What document is used to describe hazardous materials in transit?

The Bill of Lading is the correct document used to describe hazardous materials in transit. This legal document serves multiple purposes, including acting as a contract for the transportation of goods and providing crucial information about the cargo. It outlines a description of the hazardous materials, including their quantity, weight, and special handling instructions, ensuring that everyone involved in the transportation process is informed and can adhere to safety requirements.

The other documents mentioned, although important in their contexts, do not serve the primary purpose of detailing the description of hazardous materials in transit. For example, the Safety Data Sheet provides detailed information about the properties of a chemical, including its hazards and safe handling, but it is not specifically a transportation document. The Transport Manifest is a record used by some carriers, often a comprehensive document that lists all items being transported, but it may not always meet the specific description requirements for hazardous materials like a Bill of Lading does. The Hazard Communication Document is typically focused on workplace safety rather than the transportation of materials. The Bill of Lading combines all necessary legal and safety details required for hazardous materials during transit, making it the essential documentation in such cases.