In California boaters 21 years and older with a blood alcohol content at or over what percent are considered boating under the influence?

In California, boaters aged 21 and older are considered to be boating under the influence (BUI) if they have a blood alcohol content (BAC) of 0.08% or higher. This legal limit aligns with the standard for driving a motor vehicle in the state. Boating under the influence can lead to penalties similar to those for driving under the influence, including fines and potential jail time.