Are you familiar with the rules concerning tires when hauling a load of Hazardous Materials?
You MUST check your tires at the beginning of each trip and each time your vehicle is parked. If you find any tire that is underinflated, it MUST be repaired as soon as possible. You are allowed to drive only to the nearest repair facility.
If you find that any tire is overheated, the vehicle cannot be operated again until the overheated tire(s) have been removed and the cause of the overheating is located and repaired. The vehicle cannot be driven at this point. You need to have a service truck respond to your location.