Glossary

Maritime glossary, terms beginning with N (page 4)

All maritime glossary terms that begin with the letter N, drawn from every subject section. 1500 entries.

Showing 250 of 1500 terms (page 4 of 6).

Nippon Sharyo X137. Harbour Tugs, Towage Operators and Tug Builders: Japanese builder with historical tug production.
Nippon Steel X92. Marine Steel Suppliers and Shipbuilding Plate: Japanese integrated steelmaker with plate output from Kashima, Kimitsu, and Nagoya, formerly Nippon Steel and Sumitomo Metal Corporation.
Nippon Suisan Kaisha (Nissui) X87. Fishing Vessels and Fisheries Management: Major Japanese fisheries company operating in trawling, tuna, and aquaculture.
Nippon Yusen Kaisha X109. Maritime Autonomous Surface Ships and MASS Code: The Japanese shipping company that operated the Mikage MASS trial in 2022.
NIPPONBUILDER 2000 X29. Ship Sale and Purchase, Management Contracts and Valuation: Japanese newbuilding contract form.
NIPPONSALE X152. Maritime Arbitration and Dispute Resolution: Standard sale form whose arbitration clause typically refers disputes to TOMAC in Tokyo.
NIPPONSALE 1999 C1. Commercial shipping, chartering, economics and finance: Sale and purchase form of the Japan Shipping Exchange.
NIPR (National Institute of Polar Research, Japan) X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Operator of the Japanese icebreaker Shirase, which conducts incidental hydrographic survey in Antarctic waters.
NIPWG (Nautical Information Provision Working Group) X129. Hydrographic Offices, Survey Vessels and Marine Cartography: IHO working group developing S-100-based product specifications for nautical publications.
NIS X7. Flag State, Port State Control and Detention Vocabulary: Norwegian International Ship Register, second register established 1987, administered from Bergen.
NIS Directive X48. Maritime Cybersecurity: Original 2016 European Union directive on security of network and information systems, succeeded by NIS2.
NIS2 Directive X25. Maritime Cybersecurity, OT and IT: See EU NIS2 Directive 2022/2555.
Niskin bottle X10. Marine Biology, Fisheries and Oceanography: Modern cylindrical water sampler used on CTD rosettes.
NIST X107. Maritime Cybersecurity and OT Security: National Institute of Standards and Technology, US federal agency publishing the Cybersecurity Framework.
NIST CSF E1. Maritime security, geopolitics and risk: US cybersecurity framework, adopted in many ship cyber baselines.
NIST CSF 2.0 X139. Maritime Cybersecurity, OT Threats and Standards: 2024 release of the Cybersecurity Framework adding the Govern function alongside Identify, Protect, Detect, Respond, and Recover.
NIST CSF v2.0 X25. Maritime Cybersecurity, OT and IT: NIST Cybersecurity Framework version 2.0, published 26 February 2024.
NIST Cybersecurity Framework X22. Piracy, Maritime Security and Armed Protection: US National Institute of Standards and Technology voluntary framework cited in BIMCO guidelines.
NIST Cybersecurity Framework (CSF) X148. Maritime Cybersecurity, IACS Cyber Rules, and Incidents: The voluntary framework whose functions Identify, Protect, Detect, Respond, Recover (with Govern added in CSF 2.0, February 2024) underpin BIMCO and USCG guidance.
NIST SP 800-171 X48. Maritime Cybersecurity: US standard for protecting controlled unclassified information in non federal systems, relevant to maritime defense contractors.
NIST SP 800-53 X48. Maritime Cybersecurity: US federal catalog of security and privacy controls referenced by some maritime operators.
NIST SP 800-53 Rev 5 X25. Maritime Cybersecurity, OT and IT: US federal security and privacy control catalog.
NIST SP 800-61 X48. Maritime Cybersecurity: US guide to computer security incident handling used by maritime incident response teams.
NIST SP 800-82 X48. Maritime Cybersecurity: US guide to industrial control systems security, applicable to shipboard OT.
NIST SP 800-82 Rev 3 X25. Maritime Cybersecurity, OT and IT: Guide to operational technology security, released September 2023.
NIST SP 800-82r3 X139. Maritime Cybersecurity, OT Threats and Standards: April 2023 Guide to Operational Technology Security, replacing the 2015 r2 ICS Security Guide.
NIST traceable X122. Submarine Cable Laying, Repair Vessels and Operators: Calibration chain for cable test equipment, required by major operators including SubCom and ASN test labs.
NIT X6. Container, Intermodal and Trade Codes: Nominated Inland Terminal, depot used by a particular carrier.
NIT Karnataka Department of Applied Mechanics and Hydraulics Marine Track X121. Maritime Education, Academies and Universities: Surathkal, marine structures research.
