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Glossary

Maritime glossary, terms beginning with R (page 5)

All maritime glossary terms that begin with the letter R, drawn from every subject section. 2097 entries.

Showing 250 of 2097 terms (page 5 of 9).

Replica Vessels F2. Maritime Culture, Heritage, Archaeology, Art and Museums
Modern reconstructions including Hokule'a, Hermione, and Sea Stallion from Glendalough.
Reply submissions X152. Maritime Arbitration and Dispute Resolution
Last round of written pleadings before the hearing, responsive to the rejoinder.
Repo Financing X49. Ship Finance, Leasing and Maritime Capital Markets
Repurchase agreement used in shipping bond financing by certain credit funds.
Report Distribution (SIRE) X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA
The OCIMF-controlled distribution of completed SIRE reports to entitled members and recipients.
Report of Inspection (ROI) X5. Marine Surveying and Inspection
PSC report issued at end of inspection.
Reportable event C1. Commercial shipping, chartering, economics and finance
Event triggering owner notification under a financing agreement.
Reportable Illness X41. Cruise Ship Public Health and VSP/USPH
Condition or threshold (such as the 2 percent or 3 percent AGE thresholds) triggering CDC notification.
Reportable Quantity X75. IMDG Code, Classes, Packing and Segregation
US national concept for marine pollutants triggering EPA reporting; not an IMDG threshold.
Reportable Quantity (RQ) X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers
A U.S. specific quantity threshold under 49 CFR 172.101 not part of IMDG but relevant for US-flag intermodal moves.
Reporting Format Template X86. Port Agency, Husbandry and Disbursement
Template for daily and end-of-call reports used by the agent.
Reporting line C2. Ship operations, crewing and technical management
Defined reporting structure in SMS.
Reporting Obligation X146. Port State Control Regimes, MoUs, and Inspection Systems
The obligation of certain ships to report ahead of arrival to the Paris MoU member State, including pre-arrival notification of MARPOL Annex I waste.
Reporting Obligation (OFAC) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes
U.S. persons must report blocked property to OFAC within 10 business days of blocking action.
Reporting Officer (PCASP) E1. Maritime security, geopolitics and risk
Onboard security team leader liaising with master.
Reporting Procedures X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers
General principles in MSC/Circ.1586 for reporting incidents involving dangerous goods at sea, in the IMDG Supplement.
Reporting Vessel X22. Piracy, Maritime Security and Armed Protection
Ship transmitting position and itinerary to UKMTO or MSCHOA under voluntary schemes.
Reposition X83. ISO Container Manufacturing and Leasing
Operational movement of an empty container from surplus to deficit area.
Reposition voyage X71. Shipbrokers and Brokerage Firms
Ballast leg negotiated through brokers to bring the vessel to the next loading area.
REpositioning Cable Permit X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
Authorization for relocating an existing in-service cable to accommodate new infrastructure.
Repositioning Cruise X164. Cruise Industry, Brands, Ship Classes, and Terminals
A one-way cruise moving a ship between seasonal cruise regions, typically transatlantic or Panama Canal crossings.
Repositioning hours X124. Dredging Industry and Reclamation Contractors
Off-hire time for dredger transit between projects.
Repositioning voyage C1. Commercial shipping, chartering, economics and finance
Ballast voyage to position the vessel for a fixture.
Repower X42. Offshore Wind Installation and Cable Lay
Replacement of older smaller turbines by larger units on the same site, increasingly considered for early European offshore wind farms.
Representative sample X47. Marine Fuel Quality and ISO 8217
Sample whose composition matches the parent batch, achieved by continuous drip sampling throughout delivery.
Reproducibility Limit X115. Marine Bunker and Cargo Surveying
Maximum acceptable difference between results from different laboratories on the same sample under ISO 4259.
Reproductive output X10. Marine Biology, Fisheries and Oceanography
Number or biomass of viable offspring produced per spawning unit.
Repsol X57. Ocean Energy Beyond Wind
Spanish integrated energy company involved in offshore CCS, wave energy, and hydrogen partnerships.
Repsol LNG Bunkering X110. LNG Bunkering Infrastructure and Vessels
Repsol LNG bunker supply operations in Iberia, including truck-to-ship deliveries at Algeciras and Cartagena.
Repsol Marine X61. Marine Lubricants and Cylinder Oils
Marine lubricants line of Repsol with cylinder, system, and auxiliary product ranges.
