Diving Project

Diving Project

Definition(s)

Diving project

A ‘diving project’ is the term used for the overall diving job whether it lasts two hours or two months. Diving project can apply to both a continuous period of elevated pressure, as in saturation diving, and to a number of diving operations, possibly taking place over several days, where the divers are not under continuous elevated pressure. The diving project does not necessarily finish once the last diver has returned to atmospheric pressure. Most decompression procedures require the diver to remain in the close vicinity of a recompression chamber for a specified time in case there is a need for treatment of symptoms of decompression illness. The diving project is only completed once that time period has expired. Source: Commercial Diving Projects Offshore, Diving at Work Regulations 1997, Approved Code of Practice (UK HSE L103), First Edition, 1998. Regulatory Guidance  

Diving project

“Diving project” means any activity, made up of one or more diving operations, in which at least one person takes part or will take part as a diver and extends from the time when that person, or the first such person, commences to prepare to dive until that person, or the last such person, has left the water, chamber or other environment in which the dive, or any part of the dive, took place and has completed any requisite decompression procedures, including, where it may be reasonably anticipated that this will be needed, any therapeutic recompression. Source: The Diving at Work Regulations 1997, UK S.I. 1997/2776, 1997. Regulations  

Diving project

Diving project means an activity consisting of 1 or more diving operations. Source: Offshore Petroleum and Greenhouse Gas Storage (Safety) Regulations 2009 (Select Legislative Instrument 2009 No. 382 as amended), Australia, prepared on 1 January 2012. Regulations
DMAC

DMAC

Definition(s)

DMAC

Diving Medical Advisory Committee. Source: Commercial Diving Projects Offshore, Diving at Work Regulations 1997, Approved Code of Practice (UK HSE L103), First Edition, 1998. Regulatory Guidance
Document Format

Document Format

Definition(s)

Document Format

Document format means the manner in which characters, structure and layout are organised. Source: Guidelines Regarding the Management Regulations, Norway, updated December 2012. Regulatory Guidance
Documentary Evidence

Documentary Evidence

Definition(s)

Documentary Evidence

Documentary evidence means documentation, other than a certificate of competency or certificate of proficiency, used to establish that the relevant requirements of these recommendations have been met. Source: IMO Resolution A.1079(28), Recommendations for the Training and Certification of Personnel on Mobile Offshore Units (MOUs), Adopted on 4 December 2013, International Maritime Organization, Regulatory Guidance
Documentation

Documentation

Definition(s)

Documentation

Records containing descriptions of specific vessel design, personnel training, inspection plans, inspection results, NDE, repair, alteration, rerating and pressure testing activities, FFS assessments, procedures for undertaking these activities, or any other information pertinent to maintaining the integrity and reliability of vessels.

Source: API 510, Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration, Tenth Edition, May 2014, with Addendum May 2017. Global Standards

Documentation

Records containing descriptions of specific training, inspection, NDE, and pressure testing activities, or procedures for undertaking these activities. Source: API 510, Pressure Vessel Inspection Code: In-Service Inspection, Rating, Repair, and Alteration Downstream Segment, Ninth Edition, June 2006. Global Standards  

Documentation

Documentation as mentioned in the second subsection, means a description of a) measures taken, b) results from remote measurement and environmental surveys in connection with acute pollution, c) environmental impact and detrimental environmental consequences, d) achievement of objectives, e) criteria for concluding measures. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory Guidance
Documents

Documents

Definition(s)

Documents

The reference to ‘documents’, here and elsewhere in the Regulations, should be construed as also meaning information and data held electronically, on microfilm, or in any other form. Source: A Guide to the Offshore Installations (Safety Representatives and Safety Committees) Regulations 1989, Guidance on Regulations (UK HSE L110), Third Edition, 2012. Regulatory Guidance  

Documents

Again, references to ‘documents’ should be construed as also meaning information and data held electronically, on microfilm, or other media. Source: A Guide to the Offshore Installations (Safety Representatives and Safety Committees) Regulations 1989, Guidance on Regulations (UK HSE L110), Third Edition, 2012. Regulatory Guidance  