NIT Norfolk International Terminals X138. Global Container Terminal Operators and Port Equipment: Virginia Port Authority's primary container facility handling 3.5 million TEU in FY2023.
Niter (Sodium Nitrate) X1. Cargo Science, Commodities and Cargo Care: Class 5.1 oxidizer.
Nitrate (NO3-) X10. Marine Biology, Fisheries and Oceanography: Principal inorganic nitrogen nutrient in oxygenated seawater.
Nitrate Discharge Limit X69. EGCS Scrubbers, SCR and Marine Air Emissions: Washwater discharge requirement for nitrate under MEPC.340(77).
Nitric Acid X75. IMDG Code, Classes, Packing and Segregation: UN 2031, Class 8 with Class 5.1 subsidiary risk depending on concentration.
Nitric Acid UN 2031 X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: A Class 8 corrosive liquid with subsidiary risk 5.1 above 65 per cent; below 65 per cent it is PG II straight Class 8.
Nitric Oxide (NO) X69. EGCS Scrubbers, SCR and Marine Air Emissions: Primary NOx species formed during combustion.
Nitric Oxide Compressed X75. IMDG Code, Classes, Packing and Segregation: UN 1660, Class 2.3 with Class 5.1 and 8 subsidiary risks.
Nitrile Gloves (Galley) X120. Marine Catering, Provisions and Ship Chandlers: IMPA 174152 powder-free nitrile gloves, color coded blue for food safety.
Nitrite (NO2-) X10. Marine Biology, Fisheries and Oceanography: Intermediate in nitrogen cycling between ammonium and nitrate.
Nitrite Inhibitor X174. Marine Engine Maintenance, Overhaul, and Condition Monitoring: Sodium nitrite added to closed-loop jacket cooling water to prevent ferrous corrosion, dosed to 1,000 to 2,400 ppm.
Nitrogen Blanketing X1. Cargo Science, Commodities and Cargo Care: Filling tank vapor space with N2 to prevent oxidation.
Nitrogen Compressed X75. IMDG Code, Classes, Packing and Segregation: UN 1066, Class 2.2 non flammable non toxic gas.
Nitrogen deoxygenation X18. Ballast Water, Biofouling and Antifouling: BWMS approach injecting nitrogen to displace oxygen.
Nitrogen Dioxide (NO2) X69. EGCS Scrubbers, SCR and Marine Air Emissions: Secondary NOx species formed by oxidation of NO in the exhaust.
Nitrogen fixation X10. Marine Biology, Fisheries and Oceanography: Conversion of N2 to ammonia, performed by cyanobacteria such as *Trichodesmium*.
Nitrogen flush X26. Reefer Containers and Cold Chain Logistics: Pre-loading inerting of CA reefer atmosphere with bottled or generated N2.
Nitrogen generator X56. LNG/LPG Carriers and IGC Code: Onboard plant producing pressurized nitrogen for inerting and barrier space purging.
Nitrogen generator (PSA) B2. Marine Engineering: Pressure-swing adsorption nitrogen plant.
Nitrogen Inerting X110. LNG Bunkering Infrastructure and Vessels: Use of dry nitrogen to displace oxygen from LNG bunker piping and tanks prior to LNG transfer.
Nitrogen injection X70. Reefer Containers and Cold Chain Shipping: Method of displacing oxygen inside a controlled-atmosphere reefer container by introducing gaseous nitrogen.
Nitrogen oxides (NOx) X27. Polar Code, Ice Navigation and Polar Operations: Subject to MARPOL Annex VI Tier limits; relevant to polar engines.
Nitrogen Pad X103. US Inland Waterway Towing and Barge: An inert gas blanket maintained over cargo in a tank barge.
Nitrogen Padding X93. IBC Code and Chemical Tanker Operations: Practice of loading cargo under a nitrogen blanket and maintaining it during the voyage to prevent oxidation.
Nitrogen Refrigerated Liquid X75. IMDG Code, Classes, Packing and Segregation: UN 1977, Class 2.2 cryogenic gas.
Nitrogen Refrigerated Liquid UN 1977 X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: A Class 2.2 deeply refrigerated cryogenic liquid with asphyxiant properties.
Nitroglycerin Desensitized X75. IMDG Code, Classes, Packing and Segregation: UN 0143 desensitized with not less than 40 percent water or non volatile desensitizer, Class 1.1D.
Nitromethane X75. IMDG Code, Classes, Packing and Segregation: UN 1261, Class 3 flammable liquid Packing Group II.
Nitrous Oxide (N2O) X69. EGCS Scrubbers, SCR and Marine Air Emissions: Greenhouse gas occasionally formed in low-temperature SCR operation.
Nitrox X14. Offshore Oil and Gas Marine Operations: Oxygen-enriched diving gas mix.
