What does the term 'Commercial motor vehicle' refer to in traffic code?

The term 'Commercial motor vehicle' in traffic code typically refers to a vehicle that is primarily used for the transportation of goods or passengers for compensation. This includes a wide variety of vehicles, but when focusing on the definition provided in the context of hazardous materials, it highlights the specific regulatory focus on vehicles transporting significant risk items. Vehicles in this category must comply with stringent safety requirements due to the potential dangers associated with transporting hazardous materials, making option B the most relevant and correct choice.

In contrast, vehicles used solely for personal transport, exclusive farming, or as personal passenger vehicles do not fit under the commercial category, as they are primarily utilized for non-commercial purposes and do not generally involve the same level of regulatory scrutiny or safety measures required for commercial vehicles. This delineation is essential for maintaining safety standards on the roadways, especially regarding the handling of materials that could pose a risk to public safety.