An Abbreviation is a short form of a word or phrase. (Refer to the Abbreviation of The Project Directory)
| ABBREVIATION | DESCRIPTION | CATEGORY | ||
| AACE | Association for the Advancement of Cost Engineering | Controls | ||
| AAPM | Artificial Advanced Project Management | Management | ||
| ABO | Accumulated Benefit Obligation | Business | ||
| ABV | Alcohol by Volume | Health | ||
| AC | Actual Cost | Controls | ||
| ACC | American Chemistry Council | Engineering | ||
| ACGIH | American Conference of Governmental Industrial Hygienists | Health | ||
| ACI | American Concrete Institute | Engineering | ||
| ACQ | Annual Contract Quantity | Management | ||
| ACS | Automation Control Systems | Engineering | ||
| ACWP | Actual Cost of Work Performed | Controls | ||
| AD | Aggregate Demand | Business | ||
| ADB | Asian Development Bank | Business | ||
| AE | Acoustic Emission Testing | Quality | ||
| AFC | Approved for Construction | Construction | ||
| AFC | Air Fin Cooler | Engineering | ||
| AFD | Approved for Design | Engineering | ||
| AFD | Adjustable Frequency Drive | Engineering | ||
| AFP | Active Fire Protection System | Safety | ||
| AFPM | American Fuel and Petrochemical Manufacturers | Procurement | ||
| AFTA | ASEAN Free Trade Area | Business | ||
| AI | Avian Influenza | Health | ||
| AI | Artificial Intelligence | Technology | ||
| AIC | Amperage Interrupt Capability | Business | ||
| AICE | Association of Iron and Steel Engineers | Engineering | ||
| AICHE | American Institute of Chemical Engineers | Engineering | ||
| AIM | Asset Integrity Management | Management | ||
| AIME | American Institute of Mining Engineers | Engineering | ||
| AISC | The American Institute of Steel Construction | Engineering | ||
| AISI | American Iron and Steel Institute | Engineering | ||
| AIST | Association for Iron and Steel Technology | Engineering | ||
| ALARP | As Low As Reasonably Practicable | Management | ||
| AMA | Advanced Measurement Approach | Management | ||
| AMS | Automated Manifest System | Business | ||
| amu | Atomic Mass Unit | Technology | ||
| ANGA | America's Natural Gas Alliance | Business | ||
| ANSI | American National Standards Institute | Quality | ||
| AOD | Air Operated Diaphragm Pump | Engineering | ||
| AP | Actual Progress | Controls | ||
| AP | Advance Payment | Controls | ||
| APEC | Asia-Pacific Economie Cooperation | Business | ||
| API | American Petroleum Institute | Engineering | ||
| APM | Advanced Project Management | Management | ||
| APO | Asian Productivity Organization | Management | ||
| ARFVTP | California Energy Commission’s Alternative and Renewable Fuel and Vehicle Technology Program | Technology | ||
| ASCE | American Society of Civil Engineers | Engineering | ||
| ASCII | American Standard Code for Information Interchange | Quality | ||
| ASD | Adjustable Speed Drive | Engineering | ||
| ASEAN | Association of Southeast Asian Nations | Business | ||
| ASEE | American Society for Engineering Education | Engineering | ||
| ASHRAE | American Society of Heating, Refrigerating, and Air-Conditioning Engineers | Engineering | ||
| ASME | American Society for Testing and Materials | Quality | ||
| ASNT | The American Society for Nondestructive Testing | Quality | ||
| ASTM | American Society for Testing and Materials | Quality | ||
| ATSDR | Agency for Toxic Substances and Disease Registry | Health | ||
| AWB | Air Waybill | Procurement | ||
| AWG | American Wire Gauge | Construction | ||
| B/A | Banker's Acceptances | Business | ||
| B2B | Business to Business | Business | ||
| B2C | Business to Consumer | Business | ||
| BAC | Budget at Completion | Controls | ||
| BAC | Blood Alcohol Concentration | General | ||
| BAT | Best Available Techniques | Management | ||
| BCM | Business Continuity Management Institute | Management | ||
| BCP | Business Continuity Plan | Management | ||
| BCWP | Budgeted Cost for Work Performed | Controls | ||
| BCWS | Budgeted Cost for Work Scheduled | Controls | ||
| BD | Block Diagram | Engineering | ||
| BDV | Blowdown Valve | Engineering | ||
| BEDD | Basis of Engineering and Design Data | Engineering | ||
| BEDQ | Basis of Engineering and Design Questionnaire | Engineering | ||
| BEELs | Biological Environmental Exposure Levels | Safety | ||
| BFD | Block Flow Diagram | Engineering | ||
| BHP | Brake Horsepower | Engineering | ||
| BI | Biological Indicator | Health | ||
| BIM | Bilateral Monopoly | Engineering | ||
| BIPM | International Bureau of Weights and Measures | Technology | ||
| BIS | Bank for International Settlements | Business | ||
| BLEVE | Boiling Liquid Expanding Vapor Explosion | Technology | ||
| BLM | Building Lifecycle Management | Management | ||
| BLS | Bureau of Labor Statistics | Business | ||
| BM, BOM | Bill of Material | Engineering | ||
| BMI | Body Mass Index | Health | ||
| BMS | Burner Management System | Engineering | ||
| BOD | Biological Oxygen Demand | Engineering | ||
| BOEM | Bureau Ocean Energy Management | Environment | ||
| BOP | Blowout Preventer | Engineering | ||
| BOP | Balance of Plant | Engineering | ||
| BOP | Balance of Payments | Business | ||
| BOQ or BQ | Bill of Quantity | Procurement | ||
| BOS | Balance of System | Engineering | ||
| BPCD | Barrel Per Calendar Day | Operation | ||
| BPCS | Basic Process Control System | Engineering | ||
| BPED | Bipolar Electrodialysis | Engineering | ||
| BPSD | Barrel Per Stream Day | Operation | ||
| BRV | Body Relief Valve | Safety | ||
| BS&W | Bottom Sediment and Water | Technology | ||
| BSI | British Standards Institution | Quality | ||
| BTU | British Thermal Unit | Engineering | ||