Repsol Marine Fuels X116. Global Bunker Anchorages, Hubs and Supply Infrastructure
Spanish supplier at Cartagena, Bilbao, Tarragona, and Las Palmas.
Repsol Vetting X40. Tanker Vetting, SIRE and VIQ
The vessel screening function of Repsol S.A.
Republic of the Marshall Islands Maritime Administrator X163. Marine Accident Investigation Agencies and Landmark Inquiries
Flag State authority of the Marshall Islands, with administration provided by International Registries Incorporated (IRI).
Repudiation X29. Ship Sale and Purchase, Management Contracts and Valuation
Wrongful refusal to perform contract, triggering default remedies.
Repudiatory Breach X51. Maritime Arbitration, Law and BIMCO Clauses
A breach evincing an intention no longer to be bound by the contract, entitling the innocent party to terminate.
Required CII X34. Decarbonization, Alternative Fuels and Carbon Pricing
Annual reference value calculated using ship-type-specific reference line and Z factor.
Required EEDI X112. IMO GHG Strategy, CII, EEXI and EU Maritime Regulation
Reference Line value reduced by the X reduction factor for the applicable EEDI phase.
Required Index R X54. Naval Architecture Software and IACS Rules
Probabilistic damage stability target attained index under SOLAS 2009.
Required Subdivision Index (R) X9. Cargo Securing, Lashing and Stability Vocabulary
Minimum probabilistic damage stability index under SOLAS Ch II-1/6.
Res Cogitans X72. Bunkering Hubs and Bunker Suppliers
UK Supreme Court 2016 decision in PST Energy 7 Shipping v O W Bunker Malta confirming bunker sales are commonly not subject to Sale of Goods Act passage of property.
Res judicata X152. Maritime Arbitration and Dispute Resolution
Doctrine preventing relitigation of issues already determined; binding awards have res judicata effect under Article III NYC.
Resampling X73. Marine Hydrography, Charting and ENC
The interpolation of bathymetric grids when converting between resolutions.
Rescue at high latitude X27. Polar Code, Ice Navigation and Polar Operations
Long response times due to limited SAR assets; key Polar Code driver.
Rescue boat X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary
Boat designed to rescue persons in distress and marshal survival craft, required by SOLAS III/14 (passenger) and III/26.3 (cargo).
Rescue Boat Coxswain X21. STCW Certificates, Crewing and Seafarer Welfare
Person in charge of a rescue boat, certificated under STCW VI/2.
Rescue boat drill C2. Ship operations, crewing and technical management
SOLAS drill at intervals not exceeding three months.
Rescue Chamber X91. Submarines and Submarine Cable Systems
Submarine compartment configured for crew survival pending rescue.
Rescue Co-ordination X80. Maritime Search and Rescue Coordination
Coordination of rescue assets directed by SMC.
Rescue Cradle X80. Maritime Search and Rescue Coordination
Lifting device used in helicopter rescue.
Rescue Strop X80. Maritime Search and Rescue Coordination
Helicopter rescue device for single survivor recovery.
Rescue Sub-Centre X80. Maritime Search and Rescue Coordination
Subordinate centre to an RCC, abbreviated RSC.
Rescue Time X133. Polar Research Vessels and Polar Code Regimes
Polar Code Operational Assessment metric, baseline 5 days.
Research arm X71. Shipbrokers and Brokerage Firms
Data and analytics division within a shipbroking firm, such as Clarksons Research.
Research Vessel E4. Cruise, offshore energy and auxiliary/specialised fleets
Oceanographic/fisheries research ship.
Research vessel (RV) B5. Ship Types and Individual Vessels
Oceanographic research ship.
Reservation A1. The IMO and the international regulatory framework
Unilateral statement modifying legal effect of treaty provisions; IMO conventions generally restrict reservations.
Reservation of Rights X4. Marine Insurance, P&I and Claims
insurer's notice that it investigates a claim without admitting cover.
Reservation of Rights Letter X51. Maritime Arbitration, Law and BIMCO Clauses
A communication preserving a party's rights pending investigation, common in casualty and cargo claims.
Reservation tax X42. Offshore Wind Installation and Cable Lay
Levy under certain seabed lease frameworks securing exclusive lease area development rights.
Reserve Account X49. Ship Finance, Leasing and Maritime Capital Markets
Cash account funded as additional credit support in a ship financing.
Reserve Buoyancy X9. Cargo Securing, Lashing and Stability Vocabulary
Volume above waterline contributing to stability at large heel.
