Source? I'll call BS on your claims I just looked a few up.Not helpful. As I stated before, anything that is more than 2 feet past the rear bumper is illegal. Also, if you block the view of the license plate, that is also illegal. Red flags are not a pass. Ask any DOT police officer. Anything outside of legal limits requires a permit. It doesn't matter if it is a POV or commercial vehicle. The law applies to ALL vehicles on public roads.