A commercial driver with a blood alcohol concentration of 0.04 or above can be arrested for Driving Under The Influence (DUI). This limit is much lower than the alcohol limit, which exists for an ordinary driver of a personal vehicle at 0.08. Georgia DDS will suspend a driver’s Commercial Driver’s License (CDL) for a minimum of one year if they are convicted with DUI. Although, this suspension could be as long as three years if it is found that the driver was transporting hazardous substances at the time of their arrest. A conviction of a 2nd DUI will result in a lifetime suspension of your CDL.