SC has a hybrid system. Class A and B are Commercial Class A and B CDL's whereas Non-Commercial are Class E and F which is required for any vehicle over 26,000#. The Class E is for unit only wheras the Class F is for unit plus tow. The Handbook used is the same i.e. the tests are based upon truck including air brakes. The drive test is the same e.g. to get a Class F an RV'er must bring to test a trailer behind the rig and do a docking manuveer.

You missed the latest endorsement that is required for school buses. The "S" for student came through about 2 years ago. As I understand it was a federal requirement. I got Grandfathered in since I had 45 years of bus driving at that time and had worked for the same employer for over 1 year. One advantage for the State of Michigan is that we pay extra for each endorsement. I have a $95. driver's license.