If you have a Commercial Driver’s License (CDL), there are strict rules and license suspension penalties which you should be aware of. Your CDL will be suspended for one (1) year for First Offense DUI, whether or not you were driving a commercial motor vehicle when you were arrested. Driving a commercial vehicle with a BAC of .04 or more, leaving the scene of an accident, using a vehicle in the commission of certain felonies, and refusing a breathalyzer test will all result in a 1 year license suspension.
With the exception of driving with a BAC of .04 or above, it does not matter whether your were driving a commercial motor vehicle at the time of the offense.
Your CDL will be revoked for life if you are found to have committed 2 or more violations of any of the offenses listed above, arising from 2 or more separate incidents.
Convictions for certain drug offenses will also trigger a lifetime CDL revocation.