Reserve buoyancy (icing) X27. Polar Code, Ice Navigation and Polar Operations
Stability calculations consider topside ice accretion.
Reserve Component (Naval) E2. Naval, defence and maritime law enforcement
Reservist forces (e.g., RN Reserve, USNR).
Reservoir pressure (CCS) X57. Ocean Energy Beyond Wind
Pressure regime in a CO2 storage formation that determines injection rates and containment limits.
Resident ROV X65. ROVs, AUVs, USVs and Marine Robotics
Subsea vehicle deployed and stored in a seabed docking station for long endurance operations without surface intervention.
Residual Cargo Plan X28. Ship Recycling and End-of-Life
Procedure to manage and discharge unpumpable cargo before recycling.
Residual Cargo Survey X5. Marine Surveying and Inspection
Measurement of OBQ and ROB in tanker surveys.
Residual chlorine X19. Engine Room Watchkeeping and UMS Operations
Disinfection parameter on potable water and treated sewage.
Residual Chlorine Drop X41. Cruise Ship Public Health and VSP/USPH
Sudden decrease in chlorine residual indicating possible contamination or excess organic load.
Residual Circulation D1. Physical and chemical oceanography and marine meteorology
Mean flow remaining after removing tidal and wind-driven variability.
Residual disinfection byproducts (DBP) X18. Ballast Water, Biofouling and Antifouling
Trihalomethanes, haloacetic acids, chlorate, and bromate produced by oxidative BWMS, regulated through GESAMP-BWWG approval.
Residual fuel B2. Marine Engineering
Heavy residual marine fuel grades RMG/RMK.
Residual fuel oil X47. Marine Fuel Quality and ISO 8217
Heavy refinery bottom stream forming the RM grades of ISO 8217.
Residual ice cover X27. Polar Code, Ice Navigation and Polar Operations
Ice remaining in marginal seas through summer in some Arctic basins.
Residual Marine Fuel X115. Marine Bunker and Cargo Surveying
Heavy fuel oil derived from refinery residues blended to meet ISO 8217 RM grade specifications.
Residual Oil Disposal X28. Ship Recycling and End-of-Life
Discharge of fuel and lubricating oil residues to certified facilities.
Residual Risk X48. Maritime Cybersecurity
Risk remaining after controls have been applied.
Residual stress measurement B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling
X-ray diffraction or hole-drilling.
Residuary resistance X162. Naval Architecture, Stability, Resistance, and Structural Design
Total resistance minus frictional resistance, used in classical Froude decomposition.
Residuary resistance (RR) B1. Naval Architecture
Resistance after subtracting frictional component.
Residue Separator X69. EGCS Scrubbers, SCR and Marine Air Emissions
Equipment isolating sludge from scrubber washwater for storage and disposal.
Resilience D3. Marine environmental science, pollution and conservation
Capacity of an ecosystem to absorb disturbance and recover.
Resilient Lady X64. Cruise Industry Operators, Brands and Ships
Virgin Voyages ship delivered in 2023.
Resilient mount B2. Marine Engineering
Vibration-isolating engine mount.
Resin X45. Marine Paints, Coatings and Antifouling
Polymeric binder forming the continuous phase of a paint film.
Resin Bonded Insulation X50. Ship Recycling, Demolition and Hong Kong Convention
A category of insulation materials sampled for asbestos and binder chemistries during IHM development.
Resin Solution Flammable X75. IMDG Code, Classes, Packing and Segregation
UN 1866, Class 3 with PG I, II or III.
Resin Solution Toxic X75. IMDG Code, Classes, Packing and Segregation
Falls under UN 1992 Class 3 with Class 6.1 subsidiary risk, depending on flash point and toxicity.
Resin Trap X63. Marine Auxiliary Machinery and Pumps
Strainer downstream of an ion exchanger to catch displaced resin beads.
Resistance coefficient (CT, CF, CR, CA) B1. Naval Architecture
Components in ITTC-78 procedure.
Resistance Decomposition X54. Naval Architecture Software and IACS Rules
Splitting of total resistance into frictional, wave-making, and form components.
Resistance Strain Gauge X96. Hull Integrity Monitoring and Strain Gauges
General term for any strain gauge based on change of electrical resistance under strain.
Resistance temperature detector X19. Engine Room Watchkeeping and UMS Operations
RTD, Pt100 or Pt1000 element common on engine thermocouples.
Resistance to Stacking Test X75. IMDG Code, Classes, Packing and Segregation
Test on IBCs and large packagings under IMDG 6.5 and 6.6.
