How many subjects need to be retaken for upgrading from C1 to B2 license?

[DelMichael]

To upgrade from a C1 to a B2 license, you need to retake 4 subjects, starting from Subject 1 again. The contents of Subject 1, Subject 3, and Subject 4 remain unchanged, which are the theoretical test, road test, and safe civilized driving test, respectively. As for Subject 2, it includes the following: pole test, slope fixed-point parking and starting, parallel parking, passing a single-plank bridge, curve driving, right-angle turning, passing a width-limited gate, passing continuous obstacles, driving on bumpy roads, narrow road U-turns, as well as simulations for highways, continuous sharp turns on mountain roads, tunnels, rain (fog) conditions, slippery roads, and emergency handling. Conditions required for upgrading from a C1 to a B2 license: Age between 20 and 60 years old; height not less than 155cm; holding a C1 license for at least 1 year; no record of accumulating 12 penalty points in the current scoring cycle or the most recent one before application; visual acuity must meet or exceed 5.0 on the logarithmic visual acuity chart; no record of drunk driving or causing a fatal traffic accident with primary responsibility while holding a C1 license.