| BTX | Benzene, Toluene and Xylene | Engineering | ||
| BWR | Boiling Water Reactor | Engineering | ||
| C&F | Cost and Freight | Procurement | ||
| CAA | Clean Air Act | Environment | ||
| CAB | Chemical Activity Barometer | Business | ||
| CAD | Computer-Aided Design | Engineering | ||
| CAFM | Computer-Aided Facility Management | Engineering | ||
| CAPA | Corrective Action/ Preventive Action | Quality | ||
| CAPEX | Capital Expenditure | Controls | ||
| CBB | Contract Budget Base | Controls | ||
| CBE | Commercial Bid Evaluation | Procurement | ||
| CBI | Condition Based Inspection | Operation | ||
| CBM | Coal Bed Methane | Engineering | ||
| CBS | Cost Breakdown Structure | Controls | ||
| CCA | Civil Contingencies Act | Business | ||
| CCC | Care, Custody, and Control | Construction | ||
| CCC | Customer Contact Centre | Business | ||
| CCF | Common Cause Failure | Safety | ||
| CCHP | Combined Cooling, Heat and Power | Engineering | ||
| CCPS | Center for Chemical Process Safety | Safety | ||
| CCS | Carbon Capture and Storage | Engineering | ||
| CCUS | Carbon Capture, Utilisation and Storage | Engineering | ||
| CD | Certificate of Deposit | Business | ||
| CDC | Centres for Disease Control and Prevention | Health | ||
| CDI | Capacitive Deionization | Technology | ||
| CDM | Construction, Design and Management Regulations | Construction | ||
| CDO | Chief Diversity Officer | Management | ||
| CDU | Crude Distillation Unit | Engineering | ||
| CES | Consumer Electronics Show | Business | ||
| CETA | Comprehensive Economic Trade Agreement | Business | ||
| CFC | Chlorofluorocarbon | Engineering | ||
| CFD | Contract for Difference | Management | ||
| CGIAR | formerly the Consultative Group for International Agricultural Research | Science | ||
| CGPM | General Conference on Weights and Measures | Engineering | ||
| CHOPS | Cold Heavy Oil Production with Sand | safety | ||
| CHP | Combined Heat and Power Plant | Engineering | ||
| CID | Capital Investment Decision | Business | ||
| CIF | Cost, Insurance, and Freight | Procurement | ||
| CII | Construction Industry Institute | Construction | ||
| CIM | The Chartered Institute of Marketing | Business | ||
| CIPM | International Committee for Weights and Measures | Engineering | ||
| CIPS | Chartered Institute of Procurement and Supply | Procurement | ||
| CIS | Commonwealth of Independent States | Business | ||
| CLSCC | Chloride Stress Corrosion Cracking | Technology | ||
| CME | Chicago Mercantile Exchange | Business | ||
| CMMS | Computerized Maintenance Management Systems | Operation | ||
| CNC | Computer Numerical Control | Technology | ||
| CNG | Compressed Natural Gas | Engineering | ||
| CO | Change Order | Management | ||
| COBIT | Control Objectives for Information and Related Technology | Engineering | ||
| COD | Chemical Oxygen Demand | Engineering | ||
| COF | Consequence of Failure | Management | ||
| COG | Centre of Gravity | Engineering | ||
| COI | Conflict of Interest | Management | ||
| COMAH | Control of Major Accident Hazards | Safety | ||
| COPQ | Cost of Poor Quality | Quality | ||
| CPAF | Cost Plus Award Fee | Management | ||
| CPC | Climate Prediction Center's | Environment | ||
| CPFF | Cost Plus Fixed Fee | Management | ||
| CPI | Consumer Price Index | Business | ||
| CPI | Corrugated Plate Interceptor | Engineering | ||
| CPI | Cost Performance Index | Business | ||
| CPIF | Cost Plus Incentive Fee | Management | ||
| CPM | Critical Path Method | Management | ||
| CPQRA | Chemical Process Quantitative Risk Assessment | Management | ||
| CPU | Central Processing Unit | Engineering | ||
| CPV | Concentrated PV | Technology | ||
| CRM | Client Relationship Management | Management | ||
| CRO | Contract Research Organization | Management | ||
| CRP | Conservation Reserve Program | Management | ||
| CRT | Cargo Retention Clauses | Procurement | ||
| CSA | Civil, Structural and Architectural (Engineering Discipline) | Engineering | ||
| CSI | Control Systems and Instrumentation (Engineering Discipline) | Engineering | ||
| CSP | Concentrated Solar Power | Engineering | ||
| CSR | Corporate Social Responsibility | Management | ||
| CSS | Cascading Style Sheets | Technology | ||
| CSST | Critical Steady State Temperature | Safety | ||
| CSTR | Continuous Stirred Tank Reactor | Engineering | ||
| CTD | Cumulative Trauma Disorder | Health | ||
| CV | Cost Variation | Management | ||
| CV | Curriculum Vitae | General | ||
| CVD | Chemical Vapor Deposition | Technology | ||
| CVID | Complete Verifiable Irreversible Denuclearization | General | ||
| CWA | Clean Water Act | Health | ||
| CWQC | Company-Wide Quality Control | Quality | ||
| D&D | Deactivation and Decommissioning | Operation | ||
| D/D | Door To Door | Procurement | ||
| DAQ | Data Acquisition System | Engineering | ||
| DB | Defined Benefit | Business | ||
| DBI | Design Basis Incident | Engineering | ||
| DC | Direct Current | Engineering | ||
| DC | Defined Contribution | Business | ||
| DCE | Data Communication Equipment | Engineering | ||
| DCF | Discounted Cash Flow | Controls | ||
| DCS | Distributed Control System | Engineering | ||
| DDC | Direct Digital Control | Engineering | ||
| DDoS | Distributed Denial of Service | Technology | ||
| DDR | Disaster Risk Reduction | Management | ||
| DDT | Dichlorodiphenyltrichloroethane | Technology | ||
| DE | Dose Equivalent | Engineering | ||
| DECC | Department of Energy & Climate Change | Environment | ||
| DER | Distributed Energy Resources | Technology | ||
| Df | Discount Factor | Business | ||
| DFC | Direct Field Costs | Controls | ||
| DHA | Dust Hazard Analysis | Environment | ||
