Missouri law establishes the following penalties.
- Those convicted of boating while intoxicated are guilty of a Class B misdemeanor upon a first conviction. In addition, those convicted will be required to complete and pass an approved boating safety course.
- Upon a second conviction, a person is guilty of a Class A misdemeanor.
- Upon a third or subsequent conviction, a person will be guilty of a Class D felony.
- A person boating while intoxicated who causes the death or serious injury of another person will, upon conviction, be guilty of a felony.