What is not true about parking a commercial vehicle that transports hazardous materials?

The assertion that the driver cannot have someone monitor the vehicle is not true because, in certain circumstances, having someone monitor a parked commercial vehicle that transports hazardous materials is permissible. Regulations surrounding parking often allow for monitoring to enhance safety and security.

When it comes to parking regulations for vehicles transporting hazardous materials, there are specific guidelines that generally allow parking on the shipper's or carrier's property, as these are typically private areas designed to accommodate such operations. This provides a controlled environment where safety practices can be enforced effectively.

On the other hand, letting someone watch the vehicle while it is parked on public streets is typically discouraged or restricted due to safety concerns and regulatory requirements regarding hazardous materials. However, in practice, some monitoring arrangements may be made, keeping in mind local laws and regulations.

Thus, the first statement is incorrect and reflects misunderstandings about monitoring practices that might be in line with safety measures for parked hazardous materials transportation.