Documents

Information and its supporting medium (see record). Note: CSA Standard CAN/CSA-ISO 9000:05. Source: Environmental Protection Plan Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, March 31, 2011. Regulatory Guidance Source: Safety Plan Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, March 31, 2011. Regulatory Guidance  

Documents

In this section, “document” includes any amendment to the document. Source:  Canada Petroleum Resources Act, R.S.C. 1985, c. 36 (2nd Supp.), current to April 29, 2013. Legislation
DP

DP

Definition(s)

DP

Design Pressure. Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. Global Standards

DP

Plain end drill pipe. Source: API RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. Global Standards  

DP

Dynamically positioned. Source: API Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. Global Standards Source: Commercial Diving Projects Offshore, Diving at Work Regulations 1997, Approved Code of Practice (UK HSE L103), First Edition, 1998. Regulatory Guidance Source: Oil & Gas UK, Guidelines on subsea BOP systems, Issue 1, July 2012, Global Standards  

DP

Drillpipe or Dynamic Positioning. Source: Deepwater Well Control Guidelines. IADC Guidelines  

DP

Dynamic positioning. Source: API  Bulletin 97, Well Construction Interface Document Guidelines, First Edition, December 2013. Global Standards Source: International Association of Drilling Contractors, Appendix 2 to Health, Safety and Environment Case Guidelines for Offshore Drilling Contractors, Issue 3.3.2, February 2010. IADC Guidelines Source: ISO 19901-7:2013, Petroleum and natural gas industries – Specific requirements for offshore structures – Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units. Global Standards Source: ISO 13624-1:2009, Petroleum and natural gas industries – Drilling and production equipment – Part 1:Design and operation of marine drilling riser equipment. Global Standards Source: NORSOK D-010, Well integrity in drilling and well operations, Rev. 3, August 2004. Global Standards Source: OGP Report No. 476, Recommendations for enhancements to well control training, examination and certification, International Association of Oil & Gas Producers, October 2012. Global Standards  

DP

Stationkeeping technique consisting primarily of a system of automatically controlled on-board thrusters, which generate appropriate thrust vectors to counter the mean and slowly varying induced actions. Source: ISO 19901-7:2013, Petroleum and natural gas industries – Specific requirements for offshore structures – Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units. Global Standards
DP Control Station

DP Control Station

Definition(s)

DP Control Station

Dynamic Positioning control station (DP control station) means a workstation designated for DP operations, where necessary information sources, such as indicators, displays, alarm panels, control panels and internal communication systems are installed (this includes: DP control and independent joystick control operator stations, required position reference systems' Human Machine Interface (HMI), manual thruster levers, mode change systems, thruster emergency stops, internal communications). Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance
DP Control System

DP Control System

Definition(s)

DP Control System

Dynamic Positioning control system. Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance  

DP Control System

Dynamic Positioning control system (DP control system) means all control components and systems, hardware and software necessary to dynamically position the vessel. The DP control system consists of the following:
  1. computer system/joystick system;
  2. sensor system(s);
  3. control stations and display system (operator panels);
  4. position reference system(s);
  5. associated cabling and cable routeing; and
  6. networks
Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance
DP Operation

DP Operation

Definition(s)

DP Operation

Dynamic Positioning Operation. Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance  

DP Operation

Dynamic Positioning operation (DP operation) means using the DP system to control at least two degrees of freedom in the horizontal plane automatically. Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance
DP System

DP System

Definition(s)

DP System

Dynamic Positioning system. Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance  

DP System

Dynamic Positioning system (DP system) means the complete installation necessary for dynamically positioning a vessel comprising, but not limited to, the following sub-systems:
  1. power system;
  2. thruster system; and
  3. DP control system.
Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance
DP Vessel

DP Vessel

Definition(s)

DP Vessel

Dynamically positioned vessel (DP vessel). Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance  

DP Vessel

Dynamically positioned vessel (DP vessel) means a unit or a vessel which automatically maintains its position and/or heading (fixed location, relative location or predetermined track) by means of thruster force. Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance
DPR

DPR

Definition(s)

DPR

Newfoundland Offshore Petroleum Drilling and Production Regulations, 2009 and Nova Scotia Offshore Petroleum Drilling and Production Regulations, 2009. Incident Reporting and Investigation Guidelines, The Canada-Nova Scotia Offshore Petroleum Board and Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada, November 30, 2012. Regulatory Guidance
DPVAD

DPVAD

Definition(s)

DPVAD

Dynamic Positioning Verification Acceptance Document. Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance  

DPVAD

Dynamic Positioning Verification Acceptance Document (DPVAD) means the document issued by the Administration or its Recognized Organization to a DP vessel complying with these Guidelines. Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance
DQA

DQA

Definition(s)

DQA

Data Quality Assurance.

