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.
Driving a Class A, B, or C commercial vehicle in the State of Iowa requires that you possess a CDL. Endorsements are required for double/triple trailers, tanker vehicles, passenger vehicles, and vehicles marked for the transportation of hazardous materials.