Niue Flag X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A small South Pacific registry named in dark-fleet reporting.
NIWA D5. Coastal processes, sea-level, cryosphere and ocean observation science: National Institute of Water and Atmospheric Research, New Zealand.
NJ Wind Port X42. Offshore Wind Installation and Cable Lay: Purpose built New Jersey offshore wind marshaling facility on the Delaware River.
NK X7. Flag State, Port State Control and Detention Vocabulary: Nippon Kaiji Kyokai, ClassNK, IACS member headquartered in Tokyo.
NK (ClassNK / Nippon Kaiji Kyokai) X5. Marine Surveying and Inspection: IACS member classification society.
NK (Nippon Kaiji Kyokai) X146. Port State Control Regimes, MoUs, and Inspection Systems: A recognized organization, also known as ClassNK, tracked in the Paris MoU RO performance list.
NK Class (ClassNK) X30. Tug Operations and Harbour Towage: Nippon Kaiji Kyokai, classification society used on Japanese-built tugs.
NK HSM X96. Hull Integrity Monitoring and Strain Gauges: ClassNK hull stress monitoring class notation.
NK M0 X19. Engine Room Watchkeeping and UMS Operations: Older numeric form of the NK MO notation in some documents.
NK MO X19. Engine Room Watchkeeping and UMS Operations: Nippon Kaiji Kyokai class notation for unattended machinery space.
NK NS-star X8. IACS, Class Rules and Class Notations: ClassNK principal hull notation for vessels built under NK survey with star indicating full attendance.
NK NS* X54. Naval Architecture Software and IACS Rules: ClassNK notation indicating compliance with NK rules for unrestricted service.
NK P&I X145. P&I Clubs, War Risk Insurers, and Marine Insurance Markets: Affiliate of Japan P&I Club.
NK PrimeShip X54. Naval Architecture Software and IACS Rules: ClassNK family of class software including PrimeShip-HULL and PrimeShip-CMS.
NK Recycling Services X147. Ship Recycling, Hong Kong Convention, and Recycling Yards: Sub-brand under ClassNK for ship recycling certification.
NK Shipping Asia X118. Ship Recycling Yards, Beaches and Regulation: Cash-buyer headquartered in Dubai with operations across South Asia.
NK steel grade KA32 B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: ClassNK ship plate grade.
NKK Surveyor X43. Marine Surveying and Warranty Surveying: A field surveyor employed by Nippon Kaiji Kyokai, also branded ClassNK, for classification and statutory work.
NKT X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Danish manufacturer of HVDC and HVAC submarine power cables, with factories in Karlskrona, Sweden, and Cologne, Germany.
NKT Victoria X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Cable installation vessel of NKT, commissioned in 2017, with 9,000 t turntable capacity.
NLB X88. Marine Surface Preparation and Coatings Application: US manufacturer of high-pressure and ultra-high-pressure water-jetting pump units and accessories.
NLBV X32. Marine Pilotage and Pilot Operations: Nederlands Loodswezen BV, the Dutch pilots' service operator.
NLDC Bunker Sampling X72. Bunkering Hubs and Bunker Suppliers: Norwegian Local Dispute Committee guidance on bunker sampling occasionally referenced in northern European supply contracts.
NLGI 0 X61. Marine Lubricants and Cylinder Oils: National Lubricating Grease Institute grade 0 designating a soft semifluid grease.
NLGI 1 X61. Marine Lubricants and Cylinder Oils: NLGI grade 1 grease, softer than the general purpose NLGI 2.
NLGI 2 X61. Marine Lubricants and Cylinder Oils: NLGI grade 2 grease, the most common consistency for marine deck machinery and electric motor bearings.
NLGI 3 X61. Marine Lubricants and Cylinder Oils: NLGI grade 3 grease, used where dripping must be minimized.
NLGI EP2 X61. Marine Lubricants and Cylinder Oils: Common shorthand for an extreme pressure grease of NLGI consistency 2.
NLMK X92. Marine Steel Suppliers and Shipbuilding Plate: Novolipetsk Steel, Russian integrated steel producer headquartered in Lipetsk.
NLNG X134. LNG and LPG Carrier Operators and Containment Systems: Nigeria LNG Limited, operator of Bonny Gas Transport fleet of 24 LNG carriers serving Bonny Island liquefaction.
NLS X93. IBC Code and Chemical Tanker Operations: Noxious Liquid Substance, the MARPOL Annex II term for liquid cargoes evaluated for marine pollution risk.
NLS (Noxious Liquid Substance) X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary: Any substance indicated as such in the IBC Code Chapter 17 pollution category column or provisionally assessed under Reg 6 of Annex II.
