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.
CDL is required if the GVWR of the power unit is over 26,000#. (you said it was) You can license it (registered weight) for whatever you wish, as long as it covers the total gross weight of the truck and anything you have attached to it.