Driving while Under the Influence or Driving While Intoxicated is an offense that can loose your your license.  You can have your vehicle impounded temporarily and even have your license revoked for anywhere from 96 hours to  3 years.   The punishment can be higher if there was bodily injury or death occurring from being over blood alcohol limit. The legal blood alcohol limit in all states is .08.   If you are convicted of DUI 3 times within a 10 year period, the next conviction can be considered a felony, even if no-one was injured as a result of your driving while intoxicated.  Remember even if you are arrested for driving under the influence, you have a right to an attorney.  They can help you defend your case or even get the charges dropped.   

A DUI is a serious offense.  In some cases it is considered a felony and can count towards the three strikes laws that many states have elected to apply to felony convictions.  You do not want to end up in prison for the rest of your life for driving while drunk.  It is important that you understand your rights and the possible penalties under the law.  A good lawyer will help with this.  Make sure you retain one as soon as you are able once you have been arrested.