Several changes in Missouri drunk driving penalties have been introduced under the new laws and are effective from August 2010. For example, if you get convicted for driving under the influence of alcohol with a BAC level of 0.15 or more, it will now be considered as a Class A misdemeanor and the court may award you with more severe penalties. For more detailed and more accurate information on what kind of penalties might be applicable in your specific case, you are strongly recommended to consult an experienced Missouri dui attorney. Following is just a general outline on what kind of penalties you can expect if you get convicted for the first, second, or third and subsequent time.