Glossary

Maritime glossary, terms beginning with C (page 10)

All maritime glossary terms that begin with the letter C, drawn from every subject section. 4427 entries.

Showing 250 of 4427 terms (page 10 of 18).

Climate Reanalysis D1. Physical and chemical oceanography and marine meteorology: Reconstruction of past climate states by assimilating observations into models.
Climate Velocity X10. Marine Biology, Fisheries and Oceanography: Speed and direction at which species must move to track shifting isotherms.
Climb height X32. Marine Pilotage and Pilot Operations: Vertical distance from pilot boat deck to point of safe access on board the ship, governed by SOLAS V/23.
Climb of Nine X159. Marine Pilotage, Pilot Districts, and Pilots' Associations: Operational rule that pilots should not climb more than nine meters of pilot ladder, requiring a combination arrangement above that freeboard.
Clinical thermometer (digital) X36. Shipboard Medical, Telemedicine and Seafarer Health: Oral or tympanic device replacing mercury thermometers per IMO recommendation.
Clinical waste X36. Shipboard Medical, Telemedicine and Seafarer Health: Sharps and infectious waste segregated in yellow rigid container per MARPOL Annex V garbage rules.
Clip-on genset X26. Reefer Containers and Cold Chain Logistics: Diesel generator clamped to a container front for road or yard reefer power, typically 15 to 25 kVA, 460 V 3-phase.
Clipper F1. Maritime History: Mid-nineteenth century sharp-hulled fast sailing ship built for tea, opium, wool, and California trades.
Clipper Round the World Yacht Race X84. Yacht Racing, Regattas and Sailing Governance: An amateur-crewed circumnavigation race founded by Sir Robin Knox-Johnston in 1996.
ClipperData X101. Vessel Brokerage Software and Chartering Platforms: US-based crude oil flow analytics provider acquired by Kpler in 2021.
Close pack ice X27. Polar Code, Ice Navigation and Polar Operations: Sea ice concentration 7/10 to 8/10 with floes mostly in contact.
Close Reach X84. Yacht Racing, Regattas and Sailing Governance: A point of sail between close-hauled and a beam reach.
Close-hauled X3. Ship Handling, Seamanship and Deck Vocabulary: Sailing as near to the wind as possible.
Close-Up Survey X5. Marine Surveying and Inspection: Inspection where details of structure are within reach of the surveyor.
Close-Up Survey (CUS) X8. IACS, Class Rules and Class Notations: examination where structural details are within reach of the surveyor under ESP.
Closed area X10. Marine Biology, Fisheries and Oceanography: Defined zone where specified fishing activities are prohibited.
Closed Bell X82. Saturation Diving and Offshore Diving Operations: Pressurized SDC capable of transferring divers under pressure to the surface system.
Closed Bell Diver X82. Saturation Diving and Offshore Diving Operations: IMCA-qualified diver trained for lockout from a closed bell.
Closed bunkering X19. Engine Room Watchkeeping and UMS Operations: Bunkering procedure with vapor return preventing emission to atmosphere.
Closed bus tie B2. Marine Engineering: Switchboard operation with main busbar continuously closed.
Closed Chock X173. Mooring, Anchoring, OCIMF MEG4, and Equipment Numeral: Chock that fully encloses the rope opening to prevent the line jumping out under shock loading, mandatory at some lead positions per IACS UR A2.
Closed Circuit Rebreather X82. Saturation Diving and Offshore Diving Operations: Apparatus that recycles exhaled gas after scrubbing CO2.
Closed Container X83. ISO Container Manufacturing and Leasing: Generic term for fully enclosed dry freight containers.
Closed Containment Aquaculture D4. Fisheries, aquaculture, blue economy and marine resources: System isolating cultured species from the surrounding environment.
Closed Cooling System X63. Marine Auxiliary Machinery and Pumps: Fresh water cooling circuit isolated from seawater, treated with corrosion inhibitor.
Closed Cup Flash Point X75. IMDG Code, Classes, Packing and Segregation: Flash point measured in a closed test cup per ISO 13736 or ASTM D93, used for Class 3 PG assignment.
Closed Cup Flashpoint X172. IMDG Code: Classes, Divisions, Segregation, and Key UN Numbers: The flashpoint determined by Abel, Pensky-Martens, or Tag closed-cup apparatus per 2.3.3.
Closed Cutting Method X50. Ship Recycling, Demolition and Hong Kong Convention: A dismantling approach where blocks are removed in covered or enclosed environments to control emissions, used at some European yards.
Closed Diving Bell X82. Saturation Diving and Offshore Diving Operations: Synonym for closed bell, distinguishing from open wet bells.
Closed Gauging X115. Marine Bunker and Cargo Surveying: Tank measurement using a portable closed instrument inserted through a vapor lock, retaining tank pressure and reducing gas exposure.
Closed investigation X12. Maritime Casualties and Investigation: Inquiry whose final report has been issued and is no longer active.
