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Official Michigan Boating Handbook Michigan Department of Natural Resources and Environment

It's the Law: On the Water

Alcohol and Drugs

Michigan law prohibits anyone from boating while under the influence of alcohol or drugs. It is also unlawful for the owner of a vessel to allow anyone else to operate their vessel if that person is under the influence of alcohol or drugs.

Consequences of boating under the influence - handcuffed boater

  • The following conditions determine if you are boating under the influence.
    • If your blood alcohol content is 0.10% or greater by weight of alcohol as determined by a breath, blood, or urine test, you are considered to be under the influence of alcohol.
    • If your blood alcohol content is greater than 0.07% but less than 0.10% by weight of alcohol as determined by a breath, blood, or urine test, a law enforcement officer can consider that fact along with other evidence in determining if you are under the influence.
  • Michigan law establishes the following penalties.
    • People arrested for boating under the influence are guilty of a misdemeanor. Upon a third conviction within 10 years, a person will be guilty of a felony.
    • If a person boating under the influence causes great bodily injury or death of another person, he or she will be guilty of a felony.
  • By operating a vessel on Michigan waters, you have consented to be tested for alcohol or drugs if arrested by a law enforcement official.

"Don't drink and boat!" reminder

Just remember this simple rule:
Don't drink and boat!

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Michigan Department
of Natural Resources
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Online boating safety handbook last modified: July 13, 2011
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