Which of the following is included in the definition of a commercial motor vehicle?

A commercial motor vehicle is typically defined as any motor vehicle used primarily for the transportation of goods or passengers for a fee, and it usually has specific characteristics related to size, weight, and function. In this context, a road tractor is included in this definition because it is designed to pull trailers or other vehicles, commonly used in the freight industry.

Passenger vans and motorcycles, while they can be used for transporting individuals, do not meet the commercial motor vehicle criteria in the same way as road tractors do, particularly when considering their usual applications and weight classifications. Bicycles are not motor vehicles at all and therefore fall outside the definition entirely.

The characteristics of road tractors, like having a gross vehicle weight rating that typically exceeds certain thresholds established by federal and state regulations, validate their classification as commercial motor vehicles. This classification is significant for enforcement and regulatory purposes, ensuring that vehicles operating commercially adhere to safety and operational standards.