Do you currently have car insurance? Insurance is mandatory to drive in California Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question Regrooved tires: Answers Should not be used on any vehicle. Should not be used on the front of a bus. Should not be used on trucks hauling gravel. Explanation Regrooved, recapped, or retreaded tires are prohibited on the front wheels of a bus. Take a FREE Practice Test Now This questions appears in the following tests: Maine Knowledge Test Class A , Rhode Island Knowledge Test Class B , Washington Knowledge Test Class B , Oklahoma Tank ,