Source: IMO MSC.1/Circ.1512, Guideline on Software Quality Assurance and Human-Centred Design for e-navigation, 8 June 2015, International Maritime Organization. Regulatory Guidance

DQA

A set of processes, that ensures that shore and shipboard based data used by e-navigation systems meets and complies with required quality specifications. Source: IMO MSC.1/Circ.1512, Guideline on Software Quality Assurance and Human-Centred Design for e-navigation, 8 June 2015, International Maritime Organization. Regulatory Guidance
Draught

Draught

Definition(s)

Draught

Draught is the vertical distance from the moulded baseline to the waterline. Source: IMO resolution MSC.267(85), International Code on Intact Stability, 2008 (2008 IS Code), 4 December 2008, International Maritime Organization. Regulatory Guidance Source: IMO Resolution MSC.267(85), adoption of the International Code on Intact Stability, 2008 (2008 IS Code), 4 December 2008, International Maritime Organization. Regulatory Guidance  

Draught (d)

Draught (d) is the vertical distance from the keel line at mid-length to the waterline in question. <Chapter II-1, regulation 2>. Source: IMO Resolution MSC.216(82), amendments to the International Convention for the Safety of Life at Sea, 1974, as amended, 8 December 2006, International Maritime Organization. Legislation
Drill

Drill

Definition(s)

Drill

Drill means a form of exercise which provides the opportunity to practice elements of the system. Drills are carried out under realistic conditions while allowing for instruction and training, e.g. breathing apparatus drills for the fire team, casualty handling for first aid and stretcher teams, etc. Source: IMO Resolution A.1079(28), Recommendations for the Training and Certification of Personnel on Mobile Offshore Units (MOUs), Adopted on 4 December 2013, International Maritime Organization, Regulatory Guidance
Drilled Solids

Drilled Solids

Definition(s)

Drilled Solids

Formation solids which enter the drilling-fluid system, whether produced by the drill bit or from the side of the borehole. Source: API RP 13C, Recommended Practice on Drilling Fluids Processing Systems Evaluation, Upstream Segment, Fourth Edition, December 2010. Global Standards  

Drilled Solids

Drilling solids or cuttings are particles that are generated by drilling into subsurface geological formations and are carried to the surface with drilling muds. Source:  Offshore Waste Treatment Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, December 15, 2010. Regulatory Guidance  

Drilled Solids

Drilling muds are fluids that are circulated in oil and gas wells to clean and condition the hole, to lubricate the drill bit and to counterbalance formation pressure. These muds consist of a “continuous phase” which forms the base fluid and in which the various other mud components are suspended or dissolved. Depending on the nature of the well to be drilled and the technical requirements, wells may be drilled using one mud system from top to bottom, or may require modifications to the mud formulation or mud type as the well progresses. Source:  Offshore Waste Treatment Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, December 15, 2010. Regulatory Guidance  
Drilling Fluid Systems

Drilling Fluid Systems

Definition(s)

Drilling Fluid Systems.

Drilling fluid systems mean systems with tanks (pits), pumps, piping, chemical store, sensors, indicators and alarms to monitor, record, recondition, transfer and store fluids. Source: Guidance Notes on Petroleum and Natural Gas (Safety in Offshore Operations) Rules, 2008, Oil Industry Safety Directorate (India), 2012. Regulatory Guidance
Drilling Program

Drilling Program

Definition(s)

