Total: All recorded violations.

Severe (Out of Service): Critical violations halting operations until fixed. (The truck or the driver cannot drive and it would be illegal for them to do so.)

Driver Unfit to Drive: Violations regarding driver qualifications (medical, CDL, documents). For example, they are supposed to wear eyeglasses but are found driving without them.

Unsafe Driving: Violations like speeding, improper lane changes, ignoring traffic signs.

Tired Driver: Violations of driving/rest period rules preventing fatigue.

Vehicle Not Well Maintained: Vehicle-related violations (brakes, lights, cargo security, mechanical).