Resistivity X100. Marine Cathodic Protection and Anodes
The intrinsic electrolyte property, opposite of conductivity, that influences anode-to-cathode circuit resistance.
Resolute X97. Polar Expedition Cruise and IAATO Operations
High Arctic Canadian community on Cornwallis Island used as a logistics hub for Northwest Passage voyages.
Resolution A.1119(30) X158. IMO Conventions, Protocols, Codes, and Resolutions
Assembly resolution of 6 December 2017 on Procedures for Port State Control.
Resolution A.1155(32) X158. IMO Conventions, Protocols, Codes, and Resolutions
Assembly resolution of 15 December 2021 on Procedures for Port State Control updating PSC guidance.
Resolution A.1156(32) X158. IMO Conventions, Protocols, Codes, and Resolutions
Assembly resolution of 15 December 2021 on Survey Guidelines under the Harmonized System of Survey and Certification.
Resolution A.682(17) X146. Port State Control Regimes, MoUs, and Inspection Systems
The IMO Regional Co-operation in the Control of Ships and Discharges resolution underpinning MoU formation.
Resolution A.890(21) X31. Helicopter Operations on Ships
IMO Principles of Safe Manning, references HLO certification requirements.
Resolution A.949(23) X13. Marine Salvage and Wreck Removal
IMO Guidelines on Places of Refuge for Ships in Need of Assistance.
Resolution MEPC.264(68) X27. Polar Code, Ice Navigation and Polar Operations
Polar Code environmental provisions.
Resolution MEPC.265(68) X27. Polar Code, Ice Navigation and Polar Operations
MARPOL amendments making environmental Polar Code mandatory.
Resolution MSC.1/Circ.1519 X27. Polar Code, Ice Navigation and Polar Operations
Guidance on Polar Code use of POLARIS.
Resolution MSC.385(94) X27. Polar Code, Ice Navigation and Polar Operations
Polar Code safety provisions.
Resolution MSC.386(94) X27. Polar Code, Ice Navigation and Polar Operations
SOLAS amendments adding Chapter XIV.
Resolution MSC.387(94) X27. Polar Code, Ice Navigation and Polar Operations
STCW amendments for V/3 polar training.
Resolution MSC.421(98) X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary
Adopted June 2017, entered into force 1 January 2020, harmonizing damage stability under SOLAS II-1.
Resolution Numbering A1. The IMO and the international regulatory framework
A.xxx(yy) where xxx is the consecutive number and yy is the Assembly session.
Resolution, HMS X39. Pre-1900 Maritime History
Royal Navy sloop in which Cook made his second and third Pacific voyages from 1772 to 1779.
Resolve Marine X13. Marine Salvage and Wreck Removal
US east coast and global salvage contractor and OPA 90 OSRO.
Resolve Marine Group X60. Marine Salvage and Wreck Removal
US marine salvage and emergency response company headquartered in Fort Lauderdale, Florida.
Resolve Maritime Academy X160. Maritime Academies, Universities, and STCW Certification
US maritime training academy in Fort Lauderdale Florida specializing in fire fighting and emergency response training for ship and shore personnel.
Resolve Recovery System X167. Major Salvage Companies, Wreck Removals, and Equipment
Branded modular salvage equipment package developed by Resolve Marine for OPA 90 response.
Reson SeaBat 7125 X65. ROVs, AUVs, USVs and Marine Robotics
Teledyne Reson multibeam echo sounder.
Reson SeaBat 7160 X65. ROVs, AUVs, USVs and Marine Robotics
Teledyne Reson high-power multibeam echo sounder for deep water bathymetry.
Reson SeaBat F50 X129. Hydrographic Offices, Survey Vessels and Marine Cartography
Compact Teledyne multibeam in the modern T-series lineage.
Reson SeaBat T20 X65. ROVs, AUVs, USVs and Marine Robotics
Teledyne Reson next generation multibeam echo sounder.
Reson SeaBat T20-P X129. Hydrographic Offices, Survey Vessels and Marine Cartography
Teledyne Reson portable multibeam used on smaller survey craft.
Reson SeaBat T50 X65. ROVs, AUVs, USVs and Marine Robotics
Teledyne Reson high-frequency multibeam echo sounder for ultra high-resolution survey.
Reson SeaBat T50-R X129. Hydrographic Offices, Survey Vessels and Marine Cartography
Teledyne Reson multibeam optimized for harbor survey and inspection.