NLS Categorization OS (Other Substances) X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary: Substances which have been evaluated and found to fall outside categories X, Y, or Z and are considered to present no harm.
NLS Categorization X X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary: Noxious liquid substances which if discharged into the sea from tank cleaning or deballasting are deemed to present a major hazard to either marine resources or human health.
NLS Categorization Y X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary: Substances which present a hazard to either marine resources or human health or cause harm to amenities or other legitimate uses of the sea.
NLS Categorization Z X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary: Substances which present a minor hazard to either marine resources or human health.
NLS Certificate X5. Marine Surveying and Inspection: International Pollution Prevention Certificate for the Carriage of NLS in Bulk.
NLS Tank Survey X5. Marine Surveying and Inspection: Inspection and stripping verification for Noxious Liquid Substance tanks.
NLS Tanker A3. Marine environmental legislation: MARPOL and its annexes: Ship carrying noxious liquid substances under MARPOL Annex II.
NM X73. Marine Hydrography, Charting and ENC: Notice to Mariners.
NM Square X80. Maritime Search and Rescue Coordination: Nautical mile square used to delineate search subareas.
NMA X42. Offshore Wind Installation and Cable Lay: Norwegian Maritime Authority, regulator for Norwegian flag offshore wind support vessels.
Nmap X25. Maritime Cybersecurity, OT and IT: Open source network scanner used in vulnerability assessment.
NMC Battery X67. Marine Electrical Systems and Shore Power: Nickel manganese cobalt chemistry used in marine lithium-ion battery systems where energy density is prioritized.
NMC Form CG-719K X36. Shipboard Medical, Telemedicine and Seafarer Health: US Coast Guard Medical Certificate for merchant mariners.
NMDC X124. Dredging Industry and Reclamation Contractors: National Marine Dredging Company, Abu Dhabi state contractor, NMDC Energy after 2023 merger.
NMDC Bonny X124. Dredging Industry and Reclamation Contractors: TSHD of 18,000 m3 capacity.
NMDC Ras Al Khaimah X124. Dredging Industry and Reclamation Contractors: NMDC TSHD of 11,000 m3.
NMEA 0183 B3. Nautical Science: Marine electronics serial data standard.
NMEA 0183 and 2000 X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Marine electronics communication standards used to exchange position, attitude, and depth data between sensors and acquisition software on survey vessels.
NMEA 0183/2000/OneNet E3. Technology, digitalization and smart shipping: Marine data interconnect standards.
NMEA 2000 B3. Nautical Science: CAN-based marine data network.
NMEA OneNet X48. Maritime Cybersecurity: Ethernet based marine networking standard developed by NMEA for IP based navigation networks.
NMF X169. Container Terminal Cranes, Yard Equipment, and Lashing: Norddeutsche Maschinenfabrik, German maker of shipboard cranes acquired by MacGregor and continued under the MacGregor brand.
NMFS X87. Fishing Vessels and Fisheries Management: US National Marine Fisheries Service within NOAA, federal manager of US fisheries.
NMIP X53. Marine Insurance, P&I and Hull Clauses: Norwegian Marine Insurance Plan, issued in 2013 with biennial revisions including the 2019 and 2023 versions, used as a leading non-Anglo hull and war risks form.
NMIP 2013 X108. Marine Insurance and P&I Clubs: The Norwegian Marine Insurance Plan 2013, updated through to the 2024 version, the principal Nordic hull and machinery wording.
NMRI X162. Naval Architecture, Stability, Resistance, and Structural Design: National Maritime Research Institute, Tokyo, Japan, formed 2001 from the former Ship Research Institute SRI.
NNPC Marine X72. Bunkering Hubs and Bunker Suppliers: Marketing arm of Nigerian National Petroleum Company including marine fuels distribution.
No action X7. Flag State, Port State Control and Detention Vocabulary: PSC action code 10, deficiency recorded without further action required.
No build zone X57. Ocean Energy Beyond Wind: Designated area in marine spatial plans where renewable, CCS, or hydrogen infrastructure cannot be sited.
No Cure No Pay X4. Marine Insurance, P&I and Claims: traditional salvage principle that salvors are paid only on success.
No Cure No Pay Clause X86. Port Agency, Husbandry and Disbursement: Salvage principle sometimes intersecting with agency support to vessels in distress.
No Damage Out-Gate X83. ISO Container Manufacturing and Leasing: Out-gate of an empty container after off-hire survey with no repair charges.
No flow alarm X19. Engine Room Watchkeeping and UMS Operations: Alarm on lube or cooling system indicating loss of circulation.
No higher X3. Ship Handling, Seamanship and Deck Vocabulary: Helm order to the helmsman not to come closer to the wind.
No joint rule X32. Marine Pilotage and Pilot Operations: SOLAS V/23 prohibition on joints in the lower four lengths of pilot ladder side ropes.
