What is the maximum tonnage of trucks that a B1 license can drive?

[StBriella]

B1 license can drive trucks with a total mass of 4.5 tons and an approved load capacity of 1.5 tons. The specific details are as follows: 1. Excluding B2 permitted vehicle types: The permitted vehicle types for B1 do not include those for B2. A B1 license only allows driving light and mini trucks with a total length not exceeding 6 meters, a total mass below 4500kg (including 4500kg), and an approved load capacity below 1500KG. 2. Total permitted vehicle types: The B1 driving license includes the permitted vehicle types of C1, C2, C3, C4, and M. The permitted vehicle types include medium-sized buses (including city buses with a capacity of 10 to 19 people), small and mini passenger vehicles (with a seating capacity of 9 people or fewer), low-speed trucks, three-wheeled cars, wheeled self-propelled machinery, and light, small, and mini special-purpose vehicles.