The plain audible distance for a motor vehicle noise violation is at least how many feet?

• A. 5 feet
• B. 25 feet
• C. 75 feet
• D. 100 feet

Answer: (B)

Plain audible distance is about how far the noise from a vehicle can be clearly heard by a person with normal hearing under typical conditions. The standard used for a motor vehicle noise violation is twenty-five feet. If the noise is plainly audible from that distance or farther, it supports a citation under the rule. This threshold provides a practical, objective way to determine audibility without needing exact decibel measurements, while still taking into account normal background noise and weather. Distances shorter than twenty-five feet aren’t considered the official plain audible threshold, so they don’t meet the standard for violation.