In most areas, laws state that if you submit to a blood alcohol test and your level is greater than the amount set by law, you are considered intoxicated. Because the acceptable blood alcohol levels are often very low, you may be legally intoxicated even if you don't feel drunk. There are two ways to check the blood alcohol level in a person: by using a breathilizer, or by taking a blood sample. If you submit to a blood alcohol test and the results show a level greater than the legal limit, you will usually be arrested and your driving privileges will likely be suspended for a period of time. Because acceptable blood alcohol levels differ from state to state, check with your local law enforcement agency for more information. They should also be able to provide you with information on responsible alcohol consumption. For additional information, you may also wish to contact a qualified attorney.