The youngest a person can be to receive a motorcycle (M) endorsement is: 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 The youngest a person can be to receive a motorcycle (M) endorsement is: Answers 14 years of age. 18 years of age. 21 years of age. 25 years of age. Explanation In the District of Columbia, you must be at least 18 years old to obtain a motorcycle (M) endorsement on your driver license. This questions appears in the following tests: District Of Columbia Motorcycle Practice Test 7