If you have a box truck that is cdl rated and remove the make it flatbed still truck?

It depends on the specific box truck and the regulations in your jurisdiction. In some cases, removing the box from a cdl rated box truck may require you to obtain a different type of commercial driver's license. It's important to check with your local Department of Motor Vehicles (DMV) or the equivalent authority in your area to determine the specific requirements for operating a flatbed truck.