No lower X3. Ship Handling, Seamanship and Deck Vocabulary: Order not to fall off any further.
No More Favorable Treatment A7. Compliance, certification and enforcement: Principle in MLC Article V(7) and MARPOL Article 5(4) preventing favorable treatment of non-party ships.
No More Favourable Treatment X66. Port State Control and Regional MOUs: Principle ensuring that non-party ships are not treated more favourably than party ships during PSC.
No oral hearing X152. Maritime Arbitration and Dispute Resolution: Documents-only procedure available under LMAA Small Claims Procedure and many institutional expedited tracks.
No Smoking X75. IMDG Code, Classes, Packing and Segregation: Stowage condition implicit during dangerous goods handling, reinforced by EmS schedules.
No Voltage Release X67. Marine Electrical Systems and Shore Power: Undervoltage coil on a marine motor starter that drops out when supply voltage is lost.
No-Anchoring Area X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Spatial designation prohibiting anchoring to protect submarine cables, pipelines, or sensitive habitats.
No-bare-hand-contact Rule X41. Cruise Ship Public Health and VSP/USPH: VSP requirement that ready-to-eat foods not be touched with bare hands during preparation or plating.
No-blame principle X163. Marine Accident Investigation Agencies and Landmark Inquiries: Foundational rule of the Casualty Investigation Code that the sole objective of a marine safety investigation is to prevent future marine casualties and incidents and not to determine liability or…
No-Cost Repatriation Principle X154. Maritime Welfare, Seafarer Charities, and MLC Rights: MLC core rule that seafarers must not bear repatriation costs except in cases of serious default.
No-Email-Tail Stripping X68. Maritime Satcom and Telecommunications: Onboard email gateway feature that removes signatures and disclaimers to reduce data over satellite.
No-frost coil X26. Reefer Containers and Cold Chain Logistics: Evaporator design or control logic minimizing frost build-up.
No-go area B3. Nautical Science: Area on passage plan excluded from passage.
No-go zone X15. Ports, Terminals and Stevedoring: depth area marked on ECDIS based on UKC calculation.
No-Load Brake Test X169. Container Terminal Cranes, Yard Equipment, and Lashing: Routine check of crane hoist brake holding capability without load on the hook, performed at shift start.
No-Russian-Oil Clause X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A contractual provision required under the EU 12th Package for charter parties and bills of lading covering vessels engaged in oil trades, certifying compliance with the price cap.
No-Slip Boundary X54. Naval Architecture Software and IACS Rules: Standard wall condition for viscous CFD ship simulations in STAR-CCM+ and Fluent.
No-Stop Limit X82. Saturation Diving and Offshore Diving Operations: Maximum bottom time at a depth that permits a direct ascent.
No-Take MPA D4. Fisheries, aquaculture, blue economy and marine resources: Reserve excluding all extractive activities.
No-Take Zone D3. Marine environmental science, pollution and conservation: MPA where extractive activities are prohibited.
NO96 X20. LNG Operations and Custody Transfer: GTT membrane CCS using two Invar barriers and plywood boxes filled with perlite.
NO96 GW X20. LNG Operations and Custody Transfer: GTT variant with glass-wool insulation reducing BOR to about 0.115 percent per day.
NO96 L03 / L03+ X20. LNG Operations and Custody Transfer: Recent GTT enhancements with reinforced plywood boxes and improved insulation reaching about 0.085 percent per day.
NO96 Max X56. LNG/LPG Carriers and IGC Code: GTT NO96 evolution providing optimized insulation for very low boil-off performance.
NO96 Super+ X20. LNG Operations and Custody Transfer: GTT latest NO96 evolution reaching BOR around 0.07 percent per day on standard 174k cube.
NOAA D1. Physical and chemical oceanography and marine meteorology: National Oceanic and Atmospheric Administration of the United States.
NOAA Atlantic Hydrographic Branch X129. Hydrographic Offices, Survey Vessels and Marine Cartography: NOAA OCS field branch in Norfolk, Virginia, supporting east coast and Gulf of Mexico hydrographic survey operations.
NOAA chart X16. Nautical Science, Navigation and COLREGs: US nautical chart issued by NOAA Office of Coast Survey.
NOAA Custom Chart X73. Marine Hydrography, Charting and ENC: NCC, a NOAA service producing user-defined PDF chart areas derived from US ENCs after the sunset of legacy paper charts.
NOAA ENC X73. Marine Hydrography, Charting and ENC: The US ENC dataset issued by the Office of Coast Survey.
NOAA ENC Direct X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Public website distributing US ENC cells freely under NOAA's open-data policy.
NOAA Marine Chart Division X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Division within NOAA OCS responsible for compiling, maintaining, and publishing US ENCs and paper charts.
