Maritime Terms, Abbreviations and Acronyms

DirectENC or dENC is a chart format which is specific to ECDIS or ECS systems that use the SevenCs EC2007 ECDIS Kernel AND that have been enabled by their manufacturer for SENC data.

Crude black oil

MR 25-60. Panamax 60-80. Aframax 80-120. Suezmax 120-180. VLCC 180-350.  ULCC 350 and up

Danish International Ship Register

Expenses incurred in a port against the general expenses of the vessel these include wages , loading and /or discharging bunkers, water, provisions, customs clearance, port and quay dues, pilotage, tugs and other pertinent costs.

Discharge

When documents presented do not conform to the requirements of the letter of credit (L/C), it is referred to as a “discrepancy.” Banks will not process L/C’s which have discrepancies. They will refer the situation back to the buyer and/or seller and await further instructions.

Displacement

See Despatch.

The weight, in tons of 2,240 pounds, of the vessel and its contents. Calculated by dividing the volume of water displaced in cubic feet by 35, the average density of sea water.

Company that control the commercial operation of a vessel under a bareboat or Time charter party. The person who by reason of a contract or charter party assumes responsibility for a vessel as if he were the owner.

Discharge port

The liquid obtained through distillation.

Process in oil refining where heat is used to separate the various components of crude oil. Because each component has a different boiling point, gradual heating allows them to be separated through evaporation and collection of the vapors.

The boiling temperature distribution of a material's component molecules. Tests report this characteristic as temperature at which various percentages of a sample have boiled or as the percentages which have boiled at various temperatures.

separation equipment that heats a mixture and divides its ingredients according to the temperature where they boil.

see DISTILLATION UNIT. A term most often used as shorthand for "crude oil distillation unit."

Inland wholesalers.

A change made either in the route of a shipment in transit (see Reconsignment) or of the entire ship.

A semi submersible diving support platform

A vessel primarily equipped with decompression chambers for air dive operation. Does not include vessels which can only operate submersibles

A naval auxiliary vessel designed and fitted with equipment to support diver operations. May have cranes for construction/maintenance work.

Carriers’ practice of dividing revenue received from rates where joint hauls are involved. This is usually according to agreed formulae.

Deck

Dropping last outward pilot

Dropping last outward sea pilot

Daily

Discountless and Non-Returnable Cargo and/or Ship Lost or Not Lost. (ie for the payment of voyage freight in the charter party)

Discountless and Non-Returnable Ship and/or Cargo Lost or Not Lost

Det Norske Veritas (Norwegian Class Society)

Diesel Oil or Delivery Order

Document of compliance (ISM)

For ships, a cargo handling area parallel to the shoreline where a vessel normally ties up. For land transportation, a loading or unloading platform at an industrial location or carrier terminal.

A dock gate

A form used to acknowledge receipt of cargo and often serves as basis for preparation of the ocean bill of lading.

Refers to the charge assessed against the vessel for berthing at the facility or for morring to a vessel so berthed.

Present a rate proposal to a conference meeting for adoption as a conference group rate.

An indicator to detect the presence of significant amounts of mercaptan sulfur in light hydrocarbon mixture. Materials passing this test carry the designation, "Doctor negative." Doctor negative stocks have sufficiently low mercaptan levels for use in motor gasoline. Doctor positive materials do not necessarily have too much mercaptan, but may require a more quantitative test.

Instructions given by a shipper to a bank indicating that documents transferring title to goods should be delivered to the buyer only upon the buyer’s acceptance of the attached draft.

An indication on a draft that the documents attached are to be released to the drawee only on pay- ment.

Dropping outward harbor pilot

A set of wheels that support the front of a container; used when the automotive unit is disconnected.

Dropping Off Last Sea Pilot (Norway)

Through transportation of a container and its contents from consignor to consignee. Also known as House to House. Not necessarily a through rate.

Dropping outward pilot

Declaration of Security

Declaration of Security

Dropping outward sea pilot

Department of Transportation

The chemical bond between two carbon atoms can involve one, two or three pairs of electrons, producing a single (C-C), double (C=C) or triple (C≡C) bond. While the extra pairs of electrons give the bond more energy they also make it more chemically reactive.

A relative term, which indicates greater removal from origins than some point of reference. For example, a petrochemical plant which cracks naphtha lies downstream from a refinery. Money made by marketing products constitutes downstream profits compared to earnings on crude sales. The opposite of upstream.

Dynamic Positioning - DP allows a vessel to remain in the same location, even in harsh weather, through the combined use of rudders, thrusters, propellers, a position reference system and a computer.

