Criticality Assessment

Criticality Assessment

Definition(s)

Criticality Assessment

Product or process of systematically identifying, evaluating, and prioritizing based on the importance of an impact to mission(s), function(s), or continuity of operations.

Source:API STANDARD 780, Security Risk Assessment Methodology for the Petroleum and Petrochemical Industries, First Edition, May 2013. Global Standards

Criticality Assessment

Product or process of systematically identifying, evaluating, and prioritizing based on the importance of an impact to mission(s), function(s), or continuity of operations Sample Usage: A criticality assessment determined that the county's chemical plants required greater attention than previously determined. Source: DHS Risk Lexicon, U.S. Department of Homeland Security, 2010 Edition. September 2010 Regulatory Guidance
Cross Deck

Cross Deck

Definition(s)

Cross Deck

Cross deck means the transverse area of the main deck which is located inboard and between hatch coamings. Source: IMO Resolution MSC.158(78), amendments to the Technical provisions for means of access for inspections (Resolution MSC.133(76)), 20 May 2004, International Maritime Organization. Regulatory Guidance
Crude Oil Tanker

Crude Oil Tanker

Definition(s)

Crude Oil Tanker

Crude oil tanker means an oil tanker engaged in the trade of carrying crude oil. 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
CSA

CSA

Definition(s)

CSA

Canadian Standards Association. API RP 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2, Third Edition, December 2012, Global Standards Source: API RP 14F, Design, Installation, and Maintenance of Electrical Systems for Fixed and Floating Offshore Petroleum Facilities for Unclassified and Class 1, Division 1 and Division 2 Locations, Fifth Edition, July 2008. Global Standards 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 Source:  Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. Regulations 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 Source: Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, Canada, current to April 29, 2013. Regulations  

CSA

“CSA” means the Canadian Standards Association (ACNOR). Source: Canada Oil and Gas Occupational Safety and Health Regulations, SOR/87-612, February 2013. Regulations 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
CSR

CSR

Definition(s)

CSR

Casing shear ram. Source: API STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. Global Standards Source: Oil & Gas UK, Guidelines on subsea BOP systems, Issue 1, July 2012, Global Standards  

CSR

Offshore Installations (Construction and Survey) Regulations 1974. 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
CTD

CTD

Definition(s)

CTD

Conductivity - Temperature - Depth. Profile data used to determine seawater properties, e.g. density, temperature, salinity. 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
Cuttings

Cuttings

Definition(s)

Cuttings

Formation pieces dislodged by the drill bit and brought to the surface in the drilling fluid. NOTE Field practice is to call all solids removed by the shaker screen “cuttings,” although some can be sloughed material. Source: API RP 13C, Recommended Practice on Drilling Fluids Processing Systems Evaluation, Upstream Segment, Fourth Edition, December 2010. Global Standards  

Cuttings

Cuttings as mentioned in the first subsection, means both solid material from the formation and solid material added as part of the drilling fluid or other fluids used in drilling and well activities. Organic drilling fluid means mineral oil-based and synthetic drilling fluid. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory Guidance  
D-value

D-value

Definition(s)

D-value

D-value means the largest dimension of the helicopter used for assessment of the helideck when its rotors are turning. It establishes the required area of foam application. Source: IMO MSC.1/Circ.1431, Guidelines for the approval of helicopter facility foam fire-fighting appliances, 31 May 2012, International Maritime Organization. Regulatory Guidance
Dangerous Atmosphere

Dangerous Atmosphere

Definition(s)

Dangerous Atmosphere

"Dangerous atmosphere" means an atmosphere that may expose workers to the risk of death, incapacitation, impairment of ability to self-rescue (i.e. to escape unaided from a space), injury or acute illness. Source: Resolution MEPC.210(63), 2012 Guidelines for safe and environmentally sound ship recycling, 2 March 2012, International Maritime Organization. Regulatory Guidance
Dangerous Chemicals

Dangerous Chemicals

Definition(s)

Dangerous Chemicals

Dangerous chemicals means any liquid chemicals designated as presenting a safety hazard, based on the safety criteria for assigning products to chapter 17. Source: Resolution MEPC.119(52), 2004 amendments to the International Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk (IBC Code), 15 October 2004. Regulatory guidance, International Maritime Organization
Data Quality

Data Quality

Definition(s)

Data Quality

The degree to which quality characteristics of data have the intrinsic potential to satisfy stated and implied needs. 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
Data Quality Assurance (DQA)

Data Quality Assurance (DQA)

Definition(s)

Data Quality Assurance (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
Day-to-day Management and Control (Operator)

Day-to-day Management and Control (Operator)

Definition(s)

Day-to-day management and control (operator)

Refer to advice from the Australian Government Solicitor, particularly Objective record A105840. Source: NOPSEMA Guideline – Glossary – Regulatory Operations, N-09000-GL0326, Australia, Revision 5, December 2011. Regulatory Guidance    
Day-to-day Management and Control (Operator’s Representative)

Day-to-day Management and Control (Operator’s Representative)

Definition(s)

Day-to-day management and control (operator’s representative)

Refer to advice from Australian Government Solicitor, particularly Objective record A70187. Source: NOPSEMA Guideline – Glossary – Regulatory Operations, N-09000-GL0326, Australia, Revision 5, December 2011. Regulatory Guidance    
Daylight Signalling Lamps

Daylight Signalling Lamps

Definition(s)

Daylight Signalling Lamps

"Daylight signalling lamps" means lamps suitable for transmitting white light signals to an observer by focused light beams which may be fixed or portable. Source: IMO Resolution MSC.95(72), Recommendation on Performance Standards for Daylight Signalling Lamps, 22 May 2000, International Maritime Organization. Regulatory Guidance. 
DCI

DCI

Definition(s)

DCI

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

DCR

Definition(s)

DCR

Design and Construction Regulations, UK. 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  

DCR

Offshore Installations and Wells (Design and Construction, etc) Regulations 1996. 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 Source: Oil & Gas UK, Guidelines on subsea BOP systems, Issue 1, July 2012, Global Standards
Decision Analysis

Decision Analysis

Definition(s)

Decision Analysis

Techniques, body of knowledge, and professional practice used to provide analytical support for making decisions through a formalized structure. Sample Usage: Decision analysis can be used to more effectively allocate resources to various risk reduction measures. Annotation: Decision analysis can be used in the context of risk analysis to evaluate complex risk management decisions. Decision analysis can be applied to strategic, operational, and tactical decisions. Source: DHS Risk Lexicon, U.S. Department of Homeland Security, 2010 Edition. September 2010 Regulatory Guidance
Deck Drainage

Deck Drainage

Definition(s)

Deck Drainage

Deck drainage is water that reaches the deck of offshore installations through precipitation, sea spray, or from routine operations such as washdown and fire drills. 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
Deck Integrated Foam Nozzles

Deck Integrated Foam Nozzles

Definition(s)

Deck Integrated Foam Nozzles

Deck integrated foam nozzles are foam nozzles recessed into or edge mounted on the helideck. Source: IMO MSC.1/Circ.1431, Guidelines for the approval of helicopter facility foam fire-fighting appliances, 31 May 2012, International Maritime Organization. Regulatory Guidance
Decommissioning

Decommissioning

Definition(s)

Decommissioning

Decommissioning is the process followed by the owner/operator of an offshore oil and/or gas facility to plan for, gain approval, and then implement the removal, disposal, or reuse of the platform structure, equipment, and associated pipelines and wells. Source: API RP 2SIM, Structural Integrity Management of Fixed Offshore Structures, First Edition, November 2014. Global Standards

Decommissioning

A process followed to plan, gain approval for, and implement the removal, disposal, or reuse of the platform structure, equipment, and associated pipelines and wells. Source: API RP 2SIM, Structural Integrity Management of Fixed Offshore Structures, First Edition, November 2014. Global Standards

Decommissioning

Process of shutting down a platform and removing it from its current location at the end of its service life. Source: ISO 19900:2013, Petroleum and natural gas industries – General requirements for offshore structures. Global Standards

Decommissioning

In relation to a facility, means activities conducted to remove a facility from service. Note that for some facilities there may not be a decommissioning stage – e.g. construction or accommodation vessels. Source: NOPSEMA Guidance note: Safety Case Lifecycle Management, N04300-GN0087, Australia, Revision 5, December 2012. Regulatory Guidance  

Decommissioning

Activity to bring a lifting appliance out of operation after it has served its purpose. Source: Verification of Lifting Appliances for the Oil and Gas Industry, DNV-OSS-308, October 2010, Det Norske Veritas AS, Global Standards
Dedicated Reserve Power Source

Dedicated Reserve Power Source

Definition(s)

Dedicated Reserve Power Source

Dedicated reserve power source means a secondary battery, with suitable automatic charging arrangements, dedicated solely to the S-VDR, of sufficient capacity to operate it as required by 5.3.2. Source: IMO Resolution MSC.163(78), Recommendation on Performance Standards for Shipborne Simplified Voyage Data Recorders (S-VDRs), 17 May 2004, International Maritime Organization. Regulatory Guidance
Deficiency

Deficiency

Definition(s)

Deficiency

A condition found not to be in compliance with the requirements of the relevant convention. Source: IMO resolution A.1052(27), Procedures for Port State Control, 2011, 201 December 2011, International Maritime Organization. Regulatory Guidance 
Defined Hazard and Accident Situations

Defined Hazard and Accident Situations

Definition(s)

Defined Hazard and Accident Situations

The defined hazard and accident situations as mentioned in the first subsection, mean a representative selection of hazard and accident situations used in the dimensioning of the emergency preparedness. Source: Guidelines Regarding the Activities Regulations, Norway, updated December 2012. Regulatory Guidance Source: Guidelines Regarding the Technical and Operational Regulations, Norway, updated December 2012. Regulatory Guidance
Defined Situation of Hazard and Accident

Defined Situation of Hazard and Accident

Definition(s)

Defined Situation of Hazard and Accident

Defined situation of hazard and accident means representative situations of hazard and accident used for dimensioning the emergency preparedness. Source: Guidance Notes on Petroleum and Natural Gas (Safety in Offshore Operations) Rules, 2008, Oil Industry Safety Directorate (India), 2012. Regulatory Guidance
Delineation Well

Delineation Well

Definition(s)

Delineation Well

In these Regulations, “delineation well”, “development well” and “exploratory well” have the same meaning as in subsection 101(1) of the Canada Petroleum Resources Act. Source: Canada Oil and Gas Drilling and Production Regulations, SOR/2009-315, February 2013. Regulations  

Delineation Well

“Delineation well” means a well that is so located in relation to another well penetrating an accumulation of petroleum that there is a reasonable expectation that another portion of that accumulation will be penetrated by the first-mentioned well and that the drilling is necessary in order to determine the commercial value of the accumulation. 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:  Canada Petroleum Resources Act, R.S.C. 1985, c. 36 (2nd Supp.), current to April 29, 2013. Legislation Source: Canada-Nova Scotia Offshore Petroleum Resources Accord Implementation Act, S.C. 1988, c. 28, Canada, current to May 26, 2013. Legislation  

Delineation Well

In these Regulations, “delineation well”, “development well” and “exploratory well” have the same meaning as in subsection 122(1) of the Act. Source: Nova Scotia Offshore Petroleum Drilling and Production Regulations, SOR/2009-317, Canada, current to May 31, 2012. Regulations
Deluge System

Deluge System

Definition(s)

Deluge System

A sprinkler system employing open sprinklers attached to a piping system connected to a water supply through a valve that is opened by the operation of a detection system installed in the same areas as the sprinklers. When this valve opens, water flows into the piping system and discharges from all sprinklers attached thereto. 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  

Deluge System

System to apply fire-water through an array of open spray nozzles by operation of a valve on the inlet to the system. Source: ISO 13702:2015, Petroleum and natural gas industries — Control and mitigation of fires and explosions on offshore production installations — Requirements and guidelines, Second Edition, August 2015. Global Standards
Demonstrate

Demonstrate

Definition(s)

Demonstrate

Demonstrate means evidence of concrete actions undertaken for fulfilling requirements of these Rules. Source: Guidance Notes on Petroleum and Natural Gas (Safety in Offshore Operations) Rules, 2008, Oil Industry Safety Directorate (India), 2012. Regulatory Guidance

Demonstrate

Demonstrate: to describe and explain with the help of specimens; to manifest or exhibit (The Macquarie Dictionary Online © 2007). Source: NOPSEMA Guidance note: Safety Case Content and Level of Detail, N-04300-GN0106, Australia, Revision 5, December 2012. Regulatory Guidance
Density

Density

Definition(s)

Density

Mass divided by volume. NOTE 1 In the SI system, density is expressed in kilograms per cubic metre (kg/m3); In United States Customary units it is expressed as pounds per gallon (lb/gal) or pounds per cubic foot (lb/ft3). NOTE 2 Drilling fluid density is commonly referred to as “drilling fluid weight” or “mud weight. Source: API RP 13C, Recommended Practice on Drilling Fluids Processing Systems Evaluation, Upstream Segment, Fourth Edition, December 2010. Global Standards  

Density

Mass of a substance per unit of volume. Source: IADC UBO / MPD Glossary, December 2011. Global Standards  

Density

Density is the ratio of the mass to the volume of a product, expressed in terms of kilograms per cubic metre. This applies to liquids, gases and vapours. Source: Resolution MEPC.119(52), 2004 amendments to the International Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk (IBC Code), 15 October 2004, International Maritime Organization, Regulatory Guidance  
Dependent Contractor

Dependent Contractor

Definition(s)

Dependent Contractor

A person, whether or not employed under a contract of employment and whether or not furnishing the person’s own tools, vehicles, equipment, machinery, material or any other thing, who performs work or services for another on such terms and conditions that the person is in a position of economic dependence upon the other, under an obligation to perform duties mainly for the other, and in a relationship with the other more closely resembling that of an employee than an independent contractor. Note: 6 OSH (NS) Element 1, Part 1, Section 1.1. Source: 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  

Dependent Contractor

“Dependent contractor” means a person, whether or not employed under a contract of employment and whether or not furnishing the person’s own tools, vehicles, equipment, machinery, material or any other thing, who performs work or services for another on such terms and conditions that the person is
  1. in a position of economic dependence upon the other,
  2. under an obligation to perform duties mainly for the other, and
  3. in a relationship with the other more closely resembling that of an employee than an independent contractor.
Source:  Nova Scotia Offshore Petroleum Occupational Health & Safety Requirements, Canada-Nova Scotia Offshore Petroleum Board, Canada, December 2000. Regulations