The blood alcohol level, or BAC, of an intoxicated person in the state of Virginia is 0.08 percent, or 0.02 for those under 21 years of age. Fines and penalties for BUI offenses range from civil fines to the revocation of your boating license. It could also include jail time in some circumstances. If you have been charged with boating under the influence in Southwest Virginia, contact The Lawrence Law Firm, PLC.