Closed Loading X135. Chemical Tanker Operators and IBC Code Cargoes: Cargo intake with the ullage hatch shut and vapor return connected, mandatory for benzene, MTBE and other toxic or carcinogenic Category Y cargoes.
Closed Loading Operation X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: The procedure verified during SIRE inspection to confirm no vapor release to atmosphere during loading.
Closed Loop Test X109. Maritime Autonomous Surface Ships and MASS Code: A simulation method in which the autonomy code reacts to a simulated environment in real time to validate behavior before sea trials.
Closed Observation (SIRE) X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: An observation that the operator has responded to and the inspector or OCIMF has accepted, ending the open observation life cycle.
Closed Registry X98. Ship Registries and Flag States: National registry that restricts registration to vessels owned by nationals or domestically controlled companies.
Closed Sampling X115. Marine Bunker and Cargo Surveying: Sample drawing technique using a portable closed sampler through a vapor lock without venting tank atmosphere to deck.
Closed Season X87. Fishing Vessels and Fisheries Management: Temporal fishery management measure prohibiting fishing during defined periods.
Closed User Group X68. Maritime Satcom and Telecommunications: Private dialing or addressing arrangement restricting communications to a defined set of terminals.
Closed-Circuit Potential X100. Marine Cathodic Protection and Anodes: The operating potential of an anode when delivering current to a cathode through the electrolyte.
Closed-cycle OTEC X57. Ocean Energy Beyond Wind: Ocean thermal energy conversion configuration using a working fluid such as ammonia in a Rankine cycle driven by warm surface and cold deep seawater.
Closed-Loop Recycling X28. Ship Recycling and End-of-Life: Reuse of recovered steel within the steel industry via re-rolling or melting.
Closed-loop scrubber X24. Cruise, Passenger Ship and Ferry Operations: Exhaust gas cleaning system using a recirculated alkaline wash with onboard residue handling.
Closeout Memo X40. Tanker Vetting, SIRE and VIQ: A written response from the operator to each SIRE observation, lodged on the OCIMF platform within the prescribed reply window.
Closest Point of Approach X109. Maritime Autonomous Surface Ships and MASS Code: The radar plotting aid output indicating minimum predicted range to a target, used by autonomy collision avoidance logic.
Closest point of approach (CPA) X16. Nautical Science, Navigation and COLREGs: Minimum range between own ship and a target.
Closing X29. Ship Sale and Purchase, Management Contracts and Valuation: Simultaneous payment, delivery, and document exchange under MoA.
Closing Documents X29. Ship Sale and Purchase, Management Contracts and Valuation: Bundle including Bill of Sale, Protocol, class certificates, and tax declarations.
Closing meeting X71. Shipbrokers and Brokerage Firms: S&P signing meeting where MOA performance, payment, and protocol of delivery are executed.
Closing Memorandum X29. Ship Sale and Purchase, Management Contracts and Valuation: Schedule of documents exchanged at completion.
Closing Position List X161. Shipbroking, Freight Derivatives, and Baltic Indices: Periodic broker circular listing vessels open for charter in defined ranges and dates.
Closing report X7. Flag State, Port State Control and Detention Vocabulary: Final report of a PSC inspection delivered to the master listing deficiencies and action codes.
Closing speed B3. Nautical Science: Rate of decrease of range to target.
Closing Ullage X155. Marine Surveying Practice and Cargo Inspection: The ullage measurement taken immediately after loading or discharge is completed, used with opening ullage to determine quantity transferred.
Closure X75. IMDG Code, Classes, Packing and Segregation: Component closing the opening of a packaging, critical to IMDG packaging integrity tests.
Closure (Fishery) D4. Fisheries, aquaculture, blue economy and marine resources: Time-area closure to protect spawning or recovery.
Closure dam X175. Port Engineering, Dredging, Breakwaters, and Quays: Temporary or permanent earth or rock dam used to close off a tidal opening as part of reclamation or coastal works.
Closure of Detention X66. Port State Control and Regional MOUs: Formal lifting of a detention order once deficiencies are rectified to PSC satisfaction.
Cloud base X16. Nautical Science, Navigation and COLREGs: Height of the lowest cloud layer above the surface.
Cloud cavitation X38. Propellers, Stern Gear and Shaft Lines: Bubbly downstream collapse region trailing a sheet cavity, principal driver of erosion.
Cloud point X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Temperature at which wax crystals first appear in a distillate, per ASTM D2500.
Cloud Storage X139. Maritime Cybersecurity, OT Threats and Standards: Off-vessel data repository introducing new attack surface, especially when used for chart updates and crew records.
Cloud-Native Vessel Performance Platform E3. Technology, digitalization and smart shipping: SaaS performance/emissions analytics.
Clove hitch X3. Ship Handling, Seamanship and Deck Vocabulary: Knot for securing a line to a spar or post.