Resonant Frequency Sensor X96. Hull Integrity Monitoring and Strain Gauges
Acoustic emission sensor designed to exhibit peak sensitivity at a specific frequency such as 150 or 300 kHz.
Resorts World Cruises X64. Cruise Industry Operators, Brands and Ships
Asian cruise operator launched in 2022, successor to Dream Cruises operations.
Resource Assessment Working Group X87. Fishing Vessels and Fisheries Management
Generic term for ICES, NAFO, and ICCAT scientific bodies producing stock advice.
Resource overlap conflict X57. Ocean Energy Beyond Wind
Potential interaction between marine renewable, CCS, fishing, and shipping interests in a given sea area.
Respiration heat X70. Reefer Containers and Cold Chain Shipping
Thermal load generated by living produce through metabolism, which the reefer unit must remove in addition to ambient heat ingress.
Respiration rate X26. Reefer Containers and Cold Chain Logistics
Volume of O2 consumed and CO2 produced per kg cargo per hour, temperature dependent.
Respond Function X48. Maritime Cybersecurity
NIST Cybersecurity Framework function focused on action regarding a detected cybersecurity incident.
Respondent X51. Maritime Arbitration, Law and BIMCO Clauses
The party against whom an arbitral reference is commenced.
Response Amplitude Operator X54. Naval Architecture Software and IACS Rules
RAO, transfer function relating wave amplitude to motion or load response.
Response Equipment Mobilization X60. Marine Salvage and Wreck Removal
Movement of pumps, generators, booms, and skimmers from depots to the casualty.
Response Group X126. Marine Oil Spill Response and OPRC Regimes
ICS Operations Section unit prosecuting source control, on-water recovery, dispersant operations, or shoreline cleanup.
Response Spectrum Analysis X54. Naval Architecture Software and IACS Rules
Linear seakeeping postprocessing technique combining RAOs with sea spectra.
Response Tier 1 X60. Marine Salvage and Wreck Removal
Spill response handled by the vessel or facility operator from on site resources.
Response Tier 2 X60. Marine Salvage and Wreck Removal
Spill response requiring regional industry or government assistance.
Response Tier 3 X60. Marine Salvage and Wreck Removal
Major spill response drawing on national or international OSRO resources.
Response Time (Operator Comments) X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA
The 14 calendar day OCIMF target for operator response submission after report issuance.
Response Vessel X13. Marine Salvage and Wreck Removal
Tug, OSV, or barge with dedicated salvage or pollution equipment.
Response Vessel Class X126. Marine Oil Spill Response and OPRC Regimes
ABS A1 Oil Recovery / Oil Spill Response Vessel classification with deck plan, slop tanks, foam-water monitor, and segregated cargo lines.
Responsibility Statement X75. IMDG Code, Classes, Packing and Segregation
Declaration by shipper on the DG form that the consignment is fully and accurately described and in proper condition for transport.
Responsible care C2. Ship operations, crewing and technical management
Chemical industry programme adopted by chemical shipowners.
Responsible Ship Recycling Standard (RSRS) X147. Ship Recycling, Hong Kong Convention, and Recycling Yards
See Maersk RSRS.
Rest hours X21. STCW Certificates, Crewing and Seafarer Welfare
STCW Regulation VIII/1 limits, monitored against MLC Regulation 2.3.
Rest Hours Record X102. Seafarer Welfare and Maritime Charities
Daily record of hours of work and rest required to demonstrate STCW and MLC compliance.
Rest Hours Recording X154. Maritime Welfare, Seafarer Charities, and MLC Rights
Mandatory under MLC 2.3 using ILO/IMO model format.
Restitution of Funds X86. Port Agency, Husbandry and Disbursement
Return of unused funds to principal at the end of the port call.
Restocking D4. Fisheries, aquaculture, blue economy and marine resources
Release of cultured juveniles to enhance wild stocks.
Restoration Bridge Simulator (Glasgow College) X144. Bridge Simulators, Engine Room Simulators, and Maritime Training Equipment
Engine room and bridge integration at City of Glasgow College.
Restoration Costs X60. Marine Salvage and Wreck Removal
Costs of returning a salvaged vessel to operational condition, separate from salvage award.
Restoration Survey X43. Marine Surveying and Warranty Surveying
An inspection following extensive damage repairs to verify restoration to class and original specification.
Restore Operations X48. Maritime Cybersecurity
Procedures to return shipboard systems to operational state after an incident.
Restoring Moment X9. Cargo Securing, Lashing and Stability Vocabulary
Synonym for righting moment.
