Glossary

Maritime glossary, terms beginning with E (page 5)

All maritime glossary terms that begin with the letter E, drawn from every subject section. 1978 entries.

Showing 250 of 1978 terms (page 5 of 8).

Engine Room Insulation Removal X50. Ship Recycling, Demolition and Hong Kong Convention: The controlled stripping of asbestos-containing and man-made mineral fiber insulation before hot work.
Engine Room LAN X148. Maritime Cybersecurity, IACS Cyber Rules, and Incidents: The Ethernet network linking AMS, alarm, and propulsion HMIs, regarded as a critical OT zone.
Engine room log book X19. Engine Room Watchkeeping and UMS Operations: Statutory record of engineering events, parameters, and maintenance.
Engine Room Refit X113. Drydock and Ship Repair Yards: Comprehensive drydock workscope covering main engine, auxiliary engines, boilers, switchboards, and piping renewals.
Engine Room Resource Management (ERM) B2. Marine Engineering: STCW-mandated competency in engine watch.
Engine room round X19. Engine Room Watchkeeping and UMS Operations: Inspection circuit covering all machinery spaces during a UMS watch.
Engine Room Simulator X55. Marine Simulators, Training and Maritime Academies: Full mission or part-task simulator emulating a ship's machinery space for STCW Regulation III/1, III/2, and III/3 training.
Engine Room Simulator (ERS) X144. Bridge Simulators, Engine Room Simulators, and Maritime Training Equipment: STCW A-III/1 and A-III/2 mandatory trainer simulating main engine, auxiliary engines, boilers, separators, and switchboards.
Engine room watch C2. Ship operations, crewing and technical management: Periodic or unmanned engine room watch arrangement.
Engine room watchkeeping X59. Offshore Wind O&M, CTVs and SOVs: Continuous monitoring of an SOV's main and auxiliary plant by marine engineers on a watch rotation.
Engine seating X58. Shipbuilding Yards and Construction: Reinforced foundation under the main engine, integrated into engine block fabrication.
Engine Survey X43. Marine Surveying and Warranty Surveying: A class examination of main and auxiliary engines including crankshaft deflections, bearing clearances, and combustion performance.
Engine telegraph X16. Nautical Science, Navigation and COLREGs: Bridge device for ordering engine speed.
Engine, two-stroke crosshead X58. Shipbuilding Yards and Construction: Slow-speed propulsion engine installed during engine room block outfitting.
Engineer X125. Superyacht Industry, Builders and Brokers: Yacht engineer department, headed by a Chief Engineer holding Y4 to Y1 MCA certification.
Engineer (Tariff Category) X99. Marine Salvage Awards and SCOPIC: SCOPIC personnel category covering marine and salvage engineers.
Engineer Manual EM 1110-2-5025 X124. Dredging Industry and Reclamation Contractors: USACE manual for dredging and dredged material management, the US bible for federal dredging.
Engineer of the watch X19. Engine Room Watchkeeping and UMS Operations: STCW Chapter VIII designated officer in charge of the engineering watch.
Engineer Officer of the Watch F3. Seafaring Life, Education, Professions and Institutions: STCW certification for the engine-room watchkeeping officer.
Engineer Officers' Mutual Indemnity X154. Maritime Welfare, Seafarer Charities, and MLC Rights: Historic British benefit society for marine engineers, predecessor to modern union welfare.
Engineer Regulation ER 1110-2-1156 X124. Dredging Industry and Reclamation Contractors: USACE regulation on safety of dams during dredging operations.
Engineer's alarm X19. Engine Room Watchkeeping and UMS Operations: Loud audible signal from ECR alerting on call engineer in cabin to attend.
Engineered armour unit X175. Port Engineering, Dredging, Breakwaters, and Quays: Precast concrete unit such as Tetrapod, Dolos, Accropode, Core-loc, or Xbloc used in place of natural rock on the armour layer of breakwaters.
Engineered Lift X104. Project Cargo Forwarders and Heavy Transport: Lift designed using site-specific calculations rather than catalog charts.
Engineered Safety Feature X75. IMDG Code, Classes, Packing and Segregation: Design feature of Class 7 packages that limits release in accident, considered in package type assignment.
Engineered securing arrangement X76. Stevedoring, Lashing and Cargo Securing: Project-specific stowage plan calculated for over-dimensional or heavy cargo.
Engineered Transport X104. Project Cargo Forwarders and Heavy Transport: Trailer move designed using axle distribution and route survey calculations.
Engineering Critical Assessment X104. Project Cargo Forwarders and Heavy Transport: Fitness for service review of a project unit before transport or installation.
Engineering Drawing Package X104. Project Cargo Forwarders and Heavy Transport: Bundle of arrangement, lifting, and transport drawings issued for a project move.
