The Connecticut state law states:
"
No person shall operate or cause to be operated any bus, truck, truck-tractor, full trailer or semi-trailer of registered gross vehicle weight exceeding 3 tons on any public highway unless the same is equipped with suitable metal protectors or substantial flexible flaps behind the rearmost wheels; and, in case the rear wheels are not covered at the top and the rear by fender, body or other part of the vehicle, the rear wheels shall be covered at the top and the rear by protective means of such standard type or design and so installed as to reduce - as far as practicable - such wheels from throwing dirt, water or other materials on the windshields of following vehicles, except in cases in which the motor vehicle is so designed and constructed that the above requirements are accomplished by reason of the fender or body construction or other means of enclosure"
There is no federal law requiring them nationwide, as this matter is not addressed by the FMCSA.
Mud flaps are required on commercial vehicles in all states.
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.
In Oregon they are Michigan requires Mudflaps (anti-splash devices) on commercial vehicles.
Yes.
yes if it is on an 18 wheeler trailer or tractor
are bob tailing truck tractors required mud flaps
no
this depends on where the truck is registered and to what the laws are of that region.Added: (in the US) Commercial vehicles engaged in interstate commerce must be equipped with splash guards by DOT and ICC regulation and according to most state laws. This is one of the many things that 'weigh stations' check for on interstate and US highways, which can be seen at the entrance to most states and at intervals throughout the state.ADDED: Mudflaps are not regulated under the Federal Motor Carrier Safety Regulations, it is a State law in those states that require them.
are truck tractors required mud flaps
If the tires are not inside the wheel well opoenings then yes.
People use mud flaps on a variety of vehicles including bicycles cars and trucks. They are used to stop the mud splashing up onto the vehicle or, in the case of the bike, the rider.
WHAT IS THE CALIFORNIA MUD FLAP REGULATIONS