CLT propeller X162. Naval Architecture, Stability, Resistance, and Structural Design: Contracted and Loaded Tip propeller patented by Sistemar of Spain with end-plates that suppress tip vortex.
Club Call X4. Marine Insurance, P&I and Claims: see Supplementary Call; mutual contribution from members.
Club Correspondent X4. Marine Insurance, P&I and Claims: independent local representative appointed by a P&I club to assist members in handling incidents in a port.
Club Marine Pittwater to Coffs F4. Recreational Boating, Yachting and Sport: Australian offshore race.
Clump Weight X14. Offshore Oil and Gas Marine Operations: Hanging weight on mooring or riser to depress catenary shape.
Cluster X15. Ports, Terminals and Stevedoring: group of berths under shared management at large terminals.
Cluster of Risks X108. Marine Insurance and P&I Clubs: A grouping of related exposures considered together in underwriting, such as Gulf transits or laid-up tonnage.
CLV X153. Offshore Drilling Rigs, FPSOs, and Offshore Vessels: Cable Lay Vessel used to install submarine power and telecommunications cables, often with carousel and tensioner systems.
CLV-ER X122. Submarine Cable Laying, Repair Vessels and Operators: A CLV additionally classed Equipped for Repair, retaining repeater handling and jointing capability after a primary lay role.
Clyde & Co X51. Maritime Arbitration, Law and BIMCO Clauses: An international law firm with a substantial admiralty, shipping, and insurance practice.
Clyde & Co LLP X157. Marine Loss Adjusters, GA Practice, and Casualty Firms: Global law firm headquartered in London with one of the largest marine and shipping practices worldwide.
Clyde Bunker Service X72. Bunkering Hubs and Bunker Suppliers: Bunker supply at Greenock Ocean Terminal and the upper Clyde by Petroineos and Certas Energy.
Clydebank Declaration for Green Shipping Corridors X34. Decarbonization, Alternative Fuels and Carbon Pricing: Statement signed at COP26 in 2021 by 22 nations to establish at least six zero-emission shipping corridors by 2025.
CMA CGM X6. Container, Intermodal and Trade Codes: French container shipping line, third-largest globally.
CMA CGM 2020 X48. Maritime Cybersecurity: September 2020 ransomware attack, attributed in open reporting to Ragnar Locker, that disrupted CMA CGM's external booking and tracking systems.
CMA CGM Academy X121. Maritime Education, Academies and Universities: Industry training centre in Marseille, France, founded 2010 by CMA CGM, focused on shipping operations and digital transformation.
CMA CGM Agency Network X86. Port Agency, Husbandry and Disbursement: In-house agency offices of CMA CGM at the majority of ports it calls.
CMA CGM Attack X139. Maritime Cybersecurity, OT Threats and Standards: September 2020 Ragnar Locker ransomware incident disrupting the French carrier's booking systems for several weeks.
CMA CGM Biofuel Bunkers X111. Methanol, Ammonia and Alternative Marine Fuels: Container line program initiating marine biofuel bunkering from 2019 with scaled-up volumes from 2022.
CMA CGM Bunker Desk X72. Bunkering Hubs and Bunker Suppliers: In house procurement function of CMA CGM responsible for procuring fuel for the line's container fleet.
CMA CGM Bunker Trial X116. Global Bunker Anchorages, Hubs and Supply Infrastructure: 2023 voyage of CMA CGM White Shark using B30 biofuel ex-Singapore, jointly arranged with Chevron and MPA.
CMA CGM ColdHub X136. Reefer Vessels and Cool Chain Operators: CMA CGM portal launched in 2019 for booking, monitoring, and managing reefer container shipments worldwide.
CMA CGM Container Fleet X83. ISO Container Manufacturing and Leasing: Owned-container pool of the French shipping line operating under the GLDU and CMAU prefixes.
CMA CGM CSAV Reefer X136. Reefer Vessels and Cool Chain Operators: Combined reefer franchise of CMA CGM and the integrated CSAV reefer brand, marketed through the CMA CGM Reefer organization.
CMA CGM EcoLine X101. Vessel Brokerage Software and Chartering Platforms: Booking and slow-steaming product line offered by the French container carrier CMA CGM.
CMA CGM Global Procurement Forum X119. Maritime Conferences, Trade Shows and Awards: Annual supplier gathering held in Marseille.
CMA CGM Jacques Saade X110. LNG Bunkering Infrastructure and Vessels: 23,000 TEU LNG dual-fuel ultra-large container ship delivered in 2020, the lead vessel of CMA CGM's LNG-fueled mega-boxship series.
CMA CGM LNG Fleet X110. LNG Bunkering Infrastructure and Vessels: Container shipping fleet of LNG dual-fuel vessels operated by CMA CGM, initially ordered in a series including Jacques Saade and sister ships.
CMA CGM Logistics X104. Project Cargo Forwarders and Heavy Transport: Logistics arm of the CMA CGM group encompassing CEVA and former Bollore Logistics.
