one point I found
One of the most misunderstood parts of the above requirements has to do with trailers with a GVWR in excess of 10,000 pounds when the combined GVWR does not exceed 26,000 pounds. In this case a CDL is NOT required provided you are not placarded for hazardous materials. However individual states may impose a requirement that drivers in their states must have a CDL in this situation so you need to check the requirements in your state. It is also important to note that individual state CDL licensing requirements CAN NOT be applied to drivers from other states.