NOAA NESDIS D5. Coastal processes, sea-level, cryosphere and ocean observation science: NOAA's satellite data service.
NOAA Office of Coast Survey X73. Marine Hydrography, Charting and ENC: OCS, the US federal hydrographic office, descendant of the 1807 Survey of the Coast.
NOAA Office of Response and Restoration X60. Marine Salvage and Wreck Removal: US scientific support for oil and chemical spill response, including GNOME modeling.
NOAA OR&R X167. Major Salvage Companies, Wreck Removals, and Equipment: US National Oceanic and Atmospheric Administration Office of Response and Restoration, providing scientific support during salvage spill response.
NOAA Pacific Hydrographic Branch X129. Hydrographic Offices, Survey Vessels and Marine Cartography: NOAA OCS field branch in Seattle, Washington, supporting west coast and Alaskan hydrographic survey operations.
NOAA SARSAT X80. Maritime Search and Rescue Coordination: US ground segment operator of Cospas-Sarsat at NOAA Suitland.
NOAA Ship Fairweather (S 220) X129. Hydrographic Offices, Survey Vessels and Marine Cartography: NOAA hydrographic survey ship homeported in Ketchikan, Alaska, built in 1968 by Aerojet General, performing multibeam surveys of Alaskan waters.
NOAA Ship Rainier (S 221) X129. Hydrographic Offices, Survey Vessels and Marine Cartography: NOAA hydrographic survey ship homeported in Newport, Oregon, built in 1968 by Aerojet General, conducting multibeam surveys along the US west coast and Alaska.
NOAA Ship Thomas Jefferson (S 222) X129. Hydrographic Offices, Survey Vessels and Marine Cartography: NOAA hydrographic survey ship homeported in Norfolk, Virginia, originally built as USNS Littlehales in 1991 and transferred to NOAA in 2003.
NOAA SIMP X87. Fishing Vessels and Fisheries Management: Seafood Import Monitoring Program, a US documentation and traceability program for imports of priority species.
NOAA WaveWatch III X96. Hull Integrity Monitoring and Strain Gauges: Third-generation spectral wave model developed at NOAA and widely used for global wave forecasting.
Noack volatility X61. Marine Lubricants and Cylinder Oils: Mass loss of oil at 250 degrees Celsius over one hour per ASTM D5800, indicating evaporative tendency.
Nobiskrug X35. Yacht and Superyacht Industry: German shipyard in Rendsburg that built A (Sailing Yacht A).
Noble Corporation X14. Offshore Oil and Gas Marine Operations: Major offshore drilling contractor.
Noble Denton X43. Marine Surveying and Warranty Surveying: A historic London-based marine warranty and consultancy practice now operating within DNV under its energy systems division.
Noble Discoverer X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Former Frontier Discoverer drillship used in Arctic Alaska drilling.
Noble Don Taylor X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Bully II-class drillship operated by Noble.
Noble Globetrotter X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Bully-class enhanced drillship operated by Noble in deepwater plays.
Noble Voyager X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Drillship in the Noble fleet inherited from Maersk Drilling, formerly Maersk Voyager.
NOBOB X18. Ballast Water, Biofouling and Antifouling: No Ballast on Board, a vessel condition that still requires sediment management because residual water and sediment remain.
NOBRA X32. Marine Pilotage and Pilot Operations: New Orleans-Baton Rouge Steamship Pilots Association.
NOC X68. Maritime Satcom and Telecommunications: Network Operations Center monitoring satellite services and customer terminals.
Nodal Cycle Sea Level Modulation D5. Coastal processes, sea-level, cryosphere and ocean observation science: 18.6-year tidal modulation of sea-level extremes.
Nodal Modulation D2. Hydrography, tides, waves, bathymetry and marine geology: 18.6-year cycle in tidal amplitudes from lunar nodal precession.
Nodicta (polar) X27. Polar Code, Ice Navigation and Polar Operations: Polar Code definition of "operational" issues addressed in PWOM.
Nodule (Polymetallic) D4. Fisheries, aquaculture, blue economy and marine resources: Manganese-rich nodule on abyssal plains, target of deep-sea mining proposals.
Noell X46. Container Terminal Operations: A historic German port equipment brand, the source of straddle carrier and automated stacking crane designs now sold by Konecranes.
Noell Crane Systems X169. Container Terminal Cranes, Yard Equipment, and Lashing: German crane maker acquired in stages by KCI Konecranes, contributing the Noell straddle carrier, RTG, and RMG product lines.
NOFI X13. Marine Salvage and Wreck Removal: Norwegian boom and current buster manufacturer used in offshore oil response.
NOFI Current Buster X60. Marine Salvage and Wreck Removal: Towed oil collection and concentration system enabling high speed sweeping.
