Glossary — N

15 terms starting with N.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Nairobi Wreck Removal Convention
International convention (entered into force 2015) that gives coastal states the right and obligation to remove hazardous wrecks in their EEZ at the registered owner's expense.
NAVAREA
One of sixteen geographic sea areas defined by IMO/IHO for the co-ordination of worldwide navigational warning broadcasts.
NAVAREA (NAVAREA)
One of 21 IMO/IHO-designated sea areas within which a co-ordinating authority issues numbered navigational warnings to mariners.
Navigational Telex (NAVTEX)
An automated medium frequency broadcast system transmitting navigational warnings, weather forecasts, and search and rescue notices.
NAVTEX (Navigational Telex)
Automated narrow-band direct-printing system broadcasting Maritime Safety Information on 518 kHz (international) and 490 kHz (national) within 200–400 NM of coastal transmitters.
NAVTEX Frequencies
International NAVTEX uses 518 kHz (English); national NAVTEX 490 kHz; tropical 4209.5 kHz.
Near-Miss Reporting
Documented submission of an incident that did not cause harm but had the potential to.
Neo-Panamax / New-Panamax
Maximum vessel size for the post-2016 Panama Canal expansion: 366 m LOA × 49 m beam × 15.2 m draft tropical fresh.
Newcastlemax
Bulker class sized for the Port of Newcastle, Australia (50 m beam max): ~205,000 DWT, 300 m LOA, 18.5 m draft.
Northern Sea Route (NSR)
Russian Arctic shipping route along Siberia from Kara Gate to Bering Strait; transits regulated by Glavsevmorput (NSR Administration).
Not Under Command (NUC)
Vessel which through exceptional circumstance cannot manoeuvre as required by the rules; shows two black balls / two red lights vertically.
Notice of Readiness (NOR)
A formal written notice given by the master to the charterer or shipper that the vessel has arrived and is ready to load or discharge.
NOx Tier III
Strictest IMO NOx limit (~3.4 g/kWh at 130 rpm); applies to engines >130 kW installed on ships built ≥2016 trading in NOx ECAs.
NUC (Not Under Command) (NUC)
COLREG Rule 3(f) status where a vessel is unable to manoeuvre due to exceptional circumstances (steering failure, engine failure) and cannot keep out of the way of another vessel.
NYPE Charter
New York Produce Exchange standard time charter form, widely used for dry-cargo time charters.

Glossary — N

15 terms starting with N.

International convention (entered into force 2015) that gives coastal states the right and obligation to remove hazardous wrecks in their EEZ at the registered owner's expense.

NAVAREA

One of sixteen geographic sea areas defined by IMO/IHO for the co-ordination of worldwide navigational warning broadcasts.

NAVAREA (NAVAREA)

One of 21 IMO/IHO-designated sea areas within which a co-ordinating authority issues numbered navigational warnings to mariners.

Navigational Telex (NAVTEX)

An automated medium frequency broadcast system transmitting navigational warnings, weather forecasts, and search and rescue notices.

NAVTEX (Navigational Telex)

Automated narrow-band direct-printing system broadcasting Maritime Safety Information on 518 kHz (international) and 490 kHz (national) within 200–400 NM of coastal transmitters.

NAVTEX Frequencies

International NAVTEX uses 518 kHz (English); national NAVTEX 490 kHz; tropical 4209.5 kHz.

Near-Miss Reporting

Documented submission of an incident that did not cause harm but had the potential to.

Neo-Panamax / New-Panamax

Maximum vessel size for the post-2016 Panama Canal expansion: 366 m LOA × 49 m beam × 15.2 m draft tropical fresh.

Newcastlemax

Bulker class sized for the Port of Newcastle, Australia (50 m beam max): ~205,000 DWT, 300 m LOA, 18.5 m draft.

Northern Sea Route (NSR)

Russian Arctic shipping route along Siberia from Kara Gate to Bering Strait; transits regulated by Glavsevmorput (NSR Administration).

Not Under Command (NUC)

Vessel which through exceptional circumstance cannot manoeuvre as required by the rules; shows two black balls / two red lights vertically.

Notice of Readiness (NOR)

A formal written notice given by the master to the charterer or shipper that the vessel has arrived and is ready to load or discharge.

NOx Tier III

Strictest IMO NOx limit (~3.4 g/kWh at 130 rpm); applies to engines >130 kW installed on ships built ≥2016 trading in NOx ECAs.

NUC (Not Under Command) (NUC)

COLREG Rule 3(f) status where a vessel is unable to manoeuvre due to exceptional circumstances (steering failure, engine failure) and cannot keep out of the way of another vessel.

NYPE Charter

New York Produce Exchange standard time charter form, widely used for dry-cargo time charters.