Final answer:
The shipping papers used during rail transportation of hazardous materials are called hazardous materials manifests or shipping manifests.
Step-by-step explanation:
The shipping papers used during rail transportation of a hazardous material (hazmat) are called hazardous materials manifests or shipping manifests. These manifests provide detailed information about the hazardous materials being transported, including the proper shipping name, hazard class, quantity, and emergency response information.
The purpose of the hazardous materials manifest is to ensure safe handling, storage, and transportation of the hazmat, as well as to provide essential information for emergency responders in case of accidents or incidents during transit. The manifests are required by the United States Department of Transportation (DOT) and must be carried on the train transporting the hazardous material.