No one plans to drive over the legal limit, but sometimes it happens. Laws can vary from state to state, it is important to educate yourself on your state's drunk driving laws so you can make informed choices in the event of a DUI charge. In Kentucky, driving with a Blood Alcohol Content (BAC) of more than 0.08 is enough to elicit a DUI (driving under the influence). For minors, the BAC limit is 0.02, and for commercial drivers it is 0.04. If you find yourself facing charges related to DUI, this is what you can expect for a first offense.