Final answer:
A vehicle containing Division 1.1, 1.2, or 1.3 materials or other hazardous materials on a trip is not allowed.
Step-by-step explanation:
A vehicle containing Division 1.1, 1.2, or 1.3 materials or other hazardous materials on a trip is considered as not allowed. According to the United States Department of Transportation hazardous materials regulations, these materials are highly explosive or pose an immediate threat to health and safety. Therefore, it is prohibited for such vehicles to transport these hazardous materials.