Engineering Equation Solver X54. Naval Architecture Software and IACS Rules: Simultaneous equation solver used for early-stage naval architecture estimation.
Engineering Estimate of Net LDT X50. Ship Recycling, Demolition and Hong Kong Convention: The independent calculation of light displacement tonnage applied during demolition pricing.
Engineering Liaison X104. Project Cargo Forwarders and Heavy Transport: Forwarder engineer who interfaces between manufacturer, contractor, and carrier.
Engineering Method Statement X104. Project Cargo Forwarders and Heavy Transport: Document setting out step-by-step procedure for a lifting or transport operation.
Engineering Office Hartmann X137. Harbour Tugs, Towage Operators and Tug Builders: German naval architecture firm with several towage clients.
Engineering Officer of the Watch (EOOW) X102. Seafarer Welfare and Maritime Charities: STCW Regulation III/1 watchkeeping rank for the engineering department.
Engineering Pump Room X63. Marine Auxiliary Machinery and Pumps: Dedicated space housing fresh water, sanitary, sewage, and other auxiliary pumps.
Engineering Risk Register X104. Project Cargo Forwarders and Heavy Transport: List of identified risks with mitigation actions for a project move.
Engineering Survey X104. Project Cargo Forwarders and Heavy Transport: Detailed measurement of equipment and route to support a project lift or move.
Engineering Workstation X139. Maritime Cybersecurity, OT Threats and Standards: Configuration host for PLCs and DCS, high-value target requiring strict access control under IEC 62443-3-3 SR 2.1.
Engineless X125. Superyacht Industry, Builders and Brokers: Sailing yachts designated under specific class notations as auxiliary or sail only.
English Admiralty Court X51. Maritime Arbitration, Law and BIMCO Clauses: The specialist court within the King's Bench Division dealing with in rem and in personam admiralty claims.
English Arbitration Act 1996 X51. Maritime Arbitration, Law and BIMCO Clauses: The statute consolidating the law of arbitration for seats in England, Wales, and Northern Ireland.
English Braids X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: UK manufacturer of synthetic mooring and rigging ropes.
English Channel X10. Marine Biology, Fisheries and Oceanography: Arm of the Atlantic Ocean between southern England and northern France.
English Channel Pilot X32. Marine Pilotage and Pilot Operations: Deep-sea pilot for the Channel, traditionally Trinity House Channel Pilots.
English Commercial Court X152. Maritime Arbitration and Dispute Resolution: Specialist branch of the King's Bench Division with supervisory jurisdiction over London-seated arbitrations including LMAA references.
English Harbour X35. Yacht and Superyacht Industry: Historic naval harbor in Antigua at the heart of the Caribbean superyacht season.
English Heritage Maritime Trades F3. Seafaring Life, Education, Professions and Institutions: Preserved skills of shipwrights and riggers.
English Law A5. Maritime Law, private and commercial: Frequent governing law and arbitration forum for shipping contracts.
English Law and Jurisdiction X114. Maritime Arbitration and Shipping Law Firms: Common law system and Commercial Court frequently chosen for shipping contracts under BIMCO and Asbatankvoy forms.
Enhanced Cooperating Non-Contracting Party X87. Fishing Vessels and Fisheries Management: Status accorded by some RFMOs to non-members that observe conservation and management measures.
Enhanced Due Diligence (EDD) E1. Maritime security, geopolitics and risk: Heightened KYC for high-risk counterparties.
Enhanced First Aid X59. Offshore Wind O&M, CTVs and SOVs: GWO module extending BST first aid to advanced casualty care for offshore wind technicians.
Enhanced Inspection (MLC) X154. Maritime Welfare, Seafarer Charities, and MLC Rights: Port-state procedure triggered by complaint or evident deficiency, allowing detailed welfare audit.
Enhanced Reefer Box X83. ISO Container Manufacturing and Leasing: Trade name for higher-capacity reefer containers, including 40-foot high-cube reefers from CIMC and MCI.
Enhanced Survey Programme X7. Flag State, Port State Control and Detention Vocabulary: ESP, IMO mandatory survey regime for bulk carriers and oil tankers.
Enhanced Survey Programme (ESP) X5. Marine Surveying and Inspection: Mandatory close-up and gauging regime for tankers and bulk carriers.
Enhanced Survey Programme (ESP) Code X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary: MSC.461(101), mandatory under SOLAS XI-1/2 for bulk carriers and oil tankers during periodical surveys.
Eni X81. Project Cargo, Heavy-Lift and Module Carriers: Italian integrated energy company, parent of Saipem until 2016 and customer for many heavy-lift and offshore projects.
ENI Class (Inland) X118. Ship Recycling Yards, Beaches and Regulation: European Number of Identification used for inland vessels; not directly within HKC scope which addresses sea-going ships of 500 GT and above.
