Noxious Fumes and Noise Limits
It is illegal to emit noxious fumes or excessive noise from your OHV. An OHV must be equipped with an adequate muffler.
- For OHVs manufactured on or after January 1, 1998: The engine noise level may not exceed 96 dbA when measured from a distance of 20 inches.
- For OHVs manufactured before January 1, 1998: The engine noise level may not exceed 101 dbA when measured from a distance of 20 inches.
It is illegal to use a muffler cutout, bypass, straight pipe, or similar device on an OHV.