About the Study Guide

You are looking at a preview of what’s in the timed Massachusetts Offroad Ed Course. Feel free to look around, but you’ll need to register to begin progress toward getting your Massachusetts OHV Safety Education Certificate.

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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.