| Manifest | A list of all cargoes for a specific shipment or grouping. |
| Marine Insurance | Loss and damage insurance at sea excluding recoverable losses from the carrier. |
| Material Safety Data Sheet (MSDS) | Information about hazardous materials in a shipment. |
| Measurement ton | Forty cubic feet; used in water transportation rate-making. |
| Merchandise Processing Fee (MPF) | Fee for customs clearance and border protection related to imported goods. |
| Modal split | The relative use of different transportation modes. |
| Multimodal Shipping | The use of multiple transportation modes for the movement of goods. |