Eni Trading and Shipping Vetting X40. Tanker Vetting, SIRE and VIQ: The vessel screening function of Eni S.p.A.'s commercial arm.
Eniram X25. Maritime Cybersecurity, OT and IT: Wartsila fleet performance and trim optimization platform.
Eniram Trim X78. Voyage Optimization and Vessel Performance Software: A trim optimization product originally developed by Eniram and continued under Wartsila ownership, using sensor data to recommend optimal trim in real time.
ENISA X25. Maritime Cybersecurity, OT and IT: European Union Agency for Cybersecurity headquartered in Athens.
ENISA Port Cybersecurity X48. Maritime Cybersecurity: European Union Agency for Cybersecurity guidance, including the 2019 Port Cybersecurity Good Practices for Cybersecurity in the Maritime Sector.
ENISA Threat Landscape X48. Maritime Cybersecurity: Annual ENISA publication that periodically includes a dedicated maritime or transport sector edition.
Enlarged Link X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Link of greater diameter than common links placed at the ends of a shot to accommodate a Kenter or D shackle.
ENMACOMVE X109. Maritime Autonomous Surface Ships and MASS Code: A European project investigating concepts for enhanced maritime communications and vessel autonomy.
ENMM Le Havre X121. Maritime Education, Academies and Universities: Ecole Nationale de la Marine Marchande Le Havre, one of four French merchant marine schools predating the consolidated ENSM.
ENMM Marseille X121. Maritime Education, Academies and Universities: Former Ecole Nationale de la Marine Marchande Marseille, merged into ENSM in 2010.
ENMM Nantes X121. Maritime Education, Academies and Universities: Former Nantes site, now part of ENSM.
ENMM Saint Malo X121. Maritime Education, Academies and Universities: Former Saint-Malo site, now part of ENSM.
Ennox X165. Marine Coatings, Antifouling, and Hull Husbandry: Manufacturer brand referenced in marine coating ozone-related context; placeholder.
ENP X73. Marine Hydrography, Charting and ENC: Electronic Nautical Publication.
Enraf 854 ATG X115. Marine Bunker and Cargo Surveying: Servo-type Automatic Tank Gauging system manufactured by Honeywell Enraf used on tankers and bunker barges.
ENS X6. Container, Intermodal and Trade Codes: Entry Summary Declaration, pre-arrival security filing into the EU's ICS2.
ENSCO 8500 Series X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Ensco-designed harsh-environment semisubmersible series for ultra-deepwater operations.
Ensco DS-12 X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Sixth-generation drillship in the Valaris fleet inherited from Ensco.
Ensemble Forecast D5. Coastal processes, sea-level, cryosphere and ocean observation science: Multiple model runs sampling forecast uncertainty.
Ensign F5. The Reference Layer: Glossary, Units, Signals and Information Sources: National maritime flag flown from the stern.
ENSM X121. Maritime Education, Academies and Universities: Ecole Nationale Superieure Maritime, France's merchant marine university, headquartered in Le Havre with sites in Marseille, Nantes and Saint-Malo, formed 2010.
ENSM Le Havre X160. Maritime Academies, Universities, and STCW Certification: Largest ENSM campus delivering long-cycle officer training (Officier Chef de Quart Passerelle et Machine) on the Normandy coast.
ENSO D1. Physical and chemical oceanography and marine meteorology: El Nino-Southern Oscillation, the dominant interannual coupled ocean-atmosphere mode in the tropical Pacific.
Enteric isolation X36. Shipboard Medical, Telemedicine and Seafarer Health: Cabin isolation for crew with infectious gastroenteritis (e.g., norovirus, salmonella).
Enteric Precautions X41. Cruise Ship Public Health and VSP/USPH: Infection control measures applied to symptomatic AGE cases including dedicated cabin and toilet.
Enterococci (intestinal) X18. Ballast Water, Biofouling and Antifouling: Indicator microbe regulated under D-2 to less than 100 cfu per 100 mL.
Enterprise (USS) CVN-80 X106. Naval Surface Combatants: Third Gerald R. Ford-class aircraft carrier under construction at Newport News Shipbuilding.
Enterprise Act 2016 X53. Marine Insurance, P&I and Hull Clauses: The UK statute that, among other reforms, introduced a remedy of damages for late payment of insurance claims, supplementing the Insurance Act 2015.
Enterprise Bargaining, Recycling Yards X50. Ship Recycling, Demolition and Hong Kong Convention: Worker remuneration and welfare agreements negotiated through national recycling industry associations.
Enterprise CVN-65 X11. Naval Vessels, Warship Systems and Naval Architecture: First nuclear-powered aircraft carrier, commissioned 1961, eight reactors.