NOFO X126. Marine Oil Spill Response and OPRC Regimes: Norwegian Clean Seas Association for Operating Companies, cooperative of offshore operators with 80 dedicated stockpiles.
NoFoFlex Salvage Hose X167. Major Salvage Companies, Wreck Removals, and Equipment: Floating hose type used to transfer recovered oil from wreck to barge.
NoGAPS Project X140. Ammonia as Marine Fuel and Hydrogen Shipping: Nordic Green Ammonia Powered Ships, MAN, DNV, Yara, Wartsila consortium developing 41,000 cbm NH3 carrier design.
Noise Budget D3. Marine environmental science, pollution and conservation: Cumulative underwater noise assessment.
Noise Code A2. Maritime safety legislation: SOLAS and its codes: Code on Noise Levels On Board Ships, mandatory under SOLAS II-1/3-12.
Noise emission to water (URN) B1. Naval Architecture: Underwater radiated noise per DNV SILENT class.
Noise Exposure Monitoring at Yards X50. Ship Recycling, Demolition and Hong Kong Convention: The occupational hygiene monitoring of noise exposure for cutting and shearing workers.
Noise Floor X96. Hull Integrity Monitoring and Strain Gauges: Lowest level of measurable signal above instrumentation noise in a strain or vibration channel.
Noise mitigation X42. Offshore Wind Installation and Cable Lay: Measures such as bubble curtains, hydro sound dampers, and noise mitigation screens reducing pile driving sound exposure.
Noise survey X59. Offshore Wind O&M, CTVs and SOVs: Acoustic measurement campaign verifying compliance with marine mammal protection requirements during operations.
Noisy Neighbor X48. Maritime Cybersecurity: Tenant or process whose behavior interferes with others on a shared shipboard or cloud platform.
NOK X32. Marine Pilotage and Pilot Operations: Nord-Ostsee-Kanal, the Kiel Canal, with compulsory pilotage above 1,600 GT.
NOK Pilots X159. Marine Pilotage, Pilot Districts, and Pilots' Associations: German Nord-Ostsee-Kanal pilots required for all vessels above defined dimensions transiting the Kiel Canal.
Nokia Bell Labs X122. Submarine Cable Laying, Repair Vessels and Operators: Research arm whose Murray Hill team developed coherent transmission used in current submarine line terminals, distinct from ASN now under French state ownership.
Nomad USV X109. Maritime Autonomous Surface Ships and MASS Code: A United States Navy Overlord program unmanned surface vessel used for fleet experimentation.
Nominal armour size X175. Port Engineering, Dredging, Breakwaters, and Quays: Equivalent cube side length used to characterize armour rock or concrete units in stability formulas.
Nominal Capacity X9. Cargo Securing, Lashing and Stability Vocabulary: Manufacturer-rated capacity, often identical to MSL.
Nominal Capacity (m3) X20. LNG Operations and Custody Transfer: Geometric tank volume at 100 percent filling at reference temperature minus 163 degrees C.
Nominal continuous rating (NCR) B2. Marine Engineering: Sea service power, typically 0.85 MCR.
Nominal Diameter X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Quoted bar or rope diameter used in selection tables, distinct from measured circumference or actual breaking load.
Nominal Flat Rate X44. Shipping Indices, FFAs and Freight Markets: Worldscale Worldscale 100 value for a route, against which voyage assessments are expressed as percentages.
Nominal Range X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: Luminous range of a light in a meteorological visibility of 10 nautical miles.
Nominal thickness X165. Marine Coatings, Antifouling, and Hull Husbandry: See NDFT; the specified average film thickness in micrometers for each coating layer.
Nominal viscosity X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Trade reference viscosity such as 380 or 180 cSt at 50 C.
Nominal voltage X42. Offshore Wind Installation and Cable Lay: Reference voltage of an array (33 kV or 66 kV) or export (132 kV to 525 kV) cable circuit.
Nominal wake B1. Naval Architecture: Wake measured at the propeller plane without the propeller.
Nominal wake fraction w_n X38. Propellers, Stern Gear and Shaft Lines: Wake fraction measured without the propeller present.
Nominated Agency X86. Port Agency, Husbandry and Disbursement: Agency nominated under the charter party or by post-fixture instructions.
Nominated agent X15. Ports, Terminals and Stevedoring: shipping agent representing the master at the port.
Nominated Recycling Facility X118. Ship Recycling Yards, Beaches and Regulation: Facility identified by the owner in the SRP and IRRC; ship may only be delivered to that named facility under HKC.
Nomination X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Buyer's request to a supplier for a specified quantity and grade of bunkers at a stated port.
Nominee X29. Ship Sale and Purchase, Management Contracts and Valuation: SPV taking title for ultimate beneficial buyer.
