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.
The short simple answer is you do not need a cdl for a vehicle under 26001 lbs, air brakes or not. If you haul Hazardous material, you need a class c with a hazmat endorsement and you must take your road test in a truck with air brakes and pass the general knowledge test for cdl.