Enterprise Resource Planning (Maritime) E3. Technology, digitalization and smart shipping: Owner/manager back-office software (e.g., Veson, DNV ShipManager).
Enterprise Resource Planning System X48. Maritime Cybersecurity: Shore based system handling finance, crewing, procurement, and operations, frequent target of ransomware.
Enterprise Value X49. Ship Finance, Leasing and Maritime Capital Markets: Market capitalization plus net debt, the basis for shipping multiples.
Enterprise-class Drillship X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Transocean Discoverer Enterprise-class dual derrick deepwater drillship series.
Entertainment Trunk X82. Saturation Diving and Offshore Diving Operations: Sealed passage through which media is passed into the living chamber.
Enthalpy D1. Physical and chemical oceanography and marine meteorology: Thermodynamic property combining internal energy and pressure-volume work.
Entity List (BIS) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A U.S. Commerce Department list of foreign parties subject to license requirements, separate from but often overlapping with OFAC's SDN List.
Entra ID X107. Maritime Cybersecurity and OT Security: Microsoft cloud identity and access management service, formerly known as Azure Active Directory.
Entrance X162. Naval Architecture, Stability, Resistance, and Structural Design: Forward portion of the underwater hull from the bow to the start of parallel middle body, characterized by its half-angle of entrance.
Entrance angle (half angle of entrance, iE) B1. Naval Architecture: Angle of the waterline at the bow.
Entrance channel X15. Ports, Terminals and Stevedoring: dredged approach from sea to harbor.
Entry X53. Marine Insurance, P&I and Hull Clauses: A vessel's enrollment with a P&I club for a policy year, evidenced by the certificate of entry.
Entry into Force A1. The IMO and the international regulatory framework: Date a convention becomes legally binding, governed by tonnage and ratification thresholds.
Entry into force (BWM) X18. Ballast Water, Biofouling and Antifouling: 8 September 2017, twelve months after the 30 state and 35 percent gross tonnage threshold was met.
Entry Inwards X86. Port Agency, Husbandry and Disbursement: Customs declaration on vessel arrival, lodged by the agent.
Entry Outwards X86. Port Agency, Husbandry and Disbursement: Customs declaration when applying for clearance to sail.
Entry pilot X32. Marine Pilotage and Pilot Operations: Pilot taking inbound vessels into the harbor.
ENVI-Marine X69. EGCS Scrubbers, SCR and Marine Air Emissions: Pacific Green Marine Technologies brand for its seawater scrubber system.
Enviroil clarifier B2. Marine Engineering: Oily-water separator unit.
Environmental claim C1. Commercial shipping, chartering, economics and finance: Liability for pollution or environmental damage.
Environmental compliance X61. Marine Lubricants and Cylinder Oils: Adherence to MARPOL, VGP, VIDA, and similar regulations governing fuel sulfur and oil discharges.
Environmental Compliance Module X109. Maritime Autonomous Surface Ships and MASS Code: A software subsystem that ensures autonomous voyages respect environmental zones such as MARPOL ECAs and PSSAs.
Environmental Control X93. IBC Code and Chemical Tanker Operations: Subject of IBC Code Chapter 9 covering inerting, padding, and venting controls for individual cargo tanks.
Environmental Flow D3. Marine environmental science, pollution and conservation: Water flow regime needed to sustain aquatic ecosystems.
Environmental Health Officer (EHO) X41. Cruise Ship Public Health and VSP/USPH: VSP inspector or shipboard equivalent responsible for routine and ad hoc sanitation oversight.
Environmental impact assessment C4. Ports, terminals and coastal/marine civil engineering: EIA, statutory assessment for port works.
Environmental Impact Assessment EIA X28. Ship Recycling and End-of-Life: Assessment required before the establishment or expansion of a recycling yard.
Environmental Management Plan, Yard X50. Ship Recycling, Demolition and Hong Kong Convention: The HKC and EU SRR mandated documentation of yard environmental controls.
Environmental monitoring X59. Offshore Wind O&M, CTVs and SOVs: Collection of metocean, marine mammal, and benthic data during operations as required by the wind farm consent.
Environmental Monitoring Plan X50. Ship Recycling, Demolition and Hong Kong Convention: The yard sampling regime for soil, sediment, water, and air quality required under MEPC.211(63).
Environmental Protection Authority (EPA) NZ X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Regulator for activities in New Zealand's EEZ including cable and pipeline consents.
Environmental Salvage X13. Marine Salvage and Wreck Removal: Operations whose primary value lies in preventing pollution under Article 14.
Environmental Salvage Award X141. Marine Salvage Industry and Wreck Removal Contractors: Proposed but never adopted ISU concept of separately remunerating spill prevention.
Environmental Sampling X41. Cruise Ship Public Health and VSP/USPH: Surface and water testing performed during outbreak investigation to identify reservoirs of contamination.