Restow X15. Ports, Terminals and Stevedoring
container move within the same vessel.
Restraint of princes C1. Commercial shipping, chartering, economics and finance
Excepted peril for state intervention.
Restricted Acceptance X40. Tanker Vetting, SIRE and VIQ
A charterer outcome under which a vessel is acceptable only for limited trades, berths, or cargo grades.
Restricted Anchorage Notice X86. Port Agency, Husbandry and Disbursement
Notice of restrictions on anchorage areas affecting vessel movements.
Restricted Area X73. Marine Hydrography, Charting and ENC
ENC object RESARE describing an area with navigational restrictions.
Restricted Article X75. IMDG Code, Classes, Packing and Segregation
Aviation industry term equivalent in spirit to dangerous goods; in IMDG every Class 1 to 9 entry is regulated.
Restricted Class X5. Marine Surveying and Inspection
Class status with operational restrictions due to outstanding items.
Restricted information X12. Maritime Casualties and Investigation
Material protected from disclosure under the Casualty Code unless overriding public interest applies.
Restricted Materials Schedule X50. Ship Recycling, Demolition and Hong Kong Convention
The HKC Annex 1 schedule prohibiting or restricting asbestos, PCBs, ODS, AFS, and PFOS.
Restricted Operator Certificate X21. STCW Certificates, Crewing and Seafarer Welfare
ROC, STCW Regulation IV/2 GMDSS qualification limited to sea area A1.
Restricted Operator's Certificate X55. Marine Simulators, Training and Maritime Academies
GMDSS qualification covered by IMO Model Course 1.26 for operators within A1 sea areas.
Restricted Operator's Certificate (ROC) X160. Maritime Academies, Universities, and STCW Certification
STCW A-IV/2 limited GMDSS qualification valid for sea area A1 only.
Restricted party X6. Container, Intermodal and Trade Codes
Party on a sanctions list whose transactions are prohibited.
Restricted Payment X49. Ship Finance, Leasing and Maritime Capital Markets
Distribution to shareholders limited by covenants in shipping debt instruments.
Restricted records X163. Marine Accident Investigation Agencies and Landmark Inquiries
Material such as cockpit voice or VDR audio, medical records, witness statements, and analysis treated by the Casualty Investigation Code as warranting heightened protection.
Restricted Substances List X28. Ship Recycling and End-of-Life
Substances prohibited or restricted in new installations under HKC Appendix 1.
Restricted visibility X3. Ship Handling, Seamanship and Deck Vocabulary
Visibility reduced by fog, mist, rain, or other causes.
Restricted Visibility Procedure X86. Port Agency, Husbandry and Disbursement
Procedure for movements under reduced visibility, coordinated with VTS.
Restrictive Bottom Type X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
Seabed classification (e.g., very dense sand, cemented sediment, basalt outcrop) limiting cable burial methods.
Restructuring Support Agreement X49. Ship Finance, Leasing and Maritime Capital Markets
Agreement among stakeholders defining the terms of an out of court restructuring.
Resultant X16. Nautical Science, Navigation and COLREGs
Vector sum of two or more vectors.
Resumption X80. Maritime Search and Rescue Coordination
Restart of a suspended SAR operation upon new information.
Resurvey Interval D2. Hydrography, tides, waves, bathymetry and marine geology
Period after which an area should be re-surveyed under IHO standards.
Resuscitation Council guidelines X36. Shipboard Medical, Telemedicine and Seafarer Health
Reference protocols used in shipboard CPR training.
Retail clearance X15. Ports, Terminals and Stevedoring
container release after customs clearance.
Retain sample X2. Marine Bunker Fuels, Lubricants and Bunkering Operations
Sample retained by a party for future analysis or arbitration.
Retained Catch X87. Fishing Vessels and Fisheries Management
Portion of catch kept on board for landing, as opposed to discarded.
Retained sample X47. Marine Fuel Quality and ISO 8217
See MARPOL retained sample.
Retainer fee X32. Marine Pilotage and Pilot Operations
Pilotage charge for keeping a pilot at notice but not used.
Retainer, Pilotage X159. Marine Pilotage, Pilot Districts, and Pilots' Associations
Standby charge applied when a pilot is dispatched but the vessel cancels or delays.
Retention X4. Marine Insurance, P&I and Claims
amount of risk retained net for own account before reinsurance responds.
Retrieval line X32. Marine Pilotage and Pilot Operations
Light line attached to the lower spreader step of a pilot ladder to recover the ladder, optional under SOLAS V/23 and not to interfere with the ladder.
