Your question is not very clear as I live in Florida and I do not know what kind of strange laws you are talking about.
Check with your local Department of Motor vehicles. Most states require a special license to drive commercial vehicles. Some examples of commercial vehicles include buses, and semis.
Every state does require a license to be a commercial debt collector.
A commercial driver's license (CDL) allows the person to drive commercial vehicles, such as trucks and fleet vehicles. This is an extra endorsement on a license that people can get by attending and completing commercial driving courses. Many employers will pay for the courses for new employees, and only require the employee complete the course and understand all the material. Drivers can also find their own driving courses and pay for it themselves to make them more employable.
As far as I can tell from the Florida department of motor vehicles website, Florida DOES require license plates. There may have been a time when they didn't, but since about 1918, Florida has in fact required cars to display one. The state also permits residents to purchase specialized vanity plates or plates that support a particular cause.
Nope.
Situation dependent.
Some vehicles in Wisconsin require a front license plate. The vehicles on which you have to have one are passenger cars and light trucks, unless they are government vehicles.
If they're repossessing vehicles which require one, or operating vehicles which require one in the course of their operations, yes.
New York 1901
You can drive vehicles which require the operator to possess a CDL....
bikes,tricycles,scooters etc.
A Class D license is for commercial use vehicles which don't require a CDL, and is equivalent to what some states refer to as a chauffeur's license. It's used for people operating things such as taxis, limosines, shuttle vans, etc. A Class R license is the "standard" drivers license.