CMA CGM Marco Polo class X76. Stevedoring, Lashing and Cargo Securing: Large containership family carrying about 16,000 TEU, illustrating the lashing loads on ultra-large designs.
CMA CGM Megamax-24 X169. Container Terminal Cranes, Yard Equipment, and Lashing: Class of 24,000 TEU container vessels requiring Megamax-24 STS cranes with outreach beyond 24 container rows.
CMA CGM Methanol Container Ships X111. Methanol, Ammonia and Alternative Marine Fuels: Series of 9,000 TEU and 13,000 TEU methanol dual-fuel container ships ordered by CMA CGM.
CMA CGM Pelleas X110. LNG Bunkering Infrastructure and Vessels: 18,600 m3 LNG bunker vessel operated under joint arrangements involving TotalEnergies Marine Fuels, Pavilion Energy, and CMA CGM from 2022.
CMA CGM Ragnar Locker Incident September 2020 X25. Maritime Cybersecurity, OT and IT: Ransomware attack on the French liner operator that disrupted booking systems.
CMA CGM Ransomware (September 2020) X148. Maritime Cybersecurity, IACS Cyber Rules, and Incidents: The Ragnar Locker ransomware attack that disabled CMA CGM booking systems for roughly two weeks beginning 28 September 2020.
CMA CGM Ransomware 2020 X107. Maritime Cybersecurity and OT Security: Ragnar Locker ransomware incident in September 2020 disrupting CMA CGM external booking systems.
CMA CGM Recycling Policy X147. Ship Recycling, Hong Kong Convention, and Recycling Yards: The French container line's pledge to recycle owned vessels at EU-listed or Hong Kong Convention compliant yards.
CMA CGM Reefer Live X70. Reefer Containers and Cold Chain Shipping: Reefer telematics service operated by CMA CGM offering remote monitoring of refrigerated containers in transit.
CMA CGM REEFLEX X26. Reefer Containers and Cold Chain Logistics: CMA CGM IoT reefer monitoring service for live data and exception alerts.
CMA CGM Terminal Link X46. Container Terminal Operations: The container terminal investment subsidiary of the CMA CGM Group, holding stakes in terminals across the Mediterranean, Asia, and the Americas.
CMA Commodore Award X119. Maritime Conferences, Trade Shows and Awards: Connecticut Maritime Association lifetime recognition presented at CMA Shipping.
CMA Shipping X119. Maritime Conferences, Trade Shows and Awards: Annual Connecticut Maritime Association conference held in Stamford each March since 1985.
CMA Singapore X114. Maritime Arbitration and Shipping Law Firms: Companies of CMA CGM whose Singapore contracts frequently invoke SCMA arbitration.
CMAC (China Maritime Arbitration Commission) X152. Maritime Arbitration and Dispute Resolution: Beijing-headquartered specialist maritime arbitration body, with sub-commissions in Shanghai, Tianjin, Hong Kong, and elsewhere.
CMAC Rules 2021 X152. Maritime Arbitration and Dispute Resolution: Current procedural rules of the China Maritime Arbitration Commission governing maritime, logistics, and shipbuilding disputes.
CMB Financial Leasing X29. Ship Sale and Purchase, Management Contracts and Valuation: China Merchants Bank leasing subsidiary, ship finance provider.
CMB.TECH X105. Offshore Wind Farm Installation and Vessels: Belgian shipowner subsidiary of Compagnie Maritime Belge developing hydrogen-powered vessels including the Hydrocat 48 CTV.
CMC X80. Maritime Search and Rescue Coordination: Communications Master Centre within larger national coast guard systems.
CMD China X90. Marine Engine Specific Model Enumeration: Chinese marine diesel builder producing licensed two-stroke and four-stroke engines for domestic shipyards.
CME Group X161. Shipbroking, Freight Derivatives, and Baltic Indices: Chicago-based exchange that lists cleared dry FFA and tanker FFA contracts following the closure of NASDAQ Commodities freight book.
CMF X22. Piracy, Maritime Security and Armed Protection: Combined Maritime Forces, a 46 nation naval partnership headquartered in Bahrain.
CMF CTF-150 X22. Piracy, Maritime Security and Armed Protection: Maritime security and counter terrorism task force covering the Gulf of Oman and Indian Ocean.
CMF CTF-151 X22. Piracy, Maritime Security and Armed Protection: Counter piracy task force established January 2009, focused on the Gulf of Aden and Somali Basin.
CMF CTF-152 X22. Piracy, Maritime Security and Armed Protection: Persian Gulf maritime security task force.
CMF CTF-153 X22. Piracy, Maritime Security and Armed Protection: Red Sea maritime security task force, established April 2022.
CMF CTF-154 X22. Piracy, Maritime Security and Armed Protection: Maritime security training task force, established May 2023.
CMI A5. Maritime Law, private and commercial: Comite Maritime International, NGO contributor to maritime-law unification.