Environmental Ship Index (ESI) D6. Decarbonization, emissions and alternative fuels: Voluntary index used by ports to reward cleaner ships.
Environmentally Hazardous Substance Criteria X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: Acute aquatic toxicity Category 1, chronic Category 1 or 2 per GHS, used to flag marine pollutants.
Environmentally Hazardous Substance Mark X75. IMDG Code, Classes, Packing and Segregation: Fish and tree pictogram required for marine pollutants on packages above 5 liters or 5 kilograms, except when meeting LQ provisions in certain cases.
EnviroVoyage Conference X119. Maritime Conferences, Trade Shows and Awards: Annual environmental compliance event for ferries, hosted by Interferry.
Envisat X124. Dredging Industry and Reclamation Contractors: ESA satellite historically used to monitor dredging plume extents.
Envision Energy X104. Project Cargo Forwarders and Heavy Transport: Chinese wind turbine OEM whose nacelles and blades are frequent project cargo.
EO 13382 (Weapons of Mass Destruction Proliferators) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A 2005 executive order used to designate Iranian and North Korean shipping firms tied to proliferation procurement.
EO 13599 (Iranian Government and Financial Sector) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A 2012 executive order blocking property of the Government of Iran and Iranian financial institutions including NIOC-linked maritime payers.
EO 13608 (Foreign Sanctions Evaders) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A 2012 executive order authorizing prohibitions on persons who facilitate deceptive transactions for sanctioned Iranian or Syrian parties.
EO 13662 (Sectoral Sanctions, Russia) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A 2014 executive order establishing sectoral sanctions identifications, the legal basis for SSI List entries covering Russian energy.
EO 13846 (Reimposing Iran Sanctions) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A 2018 executive order following JCPOA withdrawal that re-authorized secondary sanctions on Iranian shipping and ports.
EO 13884 (Government of Venezuela Blocking) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A 2019 executive order blocking all property of the Government of Venezuela, including PDVSA shipping subsidiaries.
EO 14024 (Russian Harmful Foreign Activities) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A 2021 executive order that became the principal authority for post-2022 Russia designations, including dark-fleet enablers.
EO 14065 (Donetsk and Luhansk Regions) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: A February 21 2022 executive order prohibiting investment, trade, and financing to non-government-controlled Ukrainian regions.
EO 14066 (Russian Oil Import Ban) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: The March 8 2022 executive order prohibiting U.S. imports of Russian crude oil, petroleum, LNG, and coal.
EO 14068 (New Investment Prohibition) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: The March 11 2022 executive order banning U.S. imports of Russian seafood, alcohol, and diamonds, plus new investment.
EO 14071 (Services Ban) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: The April 6 2022 executive order banning U.S. provision of accounting, trust, corporate-formation, management-consulting, quantum, architecture, and engineering services to Russia.
EO 14114 (Secondary Sanctions on Foreign Banks) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes: The December 22 2023 executive order authorizing secondary sanctions on non-U.S. financial institutions facilitating Russian military-industrial transactions.
EOD X77. Naval Mine Warfare and Mine Countermeasures: Explosive Ordnance Disposal, the military specialty responsible for rendering safe and disposing of mines, IEDs, and other ordnance.
EOOW X19. Engine Room Watchkeeping and UMS Operations: Engineer officer of the watch.
EORI C3. Logistics, freight forwarding and multimodal trade: Economic Operator Registration and Identification number.
EOS X6. Container, Intermodal and Trade Codes: End of Service, term for retiring containers from fleet.
Eos (Royal Hellenic) X128. Sail Training Ships and Tall Ship Associations: Greek Navy sail training projects have used the name; STI member entries from Greece include the schooner Royal Helena and others rather than Eos.
EOS-Aura D5. Coastal processes, sea-level, cryosphere and ocean observation science: NASA satellite carrying atmospheric chemistry instruments.
EOSCA X126. Marine Oil Spill Response and OPRC Regimes: European Oilfield Specialty Chemicals Association.
EOSR (escape, evacuation and rescue) X27. Polar Code, Ice Navigation and Polar Operations: Polar Code Chapter 8 requirements; equipment must function in expected maximum expected time of rescue.
EOT Crane X169. Container Terminal Cranes, Yard Equipment, and Lashing: Electric Overhead Travelling crane used in workshops and warehouses, the design ancestor of the modern container yard gantry.
EOV (Essential Ocean Variable) D4. Fisheries, aquaculture, blue economy and marine resources: Key variables identified by GOOS for sustained monitoring.
EPA X6. Container, Intermodal and Trade Codes: US Environmental Protection Agency, relevant for reefer refrigerant rules.
EPA Method 4500 X41. Cruise Ship Public Health and VSP/USPH: Standard Method category cited for measurement of chlorine residual in potable water.
