What is the rule regarding fender flares?

Fender flares are designed to cover the tires and prevent road debris from being thrown up onto the vehicle or onto surrounding vehicles and pedestrians. The rule stating that fender flares must not exceed 3 inches is meant to ensure that these modifications do not protrude excessively beyond the vehicle's original bodywork, which could cause safety hazards or violate local vehicle regulation standards.

Having fender flares that exceed this limit could lead to increased wind resistance, affect the vehicle's stability, and potentially result in fines or the vehicle failing inspection. This regulation helps maintain the vehicle's intended design, while also ensuring safety and compliance with state laws regarding automotive appearances and modifications.