| DJIA | Dow Jones Industrial Average | Business | ||
| DN | Nominal Diameter | Engineering | ||
| DNA | Deoxyribonucleic Acid | Technology | ||
| DOE | Department of Energy’s | Engineering | ||
| DoS | Denial of Service | Technology | ||
| DOS | Disk Operating System | Technology | ||
| DOT | Department of Transportation | Procurement | ||
| DPA | Data Protection Act | Management | ||
| DPC | Damp Proof Course | Construction | ||
| DPM | Damp Proof Membrane | Construction | ||
| DPMO | Defects per Million Opportunities | Safety | ||
| DPO | Domestic Processed Output | Business | ||
| DPU | Defects per Unit | Quality | ||
| DQT | Downward Quantity Tolerance | Quality | ||
| DSR | Debt Service Ratio | Business | ||
| DWT | Deadweight | Procurement | ||
| EA | Estimate Actual | Controls | ||
| EAC | Estimate at Completion | Controls | ||
| EAM | Enterprise Asset Management | Management | ||
| EAR | Erection All Risk (Insurance) | Management | ||
| EBIT | Earnings Before Interest and Taxes | Controls | ||
| EBITDA | Earnings Before Interest, Taxes, Depreciation, and Amortization | Controls | ||
| ECB | European Central Bank | Business | ||
| ECE | Extreme Climatic Event | Environment | ||
| ECHA | European Chemicals Agency | Engineering | ||
| ECI | Economic Complexity Index | Business | ||
| ECTS | Emergency Congestion Terminal Surcharge | Procurement | ||
| EDI | Electrodeionization | Technology | ||
| EDI | Electrodialysis | Technology | ||
| EDMS | Electronic Document Management System | Management | ||
| EEA | European Environment Agency | Environment | ||
| EEPG | Emergency Exposure Guideline Limits | Safety | ||
| EER | Energy Efficiency Ratio | Technology | ||
| EERA | Escape, Evacuation and Rescue Assessment | Safety | ||
| EERI | Earthquake Engineering Research Institute | Science | ||
| EEZ | Exclusive Economic Zone | Business | ||
| EF | Energy Factor | Engineering | ||
| EFET | European Federation of Energy Traders | Business | ||
| EFW | Electric Fusion Welded (Pipe) | Engineering | ||
| EI | Energy Institute | Business | ||
| EIA | Environmental Impact Assessment | Engineering | ||
| EIA | Energy Information Administration | Engineering | ||
| EIC | Energy Industries Council | Engineering | ||
| EM | Office of Environmental Management | Safety | ||
| EMF | Electromotive Force | Engineering | ||
| EMI | Electromagnetic Interference | Technology | ||
| EMP | Electromagnetic Pulse | Technology | ||
| ENVID | Environmental Identification | Engineering | ||
| EP | Engineering and Procurement | Management | ||
| EPA | US Environmental Protection Agency | Environment | ||
| EPC | Engineering, Procurement, Construction | Management | ||
| EPCI | Engineering, Procurement, Construction, Installation | Management | ||
| EPCM | Engineering, Procurement, and Construction Management | Management | ||
| EPS | Earnings per Share | Business | ||
| EPS | Emergency Power System | Engineering | ||
| EPS | Expanded Polystyrene | Engineering | ||
| ERP | Emergency Response Plan | Safety | ||
| ERP | Enterprise Resource Planning | Management | ||
| ERW | Electric Resistance Welded (Pipe) | Engineering | ||
| ESC | Electronic Speed Controller | Engineering | ||
| ESD | Emergency Shutdown | Safety | ||
| ESDV | Emergency Shut Down Valve | Engineering | ||
| ESMCP | Emergency Services Mobile Communications Programme | Safety | ||
| ESN | Emergency Services Network | Safety | ||
| ESSA | Emergency Systems Survivability Analysis | Safety | ||
| ET | Electric Tracing | Engineering | ||
| ET | Electromagnetic Testing | Quality | ||
| ETA | Estimated Time of Arrival | Construction | ||
| ETAP | Electrical Transient and Analysis Program | Engineering | ||
| ETBE | Ethyl Tertiary Butyl Ether | Technology | ||
| ETC | Estimate to Complete | Controls | ||
| EU | The European Union | Business | ||
| EULA | End-User License Agreement | Business | ||
| EURIBOR | Euro Interbank Offered Rate | Business | ||
| EV | Earned Value | Controls | ||
| EV | Electric Vehicle | General | ||
| EVM | Earned Value Management | Management | ||
| EVM | Ethereum Virtual Machine | Business | ||
| EVMS | Earned Value Management System | Management | ||
| F&G, FGG | Fire and Gas | Engineering | ||
| FA | Final Acceptance | Management | ||
| FAC | Final Acceptance Certificate | Management | ||
| FAFR | Fatal Accident Frequency Rate | Safety | ||
| FAME | Forecasting, Analysis and Modelling Environment | Controls | ||
| FAO | Food and Agriculture Organization of the United Nations | Health | ||
| FAR | Fatal Accident Rate | Safety | ||
| FAT | Factory Acceptance Test | Quality | ||
| FBC | Fluidized Bed Combustion | Engineering | ||
| FBD | Function Block Diagram | Engineering | ||
| FBR | Fast Breeder Reactor | Technology | ||
| FC&S | Free of Capture and Seizure | Procurement | ||
| FCA | Issued for Client Approval | Engineering | ||
| FCA | Financial Conduct Authority | Business | ||
| FCC | Fluid Catalytic Cracking | Engineering | ||
| FCR | Issued for Client Review | Engineering | ||
| FCU | Fan Coil Unit | Engineering | ||
| FDIC | Federal Deposit Insurance Corporation | Business | ||
| FDS | Functional Design Specification | Engineering | ||
| FEE | Front End Engineering | Engineering | ||
| FEED | Front End Engineering Design | Engineering | ||
| FEL | Front End Loading | Engineering | ||
| FEMP | Federal Energy Management Program | Engineering | ||
| FERA | Fire and Explosion Hazards Analysis | Safety | ||
| FERC | Federal Energy Regulatory Commission | Engineering | ||
| FF | Finish to Finish | Controls | ||
| FFVD | Final, Fully Verified Denuclearization | General | ||
| FHRS | Food Hygiene Rating Scheme | Health | ||
