M
m meter
Marecs Maritime European Communications Satellite
Marine Dumping Convention on the Prevention of Marine Pollution by Dumping Wastes and Other Matter
Marine Life Conservation Convention on Fishing and Conservation of
Living Resources of the
High Seas
MARPOL see Ship Pollution
Medarabtel Middle East Telecommunications Project of the International
Telecommunications Union
Mercosur Mercado Comun del Cono Sur; see Southern Cone Common Market
MHz megahertz
MINURSO United Nations Mission for the Referendum in Western Sahara