DUI Lawyer ClarksvilleThe legal limit for a person with a CDL operating their personal vehicle is .08, the same as a person with a regular driver’s license.  Recently I addressed this issue in the General Sessions Court for Montgomery County.  A service member of the US Army was arrested for DUI based on his possession of a CDL and having a BAC of .041 while operating his personal vehicle.  This case was dismissed on the merits.