Dynamic Positioning

Designated person ashore (ISM)

Discharge port disbursements

Dipropylene Glycol Ethyl Ether

Dipropylene Glycol Methyl Ether

Dual-purpose kerosene. Product suitable for use as burning kerosene and aviation turbine fuel.

Division of Parks and Outdoor Recreation (ADNR)

Dirty petroleum products

The distance between a ship's keel and waterline. The lowest part of a vessel lies this far below the surface of the water. Every ship's draft changes with the amount of cargo aboard it, its trim and the temperature and salt content of the water in which it floats. A ship reaches its deepest draft when fully laden in warm fresh water. The shipping industry calls that distance "tropical fresh" or "TF" draft. "Fresh" (F),"tropical"(T), "summer" (s), and "winter"(W) report increasingly shallow drafts for a vessel; reflecting denser and denser water.

Depth to which a ship is immersed in water. The depth varies according to the design of the ship and will be greater or lesser depending not only on the weight of the ship and everything on board, but also on the density of the water in which the ship is lying

The draft (or draught) of a vessel is one of the most common pieces of information used in Corps navigation studies and can be defined as the distance between the waterline and the bottom of the ship’s hull (keel) (see Figure A-1). In other words, it is the amount of water needed to for a ship to navigate safely. Channel deepening projects generally require a thorough analysis of vessel drafts. There is an important distinction between a vessel’s design draft and its operating draft. The design draft of a vessel is the maximum draft a vessel could potentially reach fully loaded whereas the operating draft (as required for most Corps studies) examines the typical draft that is employed since it is rare that vessels will sail at their maximum design draft

Depth of water from waterline to lowest point of vessel's hull

An order issued by a seller against a purchaser; directs payment, usually through an intermediary bank. Typical bank drafts are negotiable instruments and are similar in many ways to checks on checking accounts in a bank.

A draft to which no documents are attached.

A draft that matures on a fixed date, regardless of the time of acceptance.

A time draft under a letter of credit that has been accepted and purchased by a bank at a discount.

A draft payable on demand upon presentation.

A draft that matures at a fixed or determinable time after presentation or acceptance.

Discharge rate

A partial refund of an import fee. Refund usually results because goods are re–exported from the country that collected the fee.

The individual or firm that issues a draft and thus stands to receive payment.

Charge made for local hauling by dray or truck. Same as Cartage.

Daily running cost

A vessel equipped to obtain material from the sea bed by an unspecified means. The material may be carried on board, transferred to other vessels, pumped ashore or deposited elsewhere using a spray

A non propelled pontoon with an unknown dredging mechanism

A vessel designed for dredging operations. Not designed for operation in open sea

Thin and worn sails were often treated with oil or wax to renew their effectiveness. This was called "dressing down". An officer or sailor who was reprimanded or scolded received a dressing down.

Destination Rail Freight Station. Same as CFS at destination, except a DRFS is operated by the rail carrier participating in the shipment.

Draft

Direct reduced iron

Process of boring a hole into the earth to remove oil and gas.

A jack up offshore drilling rig

A semi submersible offshore drilling rig.

A vessel primarily equipped for offshore drilling operations. May also be able to obtain cores for research purposes

Derrick Materials of various types, often timber or matting, placed among the cargo for separation, and hence

The drop point is an analysis related to the melting point of oils and fats. The sample is solidified in a small cup with a hole. As the cup is warmed and as the fat starts to melt a drop is formed. The drop point is the temperature at which the drop falls freely.

Hellenic Drachma (currency)

Cargo that is not liquid and normally does not require temperature control.

Dry cargo barges, or hopper barges, transport solid cargo commodities like grain, coal, sugar, sand, gravel, etc. Depending on the cargo, dry cargo barges may be open or covered. For example, sugar would likely be transported in a covered hopper barge, while sand could be carried in an open dry cargo barge.

A preparation designed for fighting fires involving flammable liquids, pyrophoric substances and electrical equipment. Common types contain sodium bicarbonate or potassium bicarbonate.

A container constructed to carry grain, powder and other free–flowing solids in bulk. Used in conjunction with a tilt chassis or platform.

Dock area that is drained of water so a ship can be repaired or serviced below the waterline. Ships are also built in drydocks.

Oils that have the ability to polymerize or "dry" by oxidation after they have been applied to a surface to form tough, adherent, impervious and abrasive resistant film. Their film forming properties are closely related to their degree of unsaturation. Typical commercial drying oils are linseed oil and tung oil.

Double Side

Digital Selective Calling

Dangerous Goods, Solid Cargoes and Containers

Direct Shuttle Loading - Use of two submerged turret loading systems for direct loading of oil, eliminating the need for a storage vessel.

Deutche-Schiffs-Revision Und-Klassifkation