Signs You Have Food Poisoning Cramps in your stomach and gut, diarrhea, and vomiting may start as early as 1 hour after eating tainted food and as late as 10 days or longer. It depends on what is causing the infection.
However, a farmer driving a commercial motor vehicle with double or triple trailers or designed to carry or actually carrying 16 or more passengers must have a CDL with proper endorsements.
I think in all states you do need a CDL with an Air Brake Endorsement to drive a truck with air brakes. It would probably mean that you would have to have a Class B also. I don't think there is any trucks made with air brakes that have a light enough gross rating that they wouldn't require a Class B to drive.