ABBREVIATION MEANING MANIFEST Inventory of cargo on board MB Merchant Broker MDO (DO) Marine Diesel Oil MIDSHIP Approximately in the location equally distant from the bow and stern MIN/MAX Minimum/Maximum (cargo quantity) MOA Memorandum of Agreement MOLCHOPT More or Less Charterers Option MOLOO More or Less Owners Option MOORING An arrangement for securing a ship to a mooring buoy or pier MT Mertic Tonne (i.e. 1,000 kilos) M/V Motor Vessel / Merchant Vessel NAABSA Not Always Afloat But Safely Aground NM Nautical Mile. One minute of latitude; approximately 6,076 feet - about 1/8 longer than the statute mile of 5,280 feet NAVIGATION The art and science of conducting a ship safely from one point to another NCB National Cargo Bureau NESTING Implies that cargo is presented stacked in the contour of similarly shaped cargo, it may be likened to a stack of plates. This is particularly relevant in the presentation of tankage strakes for transport NON-REVERSIBLE (Detention). If loading completed sooner than expected, then saved days will not be added to discharge time allowed. NOR Notice of Readiness NRT Net Registered Tonnage NYPE New York Produce Exchange OO Owners Option OBO Ore/Bulk/Oil Vessel OSH Open Shelter Deck OVERBOARD Over the side or out of the ship OWS Owners