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Course Outline

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.

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