The provisions of Colorado drunk driving penalties apply differently in a DUI (driving under the influence) case and in a DWAI (driving while ability impaired) case. The state of Colorado has made certain driving actions illegal, such as driving with a BAC level of 0.08 or above in a dui case, driving with a BAC level between 0.05 and 0.07 in a DWAI case, driving by under 21 while in possession of alcohol, and driving by under 21 with a BAC level of 0.02 and above.