§ 3.10 What are the regulations regarding operating a vessel while under the influence of alcohol and/or drugs?
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
(a) Operating or being in actual physical control of a vessel is prohibited while:
(1) Under the influence of alcohol, a drug or drugs, or any combination thereof, to a degree that renders the operator incapable of safe operation; or
(2) The alcohol concentration in the operator's blood or breath is 0.08 grams or more of alcohol per 100 milliliters of blood or 0.08 grams or more of alcohol per 210 liters of breath.
(b) If State law that applies to operating a vessel while under the influence of alcohol establishes more restrictive limits of alcohol concentration in the operator's blood or breath, those limits apply rather than the limits specified in paragraph (a) of this section.
(c) The provisions of this section also apply to an operator who is or has been legally entitled to use alcohol or drugs.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.