Impairment when consuming alcohol begins: 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 Impairment when consuming alcohol begins: Answers Well below the legal limit. At the legal limit. Above the legal limit. Considerably above the legal limit. Explanation When drinking alcohol, impairment of riding skills begins well below the legal limit. It is never safe to operate a motorcycle after drinking alcohol.