Do I Have To Have A Cdl License To Drive A Tow Truck In Missouri?

It will depend on the GVWR (gross vehicle weight rating) of the tow truck. If the truck has a GVWR of 26000 lbs or less, you do not need a CDL. If it is 26,001 or more you will.
If the GVWR is 10,000 or more, you will need a DOT health card, even if a CDL is not required