This bill establishes new criminal offenses specifically for boat operators in South Dakota, introducing penalties for negligent behavior while under the influence of alcohol, drugs, or other substances. It creates a new section in chapter 22-16 that defines "watercraft homicide" as a Class 3 felony for individuals who operate a boat negligently and cause the death of another person, including unborn children, without intent to kill. Additionally, a new section in chapter 22-18 defines "watercraft battery" as a Class 4 felony for those who cause serious bodily injury under similar circumstances.

Furthermore, the bill adds a new section to chapter 42-8, making it a Class 6 felony for any boat operator involved in an accident resulting in injury or death who fails to stop and comply with the relevant legal provisions. These changes aim to enhance accountability and safety on South Dakota's waterways by imposing stricter penalties for negligent boating behavior.