NoMIS X117. Marine Insurance Markets, Captives and Reinsurance: Nordic Marine Insurance Statistics, the CEFOR database underpinning hull claim trend reporting.
Non Mandatory MASS Code X109. Maritime Autonomous Surface Ships and MASS Code: The voluntary version of the IMO MASS Code targeted for adoption in 2024 ahead of the mandatory instrument.
Non Refillable Receptacle X75. IMDG Code, Classes, Packing and Segregation: Pressure receptacle designed for single use, IMDG 6.2 with marking restrictions.
Non Repudiation X48. Maritime Cybersecurity: Property that the originator of an action cannot credibly deny having performed it.
Non-Annex VII Country X28. Ship Recycling and End-of-Life: Country outside the OECD, EU, and Liechtenstein, restricted under the Basel Ban Amendment.
Non-Asbestos Gasket Substitution Records X50. Ship Recycling, Demolition and Hong Kong Convention: The IHM Part I evidence of refit replacements of asbestos gaskets with aramid or graphite alternatives.
Non-Authoritative Data X73. Marine Hydrography, Charting and ENC: Data issued outside official HO channels; not compliant with SOLAS V chart carriage.
Non-availability claim X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Buyer claim against supplier when compliant fuel is not delivered.
Non-Beaching Method X28. Ship Recycling and End-of-Life: Alongside, landing slipway, or dry-dock recycling as alternatives to tidal beaching.
Non-bulk Packaging X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Packaging with a capacity of 450 L or less or net mass of 400 kg or less for solids.
Non-Class Survey X43. Marine Surveying and Warranty Surveying: Any commercial inspection performed outside the formal class rulebook, including condition, sale and purchase, and cargo work.
Non-Cleared FFA X44. Shipping Indices, FFAs and Freight Markets: Bilateral Forward Freight Agreement still executed under FFABA terms but settled directly between counterparties.
Non-climacteric fruit X26. Reefer Containers and Cold Chain Logistics: Fruit not exhibiting ripening respiration burst, e.g., citrus, grapes, strawberries.
Non-Combatant Evacuation Operation (NEO) E2. Naval, defence and maritime law enforcement: Evacuation of civilians from a crisis area.
Non-compliant fuel X47. Marine Fuel Quality and ISO 8217: Bunker that fails to meet the agreed grade or a statutory limit such as the 0.50 percent sulfur cap.
Non-compulsory pilotage X32. Marine Pilotage and Pilot Operations: Pilotage available on request rather than by law.
Non-conformance report X15. Ports, Terminals and Stevedoring: NCR issued for procedural breaches.
Non-conformity X7. Flag State, Port State Control and Detention Vocabulary: ISM Code term for an observed situation where objective evidence indicates non-fulfillment of a requirement.
Non-Conformity (NC) X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: An ISM-defined finding category whose closure evidence is reviewed during SIRE 2.0 management chapters.
Non-Conformity Report X115. Marine Bunker and Cargo Surveying: Surveyor or laboratory document recording deviation of measured properties from ISO 8217 or contractual specification.
Non-Demise Clause X51. Maritime Arbitration, Law and BIMCO Clauses: A bill of lading provision intended to prevent identification of the time charterer as carrier, of contested effect.
Non-dimensional pitch (P/D) B1. Naval Architecture: Propeller pitch normalized by diameter.
Non-Disclosure X4. Marine Insurance, P&I and Claims: failure to disclose material circumstance, now governed by the Insurance Act 2015 proportionate remedies.
Non-Distress Assistance X80. Maritime Search and Rescue Coordination: Assistance rendered outside the SAR Convention framework.
Non-Domiciled Crew X154. Maritime Welfare, Seafarer Charities, and MLC Rights: Seafarer category often facing additional welfare risks due to distance from home jurisdiction.
Non-entangling FAD (NEFAD) X131. Commercial Fisheries, Trawler Fleets and Seafood Processors: FAD design without netting panels to prevent shark and turtle entanglement.
Non-EU Facility Inclusion (EU List) X118. Ship Recycling Yards, Beaches and Regulation: Process under EU SRR Article 15 by which non-EU recyclers apply for EU List inclusion, with first non-EU additions in 2020 (Turkey).
Non-EU port X34. Decarbonization, Alternative Fuels and Carbon Pricing: Port outside the EU/EEA; voyages to or from such ports counted at 50% under EU ETS Maritime.
Non-Ferrous Metal Recovery X50. Ship Recycling, Demolition and Hong Kong Convention: The salvage of copper, aluminum, lead, and brass during dismantling, often subcontracted to specialist recyclers.
Non-Ferrous Recovery X28. Ship Recycling and End-of-Life: Copper, brass, aluminium, and lead components recovered separately for non-ferrous mills.