Mud flaps have to be on medium and heavy duty trucks in Pennsylvania. This is the law and you can be fined if they aren't.
Mud flaps are required on trucks in Colorado. No vehicle or motor vehicle can be driven or moved on any street or highway unless it has splash guards or mud flaps on it.
They are Required on all commercial Vehicles (ps if you have a truck and have the commercial plate, then its a commercial Vehicle)
No.
Yes.
yes if it is on an 18 wheeler trailer or tractor
All trucks and trailers with four or more tires on the rear axel must have safety guards or mud flaps behind the rear wheel.
No
Yes, there are exceptions to gravel and log trucks, per the MS Highway Patrol. This of course makes no sense at all. They have also included Asphalt trucks. I am looking for the wording in MS that verifies same.
no they do not most of them do but not all
are bob tailing truck tractors required mud flaps
no
When they first made trucks in the early 1900s.
Laws will vary from place to place. Many communities have ordinances requiring mud flaps.
Mud flaps are required on commercial vehicles in all states.
For those seeking mud flaps for a larger vehicle such as a truck, there are sites available with these products. These include eBay, Stylin Trucks, Duraflap, and Real Truck.