Retrocession X4. Marine Insurance, P&I and Claims
reinsurance of reinsurance.
Retrofit X34. Decarbonization, Alternative Fuels and Carbon Pricing
Modification of an existing ship to use an alternative fuel or wind-assist device.
Retrofit Survey X5. Marine Surveying and Inspection
Class attendance for installation of EGCS, BWMS, or other systems.
Return air X26. Reefer Containers and Cold Chain Logistics
Air drawn back to evaporator after passing across cargo; setpoint reference for chilled cargo.
Return Cable X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines
Conductor on bipolar HVDC submarine cable schemes used during monopole operation or in metallic-return mode.
Return Channel X68. Maritime Satcom and Telecommunications
Direction of transmission from vessel terminal through satellite to network hub.
Return depot X6. Container, Intermodal and Trade Codes
Empty-container yard nominated by the carrier for return after stripping.
Return Flow D1. Physical and chemical oceanography and marine meteorology
Compensating subsurface flow that closes a surface transport.
Return Period D5. Coastal processes, sea-level, cryosphere and ocean observation science
Average interval between events of a specified magnitude.
Returns for Lay-up X4. Marine Insurance, P&I and Claims
premium return under ITC Hulls 1/10/83 clause 22 for periods in approved lay-up.
Reuter X169. Container Terminal Cranes, Yard Equipment, and Lashing
Family of European reach stacker and empty handler operators historically supplied by Kalmar and Hyster, used as a generic operator reference.
REV Ocean X35. Yacht and Superyacht Industry
182.9 m Vard-built research expedition yacht for Kjell Inge Rokke.
Revalidation X21. STCW Certificates, Crewing and Seafarer Welfare
Periodic renewal of STCW certificates under Regulation I/11, generally every 5 years.
Revenue Cutter X39. Pre-1900 Maritime History
Armed government vessel used for the suppression of smuggling, the British service formalized in 1698.
Revenue Cutter Service X130. National Coast Guards and Cutter Fleets
Predecessor of USCG, established 1790 by Treasury Secretary Alexander Hamilton, merged with US Life-Saving Service 1915.
Revenue move X15. Ports, Terminals and Stevedoring
paid container move excluding shifts and restows.
Revenue Sharing Agreement, Cash Buyer X50. Ship Recycling, Demolition and Hong Kong Convention
A commercial arrangement where the cash buyer shares the upside or downside of yard pricing fluctuations.
Revenue Stamp Coordination X86. Port Agency, Husbandry and Disbursement
Coordination of revenue stamps on documents in jurisdictions that require them.
Revenue tonne mile C1. Commercial shipping, chartering, economics and finance
RTM, freight transport demand measure.
Rever Offshore X82. Saturation Diving and Offshore Diving Operations
Owner of former Bibby Offshore assets prior to Mermaid acquisition.
Reverification (Tier 2 Service Provider) X151. Maritime Sanctions, Dark Fleet, and Price Cap Regimes
A periodic refresh of attestations required under updated Treasury guidance.
Reverse Auction, Demolition X50. Ship Recycling, Demolition and Hong Kong Convention
A sale process where multiple buyers competitively bid down the spread for an end-of-life vessel.
Reverse circulation drilling X42. Offshore Wind Installation and Cable Lay
Drilling method used for socketed monopile installation in rock.
Reverse Engineering X48. Maritime Cybersecurity
Analysis of software or firmware to understand its behavior, used by both defenders and attackers.
Reverse engineering, design X58. Shipbuilding Yards and Construction
Yard process of developing production drawings from basic and detail design.
Reverse Estuarine Circulation D1. Physical and chemical oceanography and marine meteorology
Outflow at depth and inflow at surface in evaporation-dominated basins.
Reverse heading X16. Nautical Science, Navigation and COLREGs
Heading 180 degrees from the present heading.
Reverse intercept X16. Nautical Science, Navigation and COLREGs
Intercept when Ho is less than Hc; plotted away from the body.
Reverse Jet Scrubber X69. EGCS Scrubbers, SCR and Marine Air Emissions
Scrubber design in which liquid is injected against the gas flow for intensive contact.
Reverse Lay X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral
Rope construction where the strands and the yarns within them are twisted in opposite directions to balance torque.
Reverse logistics C3. Logistics, freight forwarding and multimodal trade
Returns and recycling logistics.