Drilling Program

  “Drilling program” means the program for the drilling of one or more wells within a specified area and time using one or more drilling installations and includes any work or activity related to the program (programme de forage). Source: Canada Oil and Gas Drilling and Production Regulations, SOR/2009-315, February 2013. Regulations Source: Drilling and Production Guidelines, The Canada-Nova Scotia Offshore Petroleum Board and Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada, March 31, 2011. Regulatory Guidance Source: Nova Scotia Offshore Petroleum Drilling and Production Regulations, SOR/2009-317, Canada, current to May 31, 2012. Regulations
Drilling Regulations

Drilling Regulations

Definition(s)

Drilling Regulations

Canada Oil and Gas Drilling Regulations, Newfoundland Offshore Petroleum Drilling Regulations,  Nova Scotia Offshore Petroleum Drilling Regulations. Source:  Offshore Physical Environmental Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, September 2008. Regulatory Guidance
Dry Pipe System

Dry Pipe System

Definition(s)

Dry Pipe System

A sprinkler system employing automatic sprinklers attached to a piping system containing air or nitrogen under pressure, the release of which (as from the opening of a sprinkler) permits the water pressure to open a valve known as a dry pipe valve. The water then flows into the piping system and out of the opened sprinklers. Source:  Resolution A.800(19), Revised Guidelines for Approval of Sprinkler Systems Equivalent to that Referred to in SOLAS Regulation 11-2/12, 23 November 1995, International Maritime Organization. Regulatory Guidance
DSV

DSV

Definition(s)

DSV

Diving Support Vessel. Source: A Guide to the Offshore Installations and Pipelines Works (Management and Administration) Regulations 1995, Guidance on Regulations (UK HSE L70), Second Edition, 2002. Regulatory Guidance Source: NOGEPA Guideline 14, Helideck Operations and Procedures Manual, Netherlands, Version 2, December 2011. Global Standards
Duty Holder

Duty Holder

Definition(s)

Duty holder

The ‘duty holder’ is the operator in the case of a fixed installation (including fixed production and storage units); and the owner in the case of a mobile installation. Source: A Guide to the Offshore Installations (Safety Representatives and Safety Committees) Regulations 1989, Guidance on Regulations (UK HSE L110), Third Edition, 2012. Regulatory Guidance  

Duty holder

The ‘duty holder’ is defined in regulation 2(1) of MAR. Detailed guidance is set out in the guidance to MAR, regulation 2. Source: Health Care and First Aid on Offshore Installations and Pipeline Works, Offshore Installations and Pipeline Works (First-Aid) Regulations 1989, Approved Code of Practice and Guidance (UK HSE L123), Second Edition, 2000. Regulatory Guidance

Duty holder

Any person with a duty under any listed OHS law. Source: NOPSEMA Guideline – Glossary – Regulatory Operations, N-09000-GL0326, Australia, Revision 5, December 2011. Regulatory Guidance  

Duty holder

The duty holder structure for these Regulations is the same as that in SCR (the operator, in the case of a fixed installation, and the owner, in the case of a mobile installation). Source: Prevention of Fire and Explosion, and Emergency Response on Offshore Installations, Offshore Installations (Prevention of Fire and Explosion, and Emergency Response) Regulations 1995, Approved Code of Practice and guidance (UK HSE L65), Second Edition, 1997. Regulatory Guidance  

Duty holder

“Duty holder” means
  1. in relation to a fixed installation, the operator; and
  2. in relation to a mobile installation, the owner.
Source: The Offshore Installations and Pipeline Works (Management and Administration) Regulations 1995, UK S.I. 1995/738, 1995. Regulations Source: The Offshore Installations (Prevention of Fire and Explosion, and Emergency Response) Regulations 1995, S.I. 1995/743, 1995. Regulations  

Duty holder

In regulation 2 (interpretation) of the Offshore Installations (Safety Representatives and Safety Committees) Regulations 1989 (Note: S.I. 1989/971; amended by S.I. 1992/2885.) (“the 1989 Regulations”): after the definition of “appropriate languages” there shall be inserted the following definition: ““duty holder” in relation to an offshore installation means the person who is the duty holder within the meaning of regulation 2(1) of the 1995 Regulations for the purpose of those Regulations”. Source: The Offshore Installations and Pipeline Works (Management and Administration) Regulations 1995, UK S.I. 1995/738, 1995. Regulations  

