Which class includes trucks, tractors, and buses that weigh over 10,000 lbs?

The classification of vehicles is determined by their weight, size, and function. In this case, trucks, tractors, and buses that weigh over 10,000 lbs fall under Class B vehicles. This category is specifically designated for larger vehicles that require a commercial driver's license (CDL) to operate.

Class B vehicles are defined as those with a gross vehicle weight rating (GVWR) of more than 10,000 lbs and include vehicles such as school buses and heavy trucks, which are used for transporting goods or passengers. Understanding this classification is essential for ensuring that the appropriate licensing and safety inspections are performed to comply with state regulations.

Classes C, D, and F vehicles do not pertain to vehicles over 10,000 lbs. Class C typically includes lighter commercial vehicles that require a CDL but have a GVWR of 10,000 lbs or less, while Class D often refers to standard passenger vehicles. Class F may not even be recognized in many licensing systems. Thus, the identification of Class B as the correct answer reflects the specific requirement concerning the weight of vehicles in question.