CMI (Comite Maritime International) X143. Landmark Maritime Law Cases and Doctrines: International association of national maritime law associations founded in Antwerp in 1897.
CMI Arbitration Rules X114. Maritime Arbitration and Shipping Law Firms: Rules drafted by the CMI to provide a recognized arbitration framework for shipping disputes.
CMI Rules for Electronic Bills of Lading 1990 X51. Maritime Arbitration, Law and BIMCO Clauses: The voluntary protocol providing a contractual framework for paperless bills of lading.
CMI/BIMCO Cyber Security Clause for Time Charters 2019 X51. Maritime Arbitration, Law and BIMCO Clauses: The joint clause allocating responsibility for cyber incidents under time charters.
CMID X126. Marine Oil Spill Response and OPRC Regimes: Common Marine Inspection Document used to vet response vessels under IMCA standards.
CMID (Common Marine Inspection Document) X150. Tanker Vetting: OCIMF SIRE, CDI, RightShip, and TMSA: The IMCA inspection scheme for offshore vessels, distinct from but conceptually adjacent to OVIQ.
CMM (Crew Mess) X35. Yacht and Superyacht Industry: Onboard mess area for crew meals.
CMN Yachts X125. Superyacht Industry, Builders and Brokers: Cherbourg, France builder of the Cloudbreak and Slipstream class motoryachts before transition to defense work.
CMNI X166. Inland Waterways, Ferries, RoRo, and Short Sea Shipping: See Budapest Convention.
CMOU X66. Port State Control and Regional MOUs: Acronym for Caribbean MOU.
CMP X45. Marine Paints, Coatings and Antifouling: Industry abbreviation for Chugoku Marine Paints, Ltd.
CMP Bioclean X45. Marine Paints, Coatings and Antifouling: CMP biocide-free silicone foul-release coating range.
CMP Sea Grandprix X45. Marine Paints, Coatings and Antifouling: Self-polishing copolymer antifouling product line from Chugoku Marine Paints.
CMP Sea Premier X45. Marine Paints, Coatings and Antifouling: CMP marine antifouling product family for ocean-going vessels.
CMR X6. Container, Intermodal and Trade Codes: Convention on the Contract for the International Carriage of Goods by Road.
CMRP (Center of Motion Reference Point) X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Survey vessel reference point at which all sensor offsets are referenced, typically near the keel below the inertial unit.
CMS C2. Ship operations, crewing and technical management: Continuous machinery survey, alternative class survey regime.
CMU X15. Ports, Terminals and Stevedoring: Concrete Masonry Unit used in lightweight quay walls.
CMVP X25. Maritime Cybersecurity, OT and IT: NIST and CCCS Cryptographic Module Validation Program; current Go FIPS module is CMVP certificate 5247.
CN code X6. Container, Intermodal and Trade Codes: Combined Nomenclature, EU 8-digit tariff code extending the HS.
CN Tower Effect X54. Naval Architecture Software and IACS Rules: Informal term for downwash interaction between superstructure blocks evaluated in wind CFD studies.
CNA Marine X145. P&I Clubs, War Risk Insurers, and Marine Insurance Markets: US insurer underwriting hull, cargo, and marine liability.
cNav 2050 X89. ECDIS and Bridge Equipment Makers: Kongsberg differential GNSS receiver providing decimeter level positioning for DP and survey applications.
cNav 3050 X89. ECDIS and Bridge Equipment Makers: Kongsberg precise point positioning GNSS receiver for offshore work with global L band corrections.
CNB X125. Superyacht Industry, Builders and Brokers: Bordeaux, France carbon sailing yacht builder owned by Beneteau Group, including the 95 ft and 76 ft semi-custom range.
CNB Yacht Builders X156. Superyacht Industry, Builders, and Yacht Charter Market: French builder at Bordeaux, part of the Beneteau group, producing high performance bluewater sailing yachts.
CNC plasma cutter X58. Shipbuilding Yards and Construction: Computer-controlled gantry cutting steel plates to nested geometry using a plasma arc.
CNFF (Chu Kong Passenger Transport) X132. High-Speed Craft, Hydrofoils and Ferry Operators: Hong Kong to Pearl River Delta high-speed operator, formerly using a fleet of Boeing 929 Jetfoils.
CNL Argentario X125. Superyacht Industry, Builders and Brokers: Italian builder of classic style spirit of tradition motoryachts.
CNN X109. Maritime Autonomous Surface Ships and MASS Code: A convolutional neural network architecture commonly applied to marine vessel detection in MASS computer vision pipelines.
CO X6. Container, Intermodal and Trade Codes: Certificate of Origin, document declaring the country of manufacture.
Co-altitude B3. Nautical Science: Complement of celestial altitude.
Co-amoxiclav X36. Shipboard Medical, Telemedicine and Seafarer Health: See Amoxicillin-clavulanate.
Co-channel Interference X68. Maritime Satcom and Telecommunications: Distortion from another carrier sharing the same frequency on an adjacent beam or satellite.
