National Pollutant Discharge Elimination System

National Pollutant Discharge Elimination System. EPA's NPDES vessels program regulates incidental discharges from the normal operation of vessels. The NPDES vessels program does not regulate discharges from military vessels or recreational vessels. Inste ...

National Pollution Funds Center.

Notice of Proposed Rulemaking.

Net Present Value

Not Required.

National Research Council

National Response Center

Classification character for a ship which had been built under the Society/s survey but has been subjected to survey for classification of the Society/s surveyors.

National Shipping Company of Saudi Arabia.

National Science Foundation

National Strike Force Coordinator

National Shipbuilding Initiative.

Net Standard Volume

Net Standard Weight

Net Tons

National Technical Information Service.

National Transportation Safety Board (U.S.)

Non-Transportation Use

National Union of Mrine, Aviation & Shipping Transport Officers