Question If a driver stops and leaves their vehicle while transporting hazardous materials, the shipping papers should be: Answers Carried by the driver. Left in the front seat of the cab. Placed in a box under the passenger seat. Explanation If a driver stops and exits their vehicle, the hazardous materials shipping papers must be left on the driver's seat. This questions appears in the following tests: Arizona HazMat Arkansas HazMat Hawaii HazMat Iowa HazMat Kentucky HazMat Missouri HazMat Oregon HazMat Rhode Island HazMat Rhode Island HazMat South Dakota HazMat Virginia HazMat Virginia Tank Washington HazMat Wisconsin HazMat