Co-Insurance X53. Marine Insurance, P&I and Hull Clauses: An arrangement in which several insurers each subscribe to a portion of the risk on identical terms, common in Lloyd's slip placements.
Co-Located Armoury X22. Piracy, Maritime Security and Armed Protection: Onshore facility holding PCASP weapons between transits, distinct from a floating armoury.
Co-NAVIGATIO X73. Marine Hydrography, Charting and ENC: An ENC distribution initiative coordinated through Primar.
Co-range Line D2. Hydrography, tides, waves, bathymetry and marine geology: Line of equal tidal range.
Co-rotating propellers X38. Propellers, Stern Gear and Shaft Lines: Two propellers on parallel shafts turning in the same direction, distinguished from contra-rotating arrangements.
Co-tidal Chart X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Chart showing lines of equal high-water phase, supporting tidal prediction in shallow seas.
Co-tidal Line D2. Hydrography, tides, waves, bathymetry and marine geology: Line connecting points where high tide occurs simultaneously.
CO2 capture rate X34. Decarbonization, Alternative Fuels and Carbon Pricing: Share of CO2 in exhaust captured by onboard CCS, typically targeted at 30 to 90 percent.
CO2 Equivalent A3. Marine environmental legislation: MARPOL and its annexes: Used in well-to-wake GHG intensity calculation under MARPOL Annex VI Chapter 5.
CO2 Equivalent (CO2e) D6. Decarbonization, emissions and alternative fuels: Unit normalizing greenhouse gases by their global warming potential.
CO2 fire suppression X59. Offshore Wind O&M, CTVs and SOVs: Fixed fire fighting system in turbine nacelles, charged with carbon dioxide and inhibited during technician occupancy.
CO2 fixed fire-extinguishing system X170. SOLAS 1974 Convention: Chapter-by-Chapter Glossary: Total flooding gaseous system regulated under FSS Code Chapter 5 and SOLAS II-2/10, with quantity equal to 40% of gross volume of largest protected machinery space.
CO2 fixed system (Polar Code) X27. Polar Code, Ice Navigation and Polar Operations: Fire-fighting medium must remain effective at the Polar Service Temperature.
CO2 injection well X57. Ocean Energy Beyond Wind: Subsea or platform-based well used to inject dense-phase CO2 into deep saline aquifers or depleted hydrocarbon reservoirs.
CO2 laser cutting B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: Plate cutting method in shipyard.
CO2 Scrubber X82. Saturation Diving and Offshore Diving Operations: Canister using soda lime or lithium hydroxide to remove carbon dioxide.
CO2 shuttle tanker X57. Ocean Energy Beyond Wind: Operational term for the CO2 carriers serving Northern Lights and similar offshore storage hubs.
CO2 Slip D6. Decarbonization, emissions and alternative fuels: Reduced carbon efficiency from incomplete combustion in dual-fuel engines.
CO2 Smothering X1. Cargo Science, Commodities and Cargo Care: Fixed fire-fighting system in cargo holds and machinery spaces.
CO2 specification X57. Ocean Energy Beyond Wind: Composition limits on impurities such as water and sulfur in CO2 streams accepted by offshore storage operators.
CO2/SO2 Ratio X69. EGCS Scrubbers, SCR and Marine Air Emissions: Emission ratio used under MEPC.340(77) as an equivalent indicator of fuel sulfur compliance.
CO2/SO2 Ratio 13:1 X69. EGCS Scrubbers, SCR and Marine Air Emissions: Ratio limit equivalent to 1.50% fuel sulfur content.
CO2/SO2 Ratio 21.7:1 X69. EGCS Scrubbers, SCR and Marine Air Emissions: Ratio limit equivalent to 1.00% fuel sulfur content.
CO2/SO2 Ratio 4.3:1 X69. EGCS Scrubbers, SCR and Marine Air Emissions: Ratio limit equivalent to 3.00% and 3.50% fuel sulfur content.
CO2/SO2 Ratio 40:1 X69. EGCS Scrubbers, SCR and Marine Air Emissions: Ratio limit equivalent to 0.50% fuel sulfur content under the global cap.
CO2eq (CO2 equivalent) X34. Decarbonization, Alternative Fuels and Carbon Pricing: Common unit combining gases by GWP for aggregate reporting.
CoA C1. Commercial shipping, chartering, economics and finance: Contract of affreightment.
COA (Contract of Affreightment) X17. Chartering, Shipbroking and Freight Trading: Contract for the carriage of multiple cargo parcels over a period without nominating a specific vessel.
COA Tonnage X161. Shipbroking, Freight Derivatives, and Baltic Indices: Total contractual cargo volume committed under a contract of affreightment, typically expressed in metric tons per year with tolerance.
Coal Barge X103. US Inland Waterway Towing and Barge: An open hopper barge carrying steam or metallurgical coal on the Ohio and Mississippi systems.
