The Captain.
Captian
captain
Captain
A driver carrying non-hazardous materials does not have to carry hazardous materials shipping papers, but most do need to carry bills of lading and the like in support of the business of moving things from one place to another.
When hazardous materials are being transported by air the shipping papers are located in the cockpit or flight deck.
Shipping papers for hazardous materials are typically available through freight management companies, which specialize in handling and documenting the safe transportation of such goods.
The shipping papers for hazardous materials on an airplane are called "Dangerous Goods Declarations" or "DG Declarations" in the context of international freight logistics network.
Manifest
with the conductor or engineer
a hazardous material
Waybills
conductor or engineers