When a shipper packages hazardous materials, they certify: Question When a shipper packages hazardous materials, they certify: Answers That the package does not contain hazardous materials. That the package has been prepared in compliance with the rules. That the package was packed at a different location. Explanation A shipper of hazardous materials must certify on the shipping paper that the shipment has been prepared in accordance with the rules. This questions appears in the following tests: Alaska HazMat Iowa HazMat Iowa HazMat New Hampshire HazMat New Mexico HazMat Vermont HazMat Virginia HazMat