Question about mud flaps

Are Mud Flaps Required by any State or Federal Law?

We made our Alaska trip with a $100 "Rock-Solid", heavy duty plastic strips, guard and had zero Toad damage. My friend, traveling the same roads,speed and equivalent rig had a $500 solid board mud guard. The Board scraped up lots of rocks and covered his toad's hood and roof. As stated the biggest problem is on-coming gravel trucks.

The flaps behind each wheel do the best job in protecting the towed , if the are positioned properly , high enough not to drag.they are the best as they are far enough forward of the rear. The rear full flap needs to be high enough that it never touches and doesn't create a air turbulence that can suck small rocks up and throw them into the towed. My belief is that the rear flap is mostly a appearance item. To make the rear of the coach look nice. Several folks I know who travel gravel roads remove them for the trip.

When folks drive the rough roads in Alaska, the mud flaps drag on the gravel roads with all the dips they have and kick gravel back on the toad. Most people take the mud flaps off before the get on the Alcan highway and put them back on, on the way home.

sorry double post

Tinstar, I'm not saying this applies in your case but, most of my rock windshield damage has occurred from vehicles going in the opposite direction of what I was traveling.

I don't have a scientific answer, but I took my mudflaps off after I had a tire blow out and the action of the blow out sent the mudflap like a guided missile into my sewage bay and destroyed everything.

Been running without mudflaps for 6 years now and not one ding on my toad.