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Jeep Mud Flap & Fender Requirement Laws You Should Know

Posted by Scott Gordon at

Each state has their own opinion on what and when 4x4 and Jeep off road vehicles are required to have mud flaps (splash guards, rock guards) & Fenders. As both a daily driver and off-road enthusiast I have had my share of rocks and mud thrown at me, it was at that moment I started to look into options for my Wrangler JK. I couldn't find a simple quick disconnect mud flap so I decided to create our own. I measured out the frame, found the mounting preferred mounting holes and started fabricating. After a week I had created our patent pending design that fits your Jeep Wrangler, Jeep Rubicon, or Jeep Wrangler Unlimited. After a taking a trip down to Easter Jeep Safari in Moab, Utah I noticed a large need for mud flaps. Friends and random Jeep members of the Jeep community started asking us who made our splash guards. Some members spoke about receiving fix-it tickets from law enforcement. After taking some time we investigated these regulations and found that there are actual state laws requiring mud flaps and fenders. 

Here is a very basic list of each states requirement as of 2014. If you come across any states with incorrect information, please comment updates below.

Alabama Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

Alaska Mud Flap and Fender Requirements - Vehicle equipment laws require either  fenders, splash guards or mud flaps. The fenders must extend to the outside edge of the tire tread and the mud flaps must be sufficient to prevent mud being thrown behind the vehicle.

Arizona Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps. Fenders must cover the entire width of the tire and extend down to 8 inches above the roadway. These requirements only apply to commercial vehicles and lifted trucks.

Arkansas Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

California Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps.  The fenders must extend to the outside edge of the tire tread and the mud flaps must be sufficient to prevent mud being thrown behind the vehicle.

Colorado Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

Connecticut Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps.  Fenders are required by Connecticut vehicle equipment laws. All four tires must have fenders.

Delaware Mud Flap and Fender Requirements - Commercial vehicles or any combination of these require fenders or mud flaps.

District Of Columbia Mud Flap and Fender Requirements - Fenders are not allowed to be wider than or extend past original design.

Florida  Mud Flap and Fender Requirements - Commercial vehicles or any combination of these require fenders or mud flaps.

Georgia Mud Flap and Fender Requirements - Commercial vehicles or any combination of these require fenders or mud flaps.

Hawaii Mud Flap and Fender Requirements -  Vehicle equipment laws require either fenders, splash guards or mud flaps.  The rules for lifted jeeps are that if you drop a ruler down the side of the fender, no more than 3/4″ of tire tread can extend past the fender.  Likewise, as you stand about 6′ (ish) from the back of the vehicle and look at the tires, no more than half of the tire tread can be visible.  

Idaho Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps.  The fenders must extend to the outside edge of the tire tread and the mud flaps must be sufficient to prevent mud being thrown behind the vehicle.

Illinois Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps. Mud flaps are required by Illinois vehicle equipment laws on pick up trucks.

Indiana Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

Iowa Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

Kansas Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

Kentucky  Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

Louisiana Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps. The fenders must cover the entire width of the tires.

Maine Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps.  The fenders must extend to the outside edge of the tire tread.

Maryland Mud Flap and Fender Requirements - Commercial vehicles or any combination of these require fenders or mud flaps.

Massachusetts Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps. Mud flaps are required by Massachusetts vehicle equipment laws on all vehicles.

Michigan Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

Minnesota Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps. Minnesota requires mud flaps and fenders to reduce the spray of water or mud as much as practical.

Mississippi Mud Flap and Fender Requirements - Commercial vehicles or any combination of these require fenders or mud flaps.

Missouri Mud Flap and Fender Requirements - Commercial vehicles or any combination of these require fenders or mud flaps.

Montana Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps.  The fenders must extend to the outside edge of the tire tread and the mud flaps must be sufficient to prevent mud being thrown behind the vehicle.

Nebraska Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

Nevada Mud Flap and Fender Requirements - Commercial vehicles or any combination of these require fenders or mud flaps.

New Hampshire Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps.  The fenders must extend to the outside edge of the tire tread and the mud flaps must be sufficient to prevent mud being thrown behind the vehicle.

New Jersey Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps. The fenders must extend to the outside edge of the tire tread and the mud flaps must be sufficient to prevent mud being thrown behind the vehicle.

New Mexico Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

New York Mud Flap and Fender Requirements - Commercial vehicles or any combination of these require fenders or mud flaps.

North Carolina Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

North Dakoda Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps. The fenders must cover the entire tire and at least 15 degrees in front and 75 degrees to the rear of the vehicle centerMud Flap and Fender Requirements -line of the wheel.

Ohio Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

Oklahoma Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps. Mud flaps are required for vehicles that do not have fenders by the Oklahoma vehicle equipment laws.

Oregon Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps. The fenders must extend to edge of the tire and the mud flaps must be sufficient to prevent mud being thrown behind the vehicle coming to at least 27 inches above the road.

Pennsylvania Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps.  Medium and heavy duty trucks require  fenders must extend to edge of the tire and the mud flaps must be sufficient to prevent mud being thrown behind the vehicle. Flares have a maximum width limit of 3 inches.

Rhode Island Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps.  The fenders must extend to the outside edge of the tire tread and the mud flaps must be sufficient to prevent mud being thrown behind the vehicle.

South Carolina Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

South Dakoda Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

Tennessee Mud Flap and Fender Requirements - Commercial vehicles or any combination of these require fenders or mud flaps.

Texas Mud Flap and Fender Requirements - Commercial vehicles or any combination of these require fenders or mud flaps.

Utah Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps.  Provided that the axle width has been modified from stock, Utah vehicle equipment laws require that the fenders and mud flaps cover the entire width of the tire.

Vermont Mud Flap and Fender Requirements - Commercial vehicles or any combination of these require fenders or mud flaps.

Virginia Mud Flap and Fender Requirements - Commercial vehicles or any combination of these require fenders or mud flaps.

Washington Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps. The fenders and mud flaps must cover the full width of the tire, and the tires may only exceed the width of the original fenders by 2 inches.

West Virginia Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.

Wisconsin Mud Flap and Fender Requirements - Vehicle equipment laws require either fenders, splash guards or mud flaps. The fenders and mud flaps must cover the full width of the tire, and the tires may only exceed the width of the original fenders by 2 inches.

Wyoming Mud Flap and Fender Requirements - Not enough information is given regarding mud flap or fender requirements.


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