Coal Cargo Care X1. Cargo Science, Commodities and Cargo Care: Ventilation by surface only after methane check; monitor CO, CH4, O2, temperature.
Coal Cargo Survey X115. Marine Bunker and Cargo Surveying: Draft survey and quality sampling of coal cargoes, with attention to moisture, calorific value, and self-heating risk under IMSBC.
Coal Slag X88. Marine Surface Preparation and Coatings Application: Disposable angular abrasive byproduct of coal-fired power generation marketed under names including Black Beauty.
Coal tar epoxy X45. Marine Paints, Coatings and Antifouling: Historic tank lining combining epoxy with coal tar pitch; restricted today due to PAH content and tank coating PSPC requirements.
Coal Trade X39. Pre-1900 Maritime History: The east coast English collier traffic from the Tyne and Wear that trained generations of British seamen.
Coal Trade Routes X44. Shipping Indices, FFAs and Freight Markets: Specific Baltic route definitions for thermal and coking coal flows including C7 Atlantic and the Australia-China Capesize segment.
Coal, Bituminous X1. Cargo Science, Commodities and Cargo Care: IMSBC Group A and B (self-heating, may emit methane).
Coal, Brown (Lignite) X1. Cargo Science, Commodities and Cargo Care: High self-heating risk; specific schedules.
Coalescer X2. Marine Bunker Fuels, Lubricants and Bunkering Operations: Filter element that merges fine water droplets for separation.
Coalition Task Force (CTF) 150 E1. Maritime security, geopolitics and risk: CMF counter-terrorism task force in Gulf of Aden/Arabian Sea.
Coaming X3. Ship Handling, Seamanship and Deck Vocabulary: Raised border around a hatch to keep out water.
Coast Earth Station X80. Maritime Search and Rescue Coordination: Land-based gateway connecting maritime satellite distress alerts to terrestrial networks.
Coast Guard E2. Naval, defence and maritime law enforcement: Civil maritime law-enforcement service with security role.
Coast Guard Air Station Borinquen X130. National Coast Guards and Cutter Fleets: USCG air station Aguadilla, Puerto Rico, operating MH-65 Dolphin and HC-144.
Coast Guard Air Station Cape Cod X130. National Coast Guards and Cutter Fleets: USCG air station Bourne, Massachusetts, with HC-144 Ocean Sentry and MH-60T Jayhawk.
Coast Guard Air Station Clearwater X130. National Coast Guards and Cutter Fleets: Largest USCG air station, operating HC-130J and MH-60T, Florida.
Coast Guard Air Station Elizabeth City X130. National Coast Guards and Cutter Fleets: USCG air station North Carolina, home to HC-130J training and Aviation Logistics Center.
Coast Guard Auxiliary X80. Maritime Search and Rescue Coordination: US Coast Guard volunteer organization founded 1939.
Coast Guard board of inquiry X12. Maritime Casualties and Investigation: US Coast Guard Marine Board of Investigation under 46 CFR Part 4, the highest level of USCG investigation.
Coast Guard Cutter X-Ray X130. National Coast Guards and Cutter Fleets: USCG radio code used by Pacific Strike Team for pollution response.
Coast Guard Investigative Service X130. National Coast Guards and Cutter Fleets: Plainclothes federal law enforcement arm of USCG, headquartered Washington, DC.
Coast Guard NOC X28. Ship Recycling and End-of-Life: No-Objection Certificate from the Indian Coast Guard before beaching, addressing pollution preparedness.
Coast Guard Yard X130. National Coast Guards and Cutter Fleets: USCG industrial facility Baltimore, Maryland, performs depot-level maintenance on cutters since 1899.
Coast Pilot (NOAA) X129. Hydrographic Offices, Survey Vessels and Marine Cartography: Nine-volume NOAA publication describing US coastal navigation features, complementing the chart series.
Coast Pilot (US) X16. Nautical Science, Navigation and COLREGs: NOAA equivalent of Sailing Directions covering US waters.
Coastal X73. Marine Hydrography, Charting and ENC: Usage band 3 in the ENC scale hierarchy, intended for coastwise navigation.
Coastal broker X71. Shipbrokers and Brokerage Firms: Broker focused on short-sea or cabotage trades.
Coastal Bunkering X115. Marine Bunker and Cargo Surveying: Fuel supply operation conducted while a vessel is at anchor or alongside in coastal waters rather than at a terminal berth.
Coastal Celebration X85. Ferries, Ro-Pax Operators and Routes: BC Ferries Coastal class ro-pax built 2008.
Coastal Class society B4. Shipbuilding, Materials, Sea Trials, Retrofits and Recycling: Domestic recognized organization.
Coastal Cod (Norwegian) X87. Fishing Vessels and Fisheries Management: Inshore Atlantic cod stock managed separately from Northeast Arctic cod under ICES advice.
Coastal Cruising F4. Recreational Boating, Yachting and Sport: Cruising kept within day-sail of shore.
