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.
Motorhomes, of course, have an engine and require an engine starting (chassis) RV battery, but this is always separate from the house battery system. The starting (chassis) battery in a motorhome is the same type as used in a car, though often with a larger CCA (Cold Cranking Amps) rating because the engine is larger.