Duty holder

“duty holder” means—
  1. in relation to a production installation, the operator; and
  2. in relation to a non-production installation, the owner.
Source: The Offshore Installations (Safety Case) Regulations 2005, UK S.I. 2005/3117, 2005. Regulations Source: Health and Safety in Employment (Petroleum Exploration and Extraction) Regulations 2013, SR 2013/208, New Zealand, as of May 2013. Regulations  

Duty holder

For S.I. 1995/738, in regulation 2(1) (interpretation) for the definition of “duty holder”, substitute ““duty holder” means—
  1. in relation to a production installation, the operator; and
  2. in relation to a non-production installation, the owner.
 Source: The Offshore Installations (Safety Case) Regulations 2005, UK S.I. 2005/3117, 2005. Regulations
DVIS

DVIS

Definition(s)

DVIS

Diving Information Sheet. Source: Commercial Diving Projects Offshore, Diving at Work Regulations 1997, Approved Code of Practice (UK HSE L103), First Edition, 1998. Regulatory Guidance
DVR

DVR

Definition(s)

DVR

Newfoundland Offshore Area Petroleum Diving Regulations, 1988 and Nova Scotia Offshore Area Petroleum Diving Regulations, 1995. Incident Reporting and Investigation Guidelines, The Canada-Nova Scotia Offshore Petroleum Board and Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada, November 30, 2012. Regulatory Guidance
Dynamic Error

Dynamic Error

Definition(s)

Dynamic Error

Dynamic error: error which is caused by dynamic influences acting on the system such as vibration, roll, pitch or linear acceleration. This error may have an amplitude and usually a frequency related to the environmental influences and the parameters of the system itself. Source: IMO Resolution MSC.116(73), Recommendation on Performance Standards for Marine Transmitting Heading Devices (THDs), 1 December 2000, International Maritime Organization. Regulatory Guidance
Dynamic Positioning Control Station (DP control station)

Dynamic Positioning Control Station (DP control station)

Definition(s)

Dynamic Positioning Control Station (DP control station)

A workstation designated for DP operations, where necessary information sources, such as indicators, displays, alarm panels, control panels and internal communication systems are installed (this includes: DP control and independent joystick control operator stations, required position reference systems' Human Machine Interface (HMI), manual thruster levers, mode change systems, thruster emergency stops, internal communications). Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance  

Dynamic Positioning Control Station

Dynamic Positioning control station (DP control station) means a workstation designated for DP operations, where necessary information sources, such as indicators, displays, alarm panels, control panels and internal communication systems are installed (this includes: DP control and independent joystick control operator stations, required position reference systems' Human Machine Interface (HMI), manual thruster levers, mode change systems, thruster emergency stops, internal communications). Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance
Dynamic Positioning Control System (DP control system)

Dynamic Positioning Control System (DP control system)

Definition(s)

Dynamic Positioning Control System (DP control system)

Comprises all control components and systems, hardware and software necessary to dynamically position the vessel. The DP control system consists of the following:
  • computer system/joystick system
  • sensor system(s)
  • control stations and display system (operator panels)
  • position reference system(s)
  • associated cabling and cable routing
  • networks
Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance  

Dynamic Positioning Control System (DP control system)

Dynamic Positioning control system (DP control system) means all control components and systems, hardware and software necessary to dynamically position the vessel. The DP control system consists of the following:
  1. computer system/joystick system;
  2. sensor system(s);
  3. control stations and display system (operator panels);
  4. position reference system(s);
  5. associated cabling and cable routeing; and
  6. networks.
Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance
Dynamic Positioning Operation (DP operation)

Dynamic Positioning Operation (DP operation)

Definition(s)

Dynamic Positioning Operation (DP operation)

Using the DP system to control at least two degrees of freedom in the horizontal plane automatically.

Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance  

Dynamic Positioning Operation

Dynamic Positioning operation (DP operation) means using the DP system to control at least two degrees of freedom in the horizontal plane automatically.

Source: IMO MSC.1/Circ.1580, GUIDELINES FOR VESSELS AND UNITS WITH DYNAMIC POSITIONING (DP) SYSTEMS, 16 June 2017, International Maritime Organization. Regulatory Guidance