There are some exceptions.
A shipping paper is not required for ORM-D materials unless transported
by
aircraft.
Hazardous materials identified in Column 1 of the HMT with:
- “A” require shipping papers only when shipped by air unless they meet the definition of a hazardous substance, hazardous waste, or marine pollutant;
- “W” require shipping papers only when shipped by water unless they meet the definition of a hazardous substance, hazardous waste, or marine pollutant.