Final answer:
When carrying hazmat, it is necessary to stop and check the tires regularly to ensure safety.
Step-by-step explanation:
When carrying hazardous materials (hazmat), it is important to ensure the safety of the vehicle by regularly checking the tires. According to the Federal Motor Carrier Safety Administration (FMCSA) regulations, hazmat carriers must check their tires at least once every three hours or every 150 miles, whichever happens first.