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 California, operating a boat or any watercraft under the influence of alcohol or drugs is illegal, similar to driving a vehicle while intoxicated. The state's Harbors and Navigation Code sections 655 and 655.2 specifically address boating under the influence (BUI). An individual is considered to be under the influence if they have a blood alcohol concentration (BAC) of 0.08% or higher when operating a motorized vessel, or 0.05% if operating a commercial vessel. Penalties for BUI in California can include fines, jail time, and the completion of a boating safety course. Additionally, if a person is found to be operating a watercraft with a BAC of 0.08% or higher, they may have their boating privileges suspended. It's important to note that these laws apply to all public waterways in the state and cover a wide range of watercraft, including boats, jet skis, and other motorized vessels.