Which of the following cannot be transported on a bus? Do you currently have motorcycle 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 Which of the following cannot be transported on a bus? Answers Small arms ammunition 25 pounds of solid Class 6 poisons Tear gas Explanation Among other specific hazardous materials, tear gas must never be carried on a bus.