What is a requirement for the installation of mud flaps?

The requirement that the flaps must be sufficiently rigid and in the correct vertical position is essential for effective mud flap performance. This rigidity ensures that the flaps can adequately withstand the impact of road debris and moisture, thereby protecting both the vehicle and other road users from being sprayed with dirt, stones, and water. Proper vertical positioning ensures that the flaps are neither too high, which would reduce their effectiveness, nor too low, which could create issues with dragging or structural integrity.

By maintaining these standards, mud flaps can effectively serve their purpose of minimizing splash and debris ejected from the tires, contributing to safer driving conditions and compliance with regulatory requirements. These considerations are vital for both safety and legal adherence in vehicle modifications or installations.