International convention on Maritime Liens and Mortages 1993.

Mean Low Water

Marine Accident Investigation Branch

Millions of cubic feet per 24 hour.

Merchant Marines Document (USCG)

Merchant Mariner/s Document (USCG)

Merchant Marine Licensing & Document System.

Marine Mammal Protection Act of 1972

Minerals Management Service (U.S.)

Maritime Mobile Service Identity. New compulsory code to identify vessels with the GMDSS/DSC system.

Member of The Nautical Institute

Character of main propulsion machinery assigned to a ship having classification character NS.

Merchant Navy Training Board

Month

Installations character for Operating systems for periodically unattended machinery spaces.

Installations character for MO with Class A Specific Automation Equipment.

Man Overboard

A vessel capable of engaging in drilling operations for the exploration for, or exploitation of, resources beneath the sea-bed, such as liquid or gaseous hydrocarbons, sulfur or salt.

A large plastic constant-level balloon for duration flying (in excess of 24 hours) at altitudes above 40,000 feet, used for the determination of wind fields and the measurement of upper atmospheric parameters.

Memorandum Of Consultation.