city buses with a capacity of 10 to 19 passengers).