What information must be clearly visible on commercial motor vehicles?

The name and address of the owner must be clearly visible on commercial motor vehicles to ensure accountability and facilitate communication in case of accidents or compliance checks. This requirement helps law enforcement and regulatory agencies verify the legitimacy of the vehicle's operation and can assist in the identification of the owner should any issues arise on the road. Having this information displayed prominently allows for swift and straightforward identification, which is crucial in maintaining safety and accountability within the commercial transportation sector. The other options, while relevant to certain contexts, do not have the same degree of importance for public visibility and operational transparency in commercial vehicle regulations.