About the Study Guide

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

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All vessel engines must be equipped with an effective, permanently installed muffling system that cannot be bypassed. Excessive noise could prevent a vessel operator from hearing signals and voices.

  • Vessels built before January 1, 1995, must not exceed 90 dB(A) using the stationary test.
  • Vessels built on or after January 1, 1995, must not exceed 88 dB(A) using the stationary test.
  • While operating on lakes and rivers wider than 500 feet, it is unlawful to exceed 75 dB(A) as measured from shore.
  • Contact your local sheriff’s department for a free screening of your vessel’s noise.