Coastal current C4. Ports, terminals and coastal/marine civil engineering: Long shore current affecting port operations.
Coastal Express X64. Cruise Industry Operators, Brands and Ships: Hurtigruten branded passenger and freight service along the Norwegian coast since 1893.
Coastal Inspiration X85. Ferries, Ro-Pax Operators and Routes: BC Ferries Coastal class ro-pax built 2008.
Coastal management plan C4. Ports, terminals and coastal/marine civil engineering: Plan for coastal zone management.
Coastal mine X77. Naval Mine Warfare and Mine Countermeasures: A sea mine intended for use in shallow approaches, harbors, and chokepoints.
Coastal navigation X16. Nautical Science, Navigation and COLREGs: Position-fixing within sight of land using visual and radar methods.
Coastal Patrol Boat (PB) E2. Naval, defence and maritime law enforcement: Small constabulary craft.
Coastal Petroleum Pilipinas X137. Harbour Tugs, Towage Operators and Tug Builders: Philippine company providing harbour and offshore tug services at Subic and other ports.
Coastal pilot X15. Ports, Terminals and Stevedoring: pilot certified for coastal pilotage outside compulsory areas.
Coastal Plain D2. Hydrography, tides, waves, bathymetry and marine geology: Flat lowland adjacent to a coast.
Coastal protection X124. Dredging Industry and Reclamation Contractors: Application of dredging to nourish beaches, build offshore breakwaters or restore wetlands.
Coastal Renaissance X85. Ferries, Ro-Pax Operators and Routes: BC Ferries Coastal class ro-pax built 2008.
Coastal RoRo X166. Inland Waterways, Ferries, RoRo, and Short Sea Shipping: Short sea roll-on/roll-off services such as those of CldN between Zeebrugge and the UK and Ireland.
Coastal Service Notation X54. Naval Architecture Software and IACS Rules: Restricted navigation notation issued by IACS societies limiting permissible operating area.
Coastal Skipper Course F4. Recreational Boating, Yachting and Sport: RYA qualification course.
Coastal Squeeze D3. Marine environmental science, pollution and conservation: Loss of intertidal habitat between rising seas and fixed defenses.
Coastal State A6. Public international law of the sea: State with sovereignty or jurisdiction over adjacent maritime zones.
Coastal State (MARPOL) X171. MARPOL 73/78: Annex-by-Annex Detailed Glossary: A state in whose territorial sea, exclusive economic zone, or other zone an Annex contravention is alleged, with port and coastal jurisdiction under Article 4.2.
Coastal State Intervention X60. Marine Salvage and Wreck Removal: Action by a coastal state under the Intervention Convention to prevent or mitigate pollution from a foreign flag casualty.
Coastal State investigation right X163. Marine Accident Investigation Agencies and Landmark Inquiries: Recognition that the coastal State has a substantial interest in serious casualties occurring in its territorial sea or exclusive economic zone and may participate in or initiate an investigation.
Coastal Survey Vessel (CSV) X129. Hydrographic Offices, Survey Vessels and Marine Cartography: NOAA hull class including Thomas Jefferson and Ferdinand R Hassler, designed for inshore multibeam mapping in support of the chart series.
Coastal tanker B5. Ship Types and Individual Vessels: Small tanker for coastal trade.
Coastal traffic zone B3. Nautical Science: Inshore zone seaward of TSS.
Coastal Trial Area X109. Maritime Autonomous Surface Ships and MASS Code: A designated stretch of coastal water authorized by a national maritime authority for MASS testing.
Coastal Tug E4. Cruise, offshore energy and auxiliary/specialised fleets: Harbor or short-sea towage tug.
Coastal Upwelling D1. Physical and chemical oceanography and marine meteorology: Wind-driven uplift of cold, nutrient-rich water along a coastline.
Coastal Virginia Offshore Wind X42. Offshore Wind Installation and Cable Lay: Dominion Energy commercial offshore wind project off Virginia Beach, building on the CVOW pilot.
Coastal Voyage X75. IMDG Code, Classes, Packing and Segregation: Domestic short sea voyage where some flag states permit relaxations of IMDG via national regulation.
Coastal Voyage Agency X86. Port Agency, Husbandry and Disbursement: Agency services for short sea voyages between national ports.
Coastal Vulnerability Index (CVI) D5. Coastal processes, sea-level, cryosphere and ocean observation science: Composite index ranking coastal exposure to sea-level rise.
Coastal waters X16. Nautical Science, Navigation and COLREGs: Waters within twelve nautical miles of the coast.
Coastal Wetland Loss D5. Coastal processes, sea-level, cryosphere and ocean observation science: Decline in mangroves and saltmarshes from various pressures.
Coastal Zone Management Act (CZMA) X37. Marine Spatial Planning, Subsea Cables and Submarine Pipelines: US federal statute enabling state coastal management programs that influence offshore cable and pipeline siting.