A driver will lose their CDL for at least one year for: Do you currently have car 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 A driver will lose their CDL for at least one year for: Answers Leaving the scene of an accident involving a CMV. Improper parking. Improper lane change. Explanation Leaving the scene of an accident involving a CMV will result in loss of your CDL for at least one year. This questions appears in the following tests: Florida Class A Knowledge Test