An improperly placarded vehicle can only be moved: Question An improperly placarded vehicle can only be moved: Answers To make room for other vehicles. In an emergency. If the vehicle will be traveling fewer than 10 miles. Explanation A vehicle that has not been properly placarded may not be driven, except when necessary to protect life or property in an emergency. This questions appears in the following tests: Arizona HazMat Idaho HazMat Kentucky HazMat Kentucky HazMat Nebraska HazMat Oklahoma HazMat Oklahoma HazMat Vermont HazMat Virginia HazMat Virginia HazMat