This road sign means: Do you currently have commercial insurance? Commercial Insurance is mandatory for CDL drivers in Vermont Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question This road sign means: Answers Slow down or stop. Stop, if necessary. You must come to a complete stop. Drive with caution and be ready to stop. Explanation An eight-sided sign always means "stop." You must come to a complete stop and wait for any vehicles or pedestrians to clear the way before proceeding.