Manifest  Entire listing of all cargo on board a vessel as required by the relevant local authorities, e.g. customs. Same as Cargo Manifest.
Marks and Numbers   The identifying details on or of a package, or the actual markings that appear on the packages.
Materials Management   The procurement, movement, and management of materials and products from acquisition through production.
Merchant Haulage   Inland transportation performed by an inland carrier contracted by and for the account of the shipper or consignee.
Mixed Shipment   Shipment consisting of articles described in and rated under two or more rate items within a tariff.
MLB  An abbreviation for Mini Land Bridge Containers moving from a foreign country by vessel, and then sent to an inland point in the U.S. or elsewhere by land transportation (rail or truck). See also Land Bridge.
Mother Vessel   Main ocean vessel in a liner service designated to move containers from set origin points to set destination ports/points on a regular basis.
MSI Plessey   This barcode is a variable length barcode that can encode up to 15 numeric digits. Checksum generation is dependent on the value of the checksum parameter. The following table indicates the value of the checksum property and the type of checksum created. Setting, Description, 0, one modulus 10 checksum, 1, two modulus 10 checksums, 2, one modulus 11 checksum/one modulus 10 checksum.
MT  Metric Ton. (1 MT = 2 204.62lbs or 35.314 cft)