Reverse Logistics (Stores) X120. Marine Catering, Provisions and Ship Chandlers
Return of unused or damaged stores to chandler, handled through credit note process.
Reverse Logistics Project X104. Project Cargo Forwarders and Heavy Transport
Movement of decommissioned project equipment back from site for repair or disposal.
Reverse logistics, reefer X26. Reefer Containers and Cold Chain Logistics
Movement of empty reefer back to load port, often requiring depot inspection and PTI.
Reverse osmosis X19. Engine Room Watchkeeping and UMS Operations
Membrane fresh water generator producing potable water from sea water.
Reverse Osmosis (RO) X41. Cruise Ship Public Health and VSP/USPH
Pressure-driven membrane process used aboard ships to produce potable water from seawater.
Reverse Osmosis Survey X5. Marine Surveying and Inspection
Inspection of fresh water generators for STP and accommodation supply.
Reverse Osmosis Water Production X60. Marine Salvage and Wreck Removal
Onboard salvage utility for fresh water supply during extended operations.
Reverse Polarity D2. Hydrography, tides, waves, bathymetry and marine geology
Period when Earth's magnetic field was opposite to today, recorded in oceanic crust.
Reverse power relay X19. Engine Room Watchkeeping and UMS Operations
Generator protection tripping on reverse kW flow.
Reverse Profile X82. Saturation Diving and Offshore Diving Operations
Repetitive dive in which a deeper dive follows a shallower one.
Reverse Stern Drive (RSD) X30. Tug Operations and Harbour Towage
Damen-developed double-ended tug concept allowing efficient operation in either direction.
Reverse Stern Drive Tug X79. Tugs and Towage Industry
Damen RSD design featuring forward azimuth thrusters and a stern bow staple.
Reverse Tractor Tug X79. Tugs and Towage Industry
Tug operated stern-first when working, opposite of an ASD configuration.
Reverse-osmosis water X47. Marine Fuel Quality and ISO 8217
Treated freshwater used for cooling fuel coolers, not for fuel dilution.
Reverse-rotation propeller X38. Propellers, Stern Gear and Shaft Lines
Propeller designed for left-hand or right-hand rotation, paired in twin-screw installations to balance side forces.
Reversible Laytime X17. Chartering, Shipbroking and Freight Trading
Laytime aggregated across load and discharge, allowing time saved at one to offset time used at the other.
Revetment X103. US Inland Waterway Towing and Barge
A bank protection structure of articulated concrete mats or stone.
Review Period X40. Tanker Vetting, SIRE and VIQ
The interval during which an operator may respond to inspector observations before the report becomes read-only on SIRE.
REvil X25. Maritime Cybersecurity, OT and IT
Ransomware group also known as Sodinokibi, prominent through 2021.
REvil (Sodinokibi) X139. Maritime Cybersecurity, OT Threats and Standards
Ransomware syndicate disrupted by international action in 2022, implicated in earlier shipping logistics intrusions.
Revolution Wind X42. Offshore Wind Installation and Cable Lay
Joint Orsted and Eversource project (now Orsted and Global Infrastructure Partners) supplying Rhode Island and Connecticut.
Revolving credit facility C1. Commercial shipping, chartering, economics and finance
Ship finance facility allowing repeated drawdowns.
Reward (Article 12) X99. Marine Salvage Awards and SCOPIC
Salvage payment to which the salvor is entitled where a useful result is obtained.
Reweighing X155. Marine Surveying Practice and Cargo Inspection
The repeat measurement requested when initial measurements are challenged by one party.
REX (Rate of Exchange) Clause X17. Chartering, Shipbroking and Freight Trading
Hire payment clause specifying currency conversion mechanics.
Reykjavik X64. Cruise Industry Operators, Brands and Ships
Icelandic capital and cruise port serving North Atlantic itineraries.
Reymond Langton Design X35. Yacht and Superyacht Industry
UK yacht interior and exterior design studio.
Reynolds Number D1. Physical and chemical oceanography and marine meteorology
Dimensionless ratio of inertial to viscous forces.
Reynolds number (propeller) X38. Propellers, Stern Gear and Shaft Lines
Defined on chord length at 0.7R, used in open-water scaling.
Reynolds number (Re) B1. Naval Architecture
VL/nu, governing viscous similitude.
Reynolds Stress Model X54. Naval Architecture Software and IACS Rules
Anisotropic turbulence closure available in Fluent and STAR-CCM+.
Reynolds-Averaged Navier-Stokes (RANS) B1. Naval Architecture
Steady or unsteady turbulent flow solver.