EPA Subpart J X126. Marine Oil Spill Response and OPRC Regimes: US National Contingency Plan Product Schedule listing dispersants, surface washing agents, and bioremediation products authorized for use.
EPA Tier X47. Marine Fuel Quality and ISO 8217: US regulatory tiers for marine engine emissions parallel to IMO NOx Tiers, requiring fuel quality compatible with aftertreatment.
EPC X14. Offshore Oil and Gas Marine Operations: Engineering, procurement, construction contract structure.
EPC 60 X63. Marine Auxiliary Machinery and Pumps: Alfa Laval separator control system used on P-Series and S-Series units.
EPC contract C4. Ports, terminals and coastal/marine civil engineering: Engineering procurement and construction contract.
EPC handover X59. Offshore Wind O&M, CTVs and SOVs: Formal transfer of the wind farm from the construction contractor to the operations team after performance testing.
EPCI X14. Offshore Oil and Gas Marine Operations: EPC plus installation; common offshore contract type.
EPCI contract X57. Ocean Energy Beyond Wind: Engineering, procurement, construction, and installation contract structure used for offshore renewable and CCS projects.
EPDM stave (water-lubricated bearing) X38. Propellers, Stern Gear and Shaft Lines: Elastomer stave geometry in a water-lubricated stern-tube bearing, allowing groove cooling and debris flushing.
EPF (Expeditionary Fast Transport) X132. High-Speed Craft, Hydrofoils and Ferry Operators: US Navy's Spearhead-class 103 m aluminium catamarans built by Austal USA in Mobile.
EPFS X89. ECDIS and Bridge Equipment Makers: Electronic Position Fixing System, the IMO term encompassing GNSS receivers and supporting positioning equipment.
Ephemera of the Sea F2. Maritime Culture, Heritage, Archaeology, Art and Museums: Postcards, menus, and tickets preserved by maritime archives.
Ephemeral Key X48. Maritime Cybersecurity: Short lived cryptographic key used for a single session.
Ephemeris B3. Nautical Science: Tabulated celestial positions.
Epibenthos X10. Marine Biology, Fisheries and Oceanography: Organisms living on the surface of the seabed.
Epichlorohydrin X135. Chemical Tanker Operators and IBC Code Cargoes: Category Y reactive chemical (C3H5ClO) requiring stainless steel containment and nitrogen blanket, a regular Stolt and Odfjell COA cargo from US Gulf and Korea.
Epifauna X10. Marine Biology, Fisheries and Oceanography: Animals living attached to or on the seabed surface.
Epipelagic zone X10. Marine Biology, Fisheries and Oceanography: Sunlit surface layer of the open ocean, typically 0 to 200 m.
EpiPen X36. Shipboard Medical, Telemedicine and Seafarer Health: Brand name for adrenaline auto-injector 0.3 mg IM device.
EPIRB A2. Maritime safety legislation: SOLAS and its codes: Emergency Position-Indicating Radio Beacon required under SOLAS IV/7.
EPIRB (Emergency Position-Indicating Radio Beacon) X16. Nautical Science, Navigation and COLREGs: 406 MHz Cospas-Sarsat beacon transmitting distress alerts.
EPIRB (Fishing Vessel) X87. Fishing Vessels and Fisheries Management: 406 megahertz emergency position indicating radio beacon required under Cape Town Agreement Annex IV and IMO LSA Code.
EPIRB Annual Test X5. Marine Surveying and Inspection: Verification of self test, battery date, and HRU on emergency beacons.
EPIRB-AIS X23. AIS, GMDSS, IALA Buoyage and Aids to Navigation: EPIRB with integrated AIS Message 1 locator (e.g., Ocean Signal rescueME EPIRB3).
Epistaxis management X36. Shipboard Medical, Telemedicine and Seafarer Health: Anterior nasal packing or nasal tampon held in ship chest.
EPL X112. IMO GHG Strategy, CII, EEXI and EU Maritime Regulation: Acronym for Engine Power Limitation under MEPC.335(76) guidelines.
EPL Onboard Management Manual (OMM) B2. Marine Engineering: Documentation of EPL settings.
Epoxy X45. Marine Paints, Coatings and Antifouling: Generic resin family forming the backbone of marine anticorrosive primers and tank linings.
Epoxy Anode Shield X100. Marine Cathodic Protection and Anodes: The epoxy-based dielectric coating component of an ICCP anode shield assembly.
Epoxy Coating X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: Fusion-bonded epoxy applied to pipeline field joints and external surfaces for corrosion protection.
Epoxy mastic X45. Marine Paints, Coatings and Antifouling: Surface-tolerant epoxy formulated for application to hand-cleaned or marginally prepared steel.
