All states have laws against boating under the influence (BUI), which make it a crime to operate a boat or watercraft on a public waterway while under the influence of alcohol or drugs.
In Indiana, operating a boat while under the influence of alcohol or drugs is illegal, similar to driving a vehicle while impaired. According to Indiana Code 14-15-8-1, an individual is prohibited from operating a motorboat or personal watercraft while intoxicated. Intoxication is defined as having a blood alcohol concentration (BAC) of 0.08% or more, or being under the influence of alcohol or drugs such that there is an impaired condition of thought and action and the loss of normal control of a person's faculties. Violating these laws can result in penalties including fines, imprisonment, and the suspension of boating privileges. The enforcement of BUI laws is aimed at ensuring safety on the waterways and reducing accidents and fatalities related to alcohol and drug use while boating.