When operating a CMV, it is illegal to have a blood alcohol content (BAC) of 0.04 percent or higher. Do you currently have motorcycle insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question When operating a CMV, it is illegal to have a blood alcohol content (BAC) of 0.04 percent or higher. Answers True False Explanation It is illegal to operate a CMV if your blood alcohol concentration (BAC) is 0.04 percent or higher.