Eagan, MN Noise Ordinances: Vehicle Noise (2026)

Eagan does not set its own roadway vehicle decibel limits; loud cars, trucks, and motorcycles are regulated primarily under Minnesota state law, which local police enforce. Minnesota Statutes section 169.69 (Muffler) requires that 'every motor vehicle shall at all times be equipped with a muffler in good working order which blends the exhaust noise into the overall vehicle noise and is in constant operation to prevent excessive or unusual noise.' It further provides that 'no person shall use a muffler cutout, bypass, or similar device upon a motor vehicle on a street or highway,' and that 'the exhaust system shall not emit or produce a sharp popping or crackling sound.' Separately, the Minnesota Pollution Control Agency's motor vehicle noise rules, Minn. R. 7030.1000 through 7030.1060, set numeric noise limits that vary by vehicle weight class (for example, vehicles over 10,000 pounds), motorcycles, and other vehicles, and by posted speed limit. These rules also prohibit modifying a vehicle or installing parts that increase noise above the limits. The MPCA notes that local governments and law enforcement are typically the best contact for vehicle noise because the state rule can be harder to enforce, and Eagan's general public noise provisions in Chapter 10 may apply to a stationary vehicle (such as a parked car with a loud sound system) under the disturbing-the-peace standard.