Epoxy novolac X45. Marine Paints, Coatings and Antifouling: High chemical-resistance epoxy used for cargo tank linings carrying aggressive chemicals.
Epoxy phenolic X45. Marine Paints, Coatings and Antifouling: Tank-lining chemistry providing solvent resistance for product tankers.
Epoxy zinc X45. Marine Paints, Coatings and Antifouling: Variant of zinc-rich primer using epoxy as binder.
EPR Insulation X67. Marine Electrical Systems and Shore Power: Ethylene propylene rubber insulation used in marine power and control cables to IEC 60092-353.
EPS X134. LNG and LPG Carrier Operators and Containment Systems: Eastern Pacific Shipping, private Singapore based ship manager controlled by Idan Ofer, spinoff parent of Cool Company.
EPS (Eastern Pacific Shipping) X111. Methanol, Ammonia and Alternative Marine Fuels: Singapore-based shipping company among the first ammonia dual-fuel engine order customers via MAN and WinGD.
EPS ammonia order X90. Marine Engine Specific Model Enumeration: Eastern Pacific Shipping commitment for ammonia dual-fuel two-stroke engines as part of early adopter fleet plans.
EPSG X129. Hydrographic Offices, Survey Vessels and Marine Cartography: European Petroleum Survey Group registry of geodetic and projected coordinate reference systems, now maintained by IOGP, used universally in hydrographic software.
EPSG Code D2. Hydrography, tides, waves, bathymetry and marine geology: Identifier in the EPSG geodetic parameter dataset.
EQ Mark X75. IMDG Code, Classes, Packing and Segregation: Excepted Quantity mark with class numbers and consignor or consignee initials.
EQT X125. Superyacht Industry, Builders and Brokers: Private equity firm that acquired full control of Lurssen in 2024 alongside the founding Lurssen family.
Equality at Sea X154. Maritime Welfare, Seafarer Charities, and MLC Rights: Welfare priority covering gender, race, sexual-orientation, and disability protection on board.
Equality of treatment X152. Maritime Arbitration and Dispute Resolution: Mandatory principle reflected in section 33 of the English Arbitration Act 1996 requiring the tribunal to act fairly and impartially as between the parties.
Equalizing Connection X67. Marine Electrical Systems and Shore Power: Cable that ties together the negative terminals of paralleled DC compound-wound generators, mostly historic.
Equasis F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Free online ship-information database operated by EMSA and partners.
Equasis Form 16 X155. Marine Surveying Practice and Cargo Inspection: The Port State Control inspection summary record maintained on the public Equasis database that surveyors consult during pre-purchase reviews.
EQUASIS Recycling Status X28. Ship Recycling and End-of-Life: Public flag of last-voyage transactions in the EQUASIS database.
Equation of time B3. Nautical Science: Difference between mean and apparent solar time.
Equator X16. Nautical Science, Navigation and COLREGs: Great circle equidistant from the geographic poles.
Equator Crossing Certificate F5. The Reference Layer: Glossary, Units, Signals and Information Sources: Traditional document issued to seafarers crossing the line.
Equatorial Counter Current D1. Physical and chemical oceanography and marine meteorology: Eastward flowing current between the North and South Equatorial Currents.
Equatorial current X3. Ship Handling, Seamanship and Deck Vocabulary: Westerly current in low latitudes.
Equatorial Guinea Ship Registry X98. Ship Registries and Flag States: National registry administered by the Ministry of Transport and Civil Aviation.
Equatorial Marine Fuel X111. Methanol, Ammonia and Alternative Marine Fuels: Singapore-based bunker supplier active in biofuel and methanol marine bunkering.
Equatorial Marine Fuel Management X72. Bunkering Hubs and Bunker Suppliers: Singapore licensed bunker supplier operating a fleet of bunker tankers in the Port of Singapore.
Equatorial Orbit X68. Maritime Satcom and Telecommunications: Orbit lying in the equatorial plane, used by geostationary maritime satellites.
Equatorial Ring X20. LNG Operations and Custody Transfer: Forged ring forming the structural and thermal interface of a Moss spherical tank to the hull skirt.
Equatorial Undercurrent D1. Physical and chemical oceanography and marine meteorology: Subsurface eastward jet along the equator.
Equatorial Undercurrent (EUC) X10. Marine Biology, Fisheries and Oceanography: Subsurface eastward current along the equator in the Pacific and Atlantic.
Equiano X91. Submarines and Submarine Cable Systems: Google-sponsored submarine cable from Lisbon to Cape Town with branches in West Africa, ready for service in 2022.
Equidistance Principle A6. Public international law of the sea: Default delimitation method, qualified by relevant circumstances.
Equilibrium beach profile X175. Port Engineering, Dredging, Breakwaters, and Quays: Idealized cross-shore beach profile that develops under prolonged average wave conditions.
Equilibrium Heel X9. Cargo Securing, Lashing and Stability Vocabulary: Steady-state heel under given moments.
Equilibrium polygon B1. Naval Architecture: Polar plot of equilibrium drift versus rudder for maneuvering.
Equilibrium Price X161. Shipbroking, Freight Derivatives, and Baltic Indices: Theoretical FFA settlement consistent with no-arbitrage between physical fixtures and forward curve.
Equilibrium temperature X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Storage temperature at which a residual fuel remains stable and pumpable.
Equilibrium Tide D2. Hydrography, tides, waves, bathymetry and marine geology: Theoretical tide assuming instantaneous adjustment to tide-generating forces.
Equilibrium Vapor Pressure X20. LNG Operations and Custody Transfer: Tank pressure setpoint maintained typically 1.06 to 1.25 bar absolute during voyage.
Equimar X124. Dredging Industry and Reclamation Contractors: Spanish dredging contractor active on Mediterranean ports.
Equinoctial Tide D2. Hydrography, tides, waves, bathymetry and marine geology: Larger spring tide occurring near the equinoxes.
Equinor X34. Decarbonization, Alternative Fuels and Carbon Pricing: Norwegian operator and partner in the Northern Lights CO2 storage project.
Equinor (Statoil) Vetting X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: The Norwegian operator's marine assurance function in Stavanger covering crude, product, and LNG offtake from NCS terminals.
Equinor Vetting X40. Tanker Vetting, SIRE and VIQ: The vessel screening function of Equinor ASA, formerly Statoil, a founding OCIMF member.
Equinox B3. Nautical Science: Vernal/autumnal crossing of the celestial equator.
Equipment carriage requirements X16. Nautical Science, Navigation and COLREGs: Navigational equipment required by SOLAS Chapter V Regulation 19.
Equipment failure mode C2. Ship operations, crewing and technical management: Classification of failure under FMEA.
Equipment Insurance X53. Marine Insurance, P&I and Hull Clauses: Cover for separately identified shipboard equipment such as containers, lashings, and removable items, often outside hull cover.
Equipment Interchange Receipt X83. ISO Container Manufacturing and Leasing: Document recording the condition of a container at each interchange between parties.
Equipment Interchange Receipt (EIR) X26. Reefer Containers and Cold Chain Logistics: Gate document recording reefer set point, machinery condition, and PTI status at handover.
Equipment Mobilization X60. Marine Salvage and Wreck Removal: Movement of salvage gear and personnel to a casualty location.
Equipment Number (EN) X5. Marine Surveying and Inspection: Class derived number used to size anchors and mooring lines.
Equipment Number Formula X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: IACS UR A1 expression EN = Delta^(2/3) + 2(hB + sum A) with Delta in m^3, h and B in m, and side projected area A in m^2.
Equipment Pool X83. ISO Container Manufacturing and Leasing: Shared pool of containers or chassis used by alliance members.
Equipment Surveillance X41. Cruise Ship Public Health and VSP/USPH: Routine verification that NSF-certified equipment retains its certification mark and remains in good repair.
Equipment Survey X43. Marine Surveying and Warranty Surveying: An inspection of specific shipboard equipment such as cranes, winches, anchor windlasses, or lifeboat launching gear.
Equipment Table X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Table within IACS UR A1 giving, for each range of equipment number, the number and mass of anchors, total chain length and grade-dependent diameter, and mooring/towing line characteristics.
Equipment User Code X83. ISO Container Manufacturing and Leasing: Subfield of ISO 6346 prefix denoting equipment category, set as U for freight containers.
Equiscope X159. Marine Pilotage, Pilot Districts, and Pilots' Associations: Trade name for one of the early PPU mountings used to position a GNSS antenna on the bridge wing.
Equitable Lien X51. Maritime Arbitration, Law and BIMCO Clauses: A non-possessory security right recognized in equity over property, distinct from a maritime lien.
Equity A6. Public international law of the sea: Element in maritime boundary delimitation per ICJ jurisprudence.
Equity Bridge X49. Ship Finance, Leasing and Maritime Capital Markets: Short term loan covering an equity contribution prior to its receipt by the borrower.
Equity bridge loan C1. Commercial shipping, chartering, economics and finance: Pre-delivery finance secured by sponsor equity commitments.
Equity Cure X49. Ship Finance, Leasing and Maritime Capital Markets: Right of sponsors to inject equity to remedy a financial covenant breach.
Equity in arbitration X152. Maritime Arbitration and Dispute Resolution: General reference to fairness; only enforceable as decisional standard if parties expressly authorize ex aequo et bono determination.
Equity Story X49. Ship Finance, Leasing and Maritime Capital Markets: Narrative used by listed shipowners to attract public market investors.