About the Study Guide

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

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Any off-road vehicle operated in Oregon is required to have a muffler and must comply with the noise limits. It is illegal to operate any off-road vehicle that produces engine noise in excess of:

  • 99 decibels (all of Oregon)
  • 97 decibels (Sand Lake)
  • 93 decibels (Oregon Dunes National Recreation Area)

Off-road vehicles may not operate on Oregon public lands if the vehicle’s muffler is stamped with “Closed Course Competition” or “Not for Road Use.”