How long does it take to upgrade from C1 to B2 license?

[MacMaya]

Upgrading from C1 to B2 license requires more than one year. According to regulations, you must hold a C1 driver's license for at least one year with no full-point penalty record in the most recent scoring cycle. The following are the requirements for upgrading from C1 to B2: 1. Age between 21 and 50 years old. 2. Hold a C1 driver's license for over one year. 3. Naked-eye or corrected visual acuity must reach 5.0 on the logarithmic visual acuity chart. 4. The upgrade to B2 can only be processed at the registered residence location. Below are the permitted vehicle types for C1 and B2 licenses: 1. C1 license: Permits driving small and mini passenger vehicles, light and mini cargo vehicles, and light/small/mini special-purpose vehicles. 2. B2 license: Permits driving heavy and medium cargo vehicles or large/heavy/medium special-purpose vehicles; also allows driving C1, C2, C3, C4, and M vehicle types.