| FID | Final Investment Decision | Business | ||
| FIFO | First In First Out | General | ||
| FinTech | Financial Technology | Business | ||
| FLNG | Floating Liquefied Natural Gas | Technology | ||
| FLPS | Floating LNG Power Station | Procurement | ||
| FMA | First Mover Advantage | Business | ||
| FMCG | Fast Moving Consumer Goods | Business | ||
| FMD | Foot and Mouth Disease | Health | ||
| FMEA | Failure Modes and Effects Analysis | Operation | ||
| FMECA | Failure Modes, Effects and Criticality Analysis | Operation | ||
| FOB | Forward Osmosis | Engineering | ||
| FOB | Free on Board | Procurement | ||
| FPS | Foot, Pound, and Second | Engineering | ||
| FPSO | Floating Production, Storage and Offloading | Engineering | ||
| FRP | Fibreglass Reinforced Plastics | Engineering | ||
| FS | Finish to Start | Controls | ||
| FSRU | Floating Storage and Regasification Unit | Engineering | ||
| FTA | Fault Tree Analysis | Management | ||
| FTA | Free-Trade Agreement | Business | ||
| FTC | Function Test Check | Quality | ||
| FTP | File Transfer Protocol | Technology | ||
| GAAP | General Accepted Accounting Principles | Business | ||
| GATS | General Agreement on Trade in Services | Procurement | ||
| GATT | General Agreement on Tariffs and Trade | Business | ||
| GCC | Gulf Cooperation Council | Business | ||
| GDP | Gross Domestic Product | Business | ||
| GDSI | Gas Dispersion and Smoke Ingress Analysis | Safety | ||
| GEP | Good Engineering Practice | Management | ||
| GHG | Greenhouse Gas | Technology | ||
| GHS | Globally Harmonized System | Business | ||
| GIP | Good Industry Practice | Management | ||
| GIS | Global Industry Services | Management | ||
| GIS | Geographical Information System | Technology | ||
| GM | Genetic Modification | Health | ||
| G-Max | Guaranteed Maximum (Contract) | Controls | ||
| GMO | Genetically Modified Organism | Health | ||
| GMP | Cost Plus with Guaranteed Maximum Price (Contract) | Management | ||
| GNI | Gross National Income | Business | ||
| GNP | Gross National Product | Business | ||
| GOG | Gas-on-Gas Competition | Business | ||
| GOM | Gulf of Mexico | Business | ||
| GPA | Gas Processors Association | Engineering | ||
| GPR | Ground Penetrating Radar | Quality | ||
| GRC | Governance, Risk and Compliance | Management | ||
| GRE | Glass Reinforced Epoxy | Engineering | ||
| GRP | Glass Reinforced Plastics | Engineering | ||
| GSA | General Services Administration | Management | ||
| GSI | Global Standards Initiative | Quality | ||
| GTL | Gas to Liquid | Technology | ||
| GW | Guided Wave Testing | Quality | ||
| H&MB | Heat and Material Balance | Engineering | ||
| HAZID | Hazard Identification | Safety | ||
| HAZOP | Hazardous Operability | Safety | ||
| HCS | Hazard Communication Standard | Safety | ||
| HDL | High Density Lipoprotein | Safety | ||
| HELE | High Efficiency, Low Emissions | Environment | ||
| HESIA | Health, Safety and Environmental Impact Assessment | Safety | ||
| HEV | Hybrid Electric Vehicle | Technology | ||
| HF | Hydrofluoric Acid | Technology | ||
| HF | Hydrogen Fluoride | Technology | ||
| HFMD | Hand, Foot, and Mouth Disease | Health | ||
| HGO | Heavy Gas Oil | Technology | ||
| HGP | Human Genome Project | Engineering | ||
| HHS | Department of Health & Human Services | Health | ||
| HIC | Heat Index | Health | ||
| HIC | Hydrogen Induced Cracking | Engineering | ||
| HIRA | Hazard Identification and Risk Analysis | Safety | ||
| HIV | Human Immunodeficiency Virus | Health | ||
| HMI | Human Machine Interface | Engineering | ||
| HOA | Heads of Agreement | Management | ||
| HOU | Heavy Oil Upgrading | Engineering | ||
| HP | Horsepower | Engineering | ||
| HQ | Headquarter | General | ||
| HR | Human Resource | Management | ||
| HRA | Human Reliability Analysis | Management | ||
| HRM | Human Resource Management | Management | ||
| HRQOL | Health Related Quality of Life | Management | ||
| HS Code | Harmonized System or Harmonized Commodity Description and Coding System | Business | ||
| HSE, SHE, ESH | Health, Safety and Environmental | HSE | ||
| HSFO | High Sulphur Fuel Oil | Technology | ||
| HSPF | Heating Seasonal Performance Factor | Technology | ||
| HSSE | Health, Safety, Security and Environment | HSE | ||
| HTML | HyperText Markup Language | Technology | ||
| HVAC | Heating, Ventilating, and Air Conditioning | Engineering | ||
| HVGO | Heavy Vacuum Gas Oil | Technology | ||
| I/O | In/ Out (Instrument List) | Engineering | ||
| IAI | Istituto Affari Internazionali (Italy) | Business | ||
| IASB | International Accounting Standards Board | Controls | ||
| IATA | International Air Transportation Association | Procurement | ||
| IAU | International Astronomical Union | Technology | ||
| IBAN | International Bank Account Number | Business | ||
| IBIA | International Bunker Industry Association | Business | ||
| ICA | International Compliance Association | Management | ||
| ICC | International Chamber of Commerce | Management | ||
| ICD | Interface Control Drawing | Management | ||
| ICE | Intercontinental Exchange | Business | ||
| ICO | Information Commissioner's Office | Business | ||
| ICO | Initial Coin Offering | Business | ||
| ICRC | International Committee of the Red Cross | Health | ||
| ICS | Industrial Control System | Engineering | ||
| ICSID | International Centre for Settlement of Investment Disputes | Management | ||
| ICT | Information and Communication Technology | Management | ||
| ID | Inside Diameter | Engineering | ||
| ID | Identification | General | ||
| IEA | International Energy Agency | Engineering | ||
| IEC | International Electrotechnical Commission | Engineering | ||
| IED | Improvised Explosive Device | Engineering | ||
| IEEE | Institute of Electrical and Electronic Engineers | Engineering | ||
| IEF | International Energy Forum | Engineering | ||
| IET | Institution of Engineering and Technology | Engineering | ||
| IFA | Issued for Approval | Engineering | ||
| IFA | Institute for Occupational Safety and Health of the German Social Accident Insurance | HSE | ||
| IFAC | International Federation of Accountants | Business | ||
| IFC | Issued for Construction | Construction | ||
| IFC | Indirect Field Cost | Controls | ||
| IFC | International Finance Corporation | Business | ||
| IFD | Issued for Design | Engineering | ||
| IFH | Issued for HAZOP | Engineering | ||
| IFI | Issued for Information | Engineering | ||
| IFR | Issued for Review | Engineering | ||
| IFRC | The International Federation of Red Cross and Red Crescent Societies | Health | ||
| IFRS | International Financial Reporting Standards | Business | ||
| IFSB | Islamic Financial Services Board | Business | ||
| IGC Code | International Code of the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk | Engineering | ||
| IGCC | Integrated Gasification Combined Cycle | Technology | ||
| IGU | International Gas Union | Engineering | ||
| IHCP | Institute for Health and Consumer Protection | Health | ||
| IHMC | Institute for Human & Machine Cognition | Health | ||
| IHR | Institute of Historical Research | Management | ||
| IISD | International Institute for Sustainable Development | Management | ||
| ILO | International Labour Organization | Management | ||
| IM | Information Management | Management | ||
| IMF | International Monetary Fund | Business | ||
| IMO | The International Maritime Organization | Procurement | ||
| INGAA | Interstate Natural Gas Association of America | Engineering | ||
| IOC | International Olympic Committee | General | ||
| IOC | International Oil Company | Business | ||
| IOI | Indication of Interest | Business | ||
| IoT | Internet of things | Technology | ||
| IOY | I owe you | General | ||
| IP | Intellectual Property | Business | ||
| IP | Internet Protocol (Address) | Technology | ||
| IPCC | Intergovernmental Panel on Climate Change | Environment | ||
| IPE | International Petroleum Exchange | Business | ||
| IPIECA | International Petroleum Industry Environmental Conservation Association | Engineering | ||
| IPM | Intelligent Power Management | Management | ||
| IPO | Initial Public Offering | Management | ||
| IPP | Independent Power Plant | Engineering | ||
| IR | Thermal/Infrared Testing | Quality | ||
| IR | Infrared Radiation | Quality | ||
| IRCA | International Register of Certificated Auditors | Quality | ||
| IRENA | The International Renewable Energy Agency | Technology | ||
| IRR | Internal Rate of Return | Business | ||
| IRS | Interest Rate Swap | Business | ||
| IRT | Item Response Theory | Management | ||
| ISA | Intrinsic Safe | Safety | ||
| ISA | International Society of Automation | Engineering | ||
| ISACA | Information Systems Audit and Control Association | Quality | ||
| ISDS | Investor-State Dispute Settlement | Management | ||
| ISI | International Statistical Institute | Business | ||
| ISIN | International Securities Identification Number | Safety | ||
| ISM | Institue for Supply Management | Procurement | ||
| ISO | International Organisation for Standardisation | Quality | ||
| Iso | Isometric (Drawing) | Engineering | ||
| ISTQB | International Software Testing Qualifications Board | Technology | ||
| IT | Information Technology | Engineering | ||
| ITB | Invitation to Bid | Procurement | ||
| ITC | Inspection/ Test Check | Quality | ||
| ITO | International Trade Organization | Procurement | ||
| ITP | Inspection and Test Plan | Quality | ||
| ITPM | Inspection, Testing, and Preventive Maintenance | Quality | ||
| ITT | Invitation to Tender | Procurement | ||
| ITU | International Telecommunication Union | Technology | ||
| IUCN | International Union for Conservation of Nature | Environment | ||
| IUPAC | International Union of Pure and Applied Chemistry | Engineering | ||
| IVI | In-Vehicle Infotainment | Technology | ||
| IVI | International Vaccine Institute | Health | ||
| JCPOA | Joint Comprehensive Plan of Action | Management | ||
| JRC | Joint Research Centre | Technology | ||
| JV | Joint Venture (Company) | Business | ||
| K/O | Kick-Off (Meeting) | Management | ||
| KFS | Key Factor for Success | Management | ||
| KM | Knowledge Management | Management | ||
| KPI | Key Performance Indicator | Management | ||
| KRI | Key Risk Indicator | Management | ||
| KSAs | Knowledge, Skills, and Abilities | Management | ||
| KTT | Kinetic Tree Theory | Management | ||
| L/C | Letter of Credit | Procurement | ||
| LASH | Lighter Aboard Ship | Procurement | ||
| LCA | Life Cycle Assessment | Operation | ||
| LCA | Lethal Concentration | Safety | ||
| LCCA | Life Cycle Cost Analysis | Management | ||
| LCOE | Levelized Cost of Energy | Business | ||
| LDL | Low Density Lipoprotein | Safety | ||
| LEC | Levelized Energy Cost | Business | ||
| LET | Linear Energy Transfer | Technology | ||
| LEU | Low Enriched Uranium | Technology | ||
| LGO | Light Gas Oil | Engineering | ||
| LIGO | Laser Interferometer Gravitational-Wave Observatory | Engineering | ||
| LILO | Liner In / Liner Out | Procurement | ||
| LL | Lessons Learned | Management | ||
| LM | Laser Testing Methods | Quality | ||
| LMC | Liquid Metal Cracking | Technology | ||
| LNG | Liquefied Natural Gas | Engineering | ||
| LO/LO | Lift On/ Lift Off | Procurement | ||
| LOC | Limiting Oxidant Concentration | Technology | ||
| LOI | Letter of Intent | Procurement | ||
| LOI | Letter of Indemnity | Business | ||
| LOLP | Loss of Load Probability | Safety | ||
| LOPA | Layers of Protection Analysis | Operation | ||
| LPG | Liquefied Petroleum Gas | Technology | ||
| LRG | Liquefied Refinery Gases | Technology | ||
| LSC | LIGO Scientific Collaboration | Environment | ||
| LSFO | Low Sulphur Fuel Oil | Technology | ||
| LSTK | Lump Sum Turnkey (Contract) | Management | ||
| LTA | Long Term Agreement (Contract) | Management | ||
| LTI | Loss Time Injury | Safety | ||
| LTIFR | Loss Time Injury Frequency Rate | Safety | ||
| LTIIR | Lost Time Injury Incidence Rate | Safety | ||
| LVC | Low Voltage Cutoff | Technology | ||
| LVD | Low Voltage Disconnect | Engineering | ||
| M&A | Mergers and Acquisitions | Business | ||
| M/C | Mechanical Completion | Construction | ||
| M2M | Machine to Machine | Business | ||
| MAC | Main Automation Contractor | Engineering | ||
| MAC | Maximum Allowable Concentration | Technology | ||
| MAOP | Maximum Allowable Operating Pressure | Engineering | ||
| MAWP | Maximum Allowable Working Pressure | Engineering | ||
| MCC | Mechanical Completion Certificate | Management | ||
| McF | Thousand Cubic Feet | Technology | ||
| MDI | Methylene Diphenyl Diisocyanate | Technology | ||
| MDS | Middle Distillate Synthesis | Technology | ||
| MEC | Main Electrical Contractor | Engineering | ||
| MERS | Middle East Respiratory Syndrome | Health | ||
| MF | Microfiltration Membrane | Engineering | ||
| MFA | Material Flow Analysis | Business | ||
| MFD | Mass Flow Diagram | Engineering | ||
| MFL | Magnetic Flux Leakage | Quality | ||
| MIS | Management Information System | Management | ||
| MKS | Metre, Kilogramme, and Second (Unit) | Engineering | ||
| MMAS | Material Management and Accounting System | Management | ||
| MMI | Man Machine Interface | Engineering | ||
| MNDT | Microwave Nondestructive Testing | Quality | ||
| MOM | Minutes of Meeting (Notes) | Management | ||
| MOV | Motor Operated Valve | Engineering | ||
| MPC | Maximum Permissible Concentration | Engineering | ||
| MR | Material Requisition | Procurement | ||
| MR | Management Reserve | Management | ||
| MRC | Material Related Cost | Procurement | ||
| MRI | Magnetic Resonance Imaging | Technology | ||
| MRS | Magnetic Resonance Spectroscopy | Technology | ||
| MSD | Material Selection Diagram | Engineering | ||
| MSDS | Material Safety Data Sheet | Safety | ||
| MSL | Mean Sea Level | Engineering | ||
| MT/ MPT | Magnetic Particle Testing | Quality | ||
| MTBE | Methyl Tertiary Butyl Ether | Technology | ||
| MTC | Medical Treatment Case | Safety | ||
| MTI | Medical Treatment Injuries | Safety | ||
| MTO | Material Take-Off | Engineering | ||
| MTTF | Mean Time To Failure | Operation | ||
| NACE | National Association of Corrosion Engineers | Engineering | ||
| NAFTA | North American Free Trade Agreement | Business | ||
| NB | Nominal Bore | Engineering | ||
| NC | Non-conformance | Construction | ||
| NCEI | National Centers for Environmental Information | Environment | ||
| NCI | National Cancer Institute | Health | ||
| NCND | Non Circumvention Non Disclosure | Management | ||
| NDA | Non Disclosure Agreement | General | ||
| NDA | Nuclear Decommissioning Authority | Technology | ||
| NDE | Non Destructive Examination | Quality | ||
| NDT | Non Destructive Test | Quality | ||
| NEC | National Electric Code | Engineering | ||
| NEI | Neclear Energy Institute | Engineering | ||
| NEMA | National Electrical Manufacturers Association | Engineering | ||
| NET | Netback from Final Product | Engineering | ||
| NF | Nanofiltration Membrane | Engineering | ||
| NFPA | The National Fire Protection Association | Safety | ||
| NGL | Natural Gas Liquid | Technology | ||
| NGNG | No guts no glory | Technology | ||
| NGO | Non-Governmental Organization | General | ||
| NGSA | Natural Gas Supply Association | Business | ||
| NGVD | National Geodetic Vertical Datum | Environment | ||
| NHGRI | National Human Genome Research Institute | Engineering | ||
| NHV | Net (Lower) Heating Value | Technology | ||
| NIA | Nuclear Industry Association | Technology | ||
| NIST | National Institute of Standards and Technology | Quality | ||
| NNI | Net National Income | Business | ||
| NOAA | National Oceanic and Atmospheric Administration | Environment | ||
| NOC | National Oil Company | Business | ||
| NOC | Notice of Contravention | Management | ||
| NP | No Price | Business | ||
| NPP | Nuclear Power Plant | Engineering | ||
| NPS | Nominal Pipe Size | Engineering | ||
| NPSH | Net Positive Suction Head | Engineering | ||
| NPT | National Pipe Thread | Engineering | ||
| NPV | Net Present Value | Business | ||
| NR | Neutron Radiographic Testing | Quality | ||
| NRC | Nuclear Regulatory Commission | Technology | ||
| NRECA | National Rural Electric Cooperative Association | Engineering | ||
| NT | Net Tonnage | Technology | ||
| NTE | Not to Exceed (Contract) | Management | ||
| NVA | Non Value Added | Business | ||
| NYMEX | New York Mercantile Exchange | Business | ||
| NYSE | New York Stock Exchange | Business | ||
| OA | Office Automation | Engineering | ||
| OBS | Organization Breakdown Structure | Management | ||
| OCGT | Open Cycle Gas Turbine | Engineering | ||
| OD | Outside Diameter | Engineering | ||
| OECD | Organization for Economic Cooperation and Development | Business | ||
| OEM | Original Equipment Manufacturer | Procurement | ||
| OGLV | Operating Gas Lift Valve | Technology | ||
| OIS | Office Information System | Management | ||
| OOA | Object Oriented Approach | Management | ||
| OOA | Object‐Oriented Analysis | Management | ||
| OOP | Object Oriented Programming | Management | ||
| OPE | Oil Price Escalation | Business | ||
| OPEC | Organization of the Petroleum Exporting Countries | Business | ||
| OPEX | Operational Expenditure | Business | ||
| OPRG | Oxygenated Fuels Program Reformulated | Technology | ||
| ORB | OPEC Reference Basket | Business | ||
| OS&D | Overage, Shortage and Damage | Construction | ||
| OSB | Oriented Strand Board | Construction | ||
| OSHA | Occupational Safety and Health Administration | Safety | ||
| OTB | Over Target Baseline | Management | ||
| OTC | Open, Transparent, Connected (Markets) | Business | ||
| OTEC | Ocean Thermal Energy Conversion | Engineering | ||
| OTS | Operator Training Simulator | Engineering | ||
| OTS | Over Target Schedule | Management | ||
| OVHD | Overhead (Cost) | Controls | ||
| OWS | Oily Water System | Engineering | ||
| P&I Clubs | Protection and Indemnity Club | Business | ||
| P&ID | Piping & Instrument Diagram | Engineering | ||
| PA | Provisional Acceptance | Management | ||
| PAB | Pre-Assembled Building | Engineering | ||
| PAC | Programmable Automation Controller | Engineering | ||
| PAC | Provisional Acceptance Certificate | Management | ||
| PADD | Petroleum Administration for Defense District | Engineering | ||
| PAH | Polycyclic Aromatic Hydrocarbon | Technology | ||
| PAR | Pre-Assembled Rack (Pipe Rack) | Engineering | ||
| PAU | Pre-Assembled Unit (Process or Utility Facility) | Engineering | ||
| PAYG | Pay as you go | Business | ||
| PBO | Projected Benefit Obligation | Business | ||
| PCA | Principal Component Analysis | Business | ||
| PCI | Product Complexity Index | Business | ||
| PCS | Pre-commissioning | Construction | ||
| PCS | Process Control System | Engineering | ||
| PD | Project Director | General | ||
| PDH | Propane Dehydrogenation | Technology | ||
| PDP | Process Design Package | Engineering | ||
| PDRI | Project Definition Rating Index | Management | ||
| PE | Professional Engineer | General | ||
| PED | Pressure Equipment Directive (97/23/EC) | Engineering | ||
| PEP | Project Execution Procedure | Management | ||
| PERT | Program Evaluation Review Technique | Controls | ||
| PES | Programmable Electronic System | Engineering | ||
| PET | Polyester | Technology | ||
| PFD | Process Flow Diagram | Engineering | ||
| PFD | Portable Document Format | General | ||
| PFP | Passive Fire Protection System | Safety | ||
| PHA | Process Hazard Analysis | Safety | ||
| PHC | Project Health Check | Management | ||
| PHEIC | Public Health Emergencies of International Concern | Health | ||
| PHEV | Plug-in Hybrid Electric Vehicles | Technology | ||
| PHMSA | Pipeline and Hazardous Materials Safety Administration | Safety | ||
| PHP | Hypertext Preprocessor | Technology | ||
| PI | Profitability Index | Management | ||
| PIM | Pre Inspection Meeting | Procurement | ||
| PLC | Programmable Logic Controller | Engineering | ||
| PLC | Private Limited Company | Business | ||
| PLM | Product Lifecycle Management | Management | ||
| PM | Particulate Matter | Management | ||
| PM | Project Manager | General | ||
| PM | Preventative Maintenance | Operation | ||
| PMA | Federal Power Marketing Administrations | Business | ||
| PMC | Project Management Consultant | Management | ||
| PMI | Purchasing Manager’s Index | Procurement | ||
| PMS | Power Management Solutions | Engineering | ||
| PO | Purchase Order | Procurement | ||
| POF | Probability of Failure | Management | ||
| POPs | Persistent Organic Pollutants | Safety | ||
| PPE | Personal Protection Equipment | Safety | ||
| ppm | Parts per Million | Technology | ||
| PPP | Public Private Partnership | Business | ||
| PPP | Purchasing Power Parity | Business | ||
| PQ | Pre-Qualification | Procurement | ||
| PR | Public Relations | General | ||
| PRA | Prudential Regulation Authority | Management | ||
| PRCI | Pipeline Research Council International | Engineering | ||
| PRINCE2 | PRojects IN Controlled Environments | Management | ||
| PS | Performance Standard | Quality | ||
| PSC | Production Sharing Contract | Management | ||
| PSD | Particle-Size Distribution | Environment | ||
| PSDS | Product Safety Data Sheet | Engineering | ||
| PSI | Pounds per square Inch (Unit) | Engineering | ||
| PSI | Process Safety Information | Safety | ||
| PSM | Process Safety Management | Management | ||
| PSO | Public Service Obligation | General | ||
| PSV | Pressure Relief Valve (or Pressure Safety Valve) | Engineering | ||
| PT | Liquid Penetrant Testing | Quality | ||
| PTFE | Polytetrafluoroethylene (Teflon) | Technology | ||
| PV | Photovotaic | Engineering | ||
| PV | Present Value | Business | ||
| PVD | Physical Vapor Deposition | Safety | ||
| PWC | Preferential Weld Corrosion | Quality | ||
| PWHT | Post Weld Heat Treatment | Quality | ||
| PWM | Pulse Width Modulated | Technology | ||
| QA | Quality Assurance | Quality | ||
| QC | Quality Control | Quality | ||
| QE | Quantum Efficiency | Technology | ||
| QMS | Quality Management System | Quality | ||
| QOL | Quality of Life | Quality | ||
| QR Code | Quick Response Code | Quality | ||
| QRA | Quantitative Risk Assessment | Engineering | ||
| QS | Quantity Survey | Quality | ||
| R&A | Removal and Abandonment | Business | ||
| R&R | Role and Responsibility | Management | ||
| R&R | Repeatability and Reproducibility | Management | ||
| R.v | Regina versus | Management | ||
| RAM | Responsibility Assignment Matrix | Management | ||
| RAM | Reliability, Availability and Maintainability (Study) | Operation | ||
| RAS | Required At Site | Controls | ||
| RBC | Regulation: Below Cost | Engineering | ||
| RBI | Risk Based Inspection | Quality | ||
| RBOE | Reformulated Gasoline Blendstock for Oxygenate Blending | Technology | ||
| RC | Reinforced Concrete | Construction | ||
| RCA | Root Cause Analysis | Quality | ||
| RCEP | Regional Comprehensive Economic Partnership | Business | ||
| RCM | Reliability Centered Maintenance | Operation | ||
| RCS | Regulation: Cost of Service | Business | ||
| REE | Rare Earth Elements | Science | ||
| REM | Roentgen Equivalent Man | Technology | ||
| RESNET | Residential Energy Services Network | Business | ||
| RFI | Radio Frequency Interference | Engineering | ||
| RFID | Radio Frequency Identification | Engineering | ||
| RFSU | Ready for Start-up | Operation | ||
| RIT | Reaction Induction Time | Engineering | ||
| RMP | Risk Management Plan | Management | ||
| RMP | Risk Management Program | Management | ||
| RMS | Root Mean Square | General | ||
| RMSE | Root Mean Square Error | General | ||
| RNA | Ribonucleic Acid | Technology | ||
| RO | Reverse Osmosis | Engineering | ||
| RO/RO | Roll-on/Roll-off | Procurement | ||
| ROI | Return On Investment | Business | ||
| ROM | Reliability Operability Maintenance | Operation | ||
| ROM | Rough Order of Magnitude (Estimate) | Controls | ||
| RP | Received Pronunciation (English) | General | ||
| RPE | Respiratory Protective Equipment | Health | ||
| RSP | Regulation: Social and Political | Engineering | ||
| RT | Radiographic Testing | Quality | ||
| RTU | Remote Terminal Unit | Engineering | ||
| S.O.S | Save Our Ship, Save Our Souls, or Send Out Succour | General | ||
| SADT | Structured Analysis and Design Technique | Engineering | ||
| SADT | Self-Accelerating Decomposition Temperature | Engineering | ||
| SAP | SAP was German: System, Anwendungen, Product | Business | ||
| SAT | Site Acceptance Test | Quality | ||
| SATP | Standard Ambient Temperature and Pressure | Engineering | ||
| SC | Supply Chain | Procurement | ||
| SCADA | Supervisory Control and Data Acquisition | Engineering | ||
| SCC | Stress Corrosion Cracking | Technology | ||
| SCES | Safety Critical Elements | Safety | ||
| SCM | Supply Chain Management | Procurement | ||
| SDS | Safety Data Sheet | Safety | ||
| SDS | Sustainable Development Scenario | Business | ||
| SDWA | Safe Drinking Water Act | Health | ||
| SEER | Seasonal Energy Efficiency Ratio | Engineering | ||
| SEIA | Solar Energy Industries Association | Technology | ||
| SERI | Solar Energy Research Institute | Technology | ||
| SF | Start to Finish | Controls | ||
| SFAIRP | So far as is Reasonably Practicable | General | ||
| SI | International System (Unit) | Engineering | ||
| SIF | Safety Instrumented Function | Safety | ||
| SIH | Satellite Instrument House | Engineering | ||
| SIL | Safety Integrity Level | Engineering | ||
| SIMOPS | Simultaneous Operations | Operation | ||
| SIS | Safety Instrumented System | Engineering | ||
| SLD | Single Line Diagram | Engineering | ||
| SMEs | Small and Medium-sized Enterprises | Business | ||
| SMES | Superconducting Magnetic Energy Storage | Technology | ||
| SMR | Small Modular Reactor | Technology | ||
| SN | Satellite Navigation | Technology | ||
| SNF | Spent Nuclear Fuel | Technology | ||
| SNG | Synthetic Natural Gas | Technology | ||
| SNS | Social Networking Service | General | ||
| SOC | Standard Occupational Classification System | General | ||
| SOC | State of Charge | Business | ||
| SOC | Social Overhead Capital | Business | ||
| SOF | Scope of Facility | Management | ||
| SOP | Standard Operation Procedure | Operation | ||
| SOS | Scope of Service | Management | ||
| SOW | Scope of Work | Management | ||
| SPC | Statistical Process Control | Quality | ||
| SPE | Society of Petroleum Engineers | Engineering | ||
| SPMT | Self-Propelled Modular Transporter | Procurement | ||
| SPS | Satellite Power System | Technology | ||
| SQC | Statistical Quality Control | Quality | ||
| SR&CC | Strikes, Riots and Civil Commotions | Procurement | ||
| SS | Start to Start | Controls | ||
| SSC | Sulfide Stress Cracking | Technology | ||
| SSS | Securities Settlement System | Safety | ||
| SSSV | Subsurface Safety Valve | Engineering | ||
| STC | Standard Test Conditions | Engineering | ||
| STC | Said to Contain | General | ||
| STEM | Science, Technology, Engineering, and Mathematics | General | ||
| STL | STereoLithography or Standard Triangle Language | Technology | ||
| STP | Standard Temperature and Pressure | Engineering | ||
| STP | Straight Through Processing | Engineering | ||
| SV | Schedule Variance | Management | ||
| SVA | Security Vulnerability Analysis | Safety | ||
| SWOT | Strengths, Weaknesses, Opportunities and Threats | Management | ||
| T&C | Term and Condition (Contract Document) | Management | ||
| T&D | Transmission and Distribution | General | ||
| TAM | Turnaround Maintenance | Operation | ||
| TAME | Tertiary Amyl Methyl Ether | Technology | ||
| TBA | To be Assigned | General | ||
| TBA | Tertiary Butyl Alcohol | Technology | ||
| TBD | To be Determined | General | ||
| TBE | Technical Bid Evaluation | Procurement | ||
| TBM | Tunnel Boring Machine | Construction | ||
| TCO | Transparent Conducting Oxide | Technology | ||
| TCP/IP | Internet Protocol Suite | Technology | ||
| TDI | Toluene Diisocyanate | Technology | ||
| TDI | Tolerable Daily Intake | Business | ||
| TDS | Total Dissolved Solid | Technology | ||
| TEMA | Tubular Exchanger Manufacturers Association | Engineering | ||
| TEU | Twenty Foot Equivalent Unit | Procurement | ||
| TF | Task Force | Management | ||
| TFPV | Thin-Film Photovoltaic Cells | Technology | ||
| TFSC | Thin-Film Solar Cell | Technology | ||
| THAAD | Terminal High Altