Question An over-length load requires: Answers Special permits. A convoy to halt all traffic. A person to walk alongside the vehicle. Explanation Over-length, over-width, and/or overweight loads may require special permits to be transported. In some cases, it may be necessary for the load to be accompanied by a pilot vehicle with warning signs and flashing lights or a police escort. This questions appears in the following tests: Idaho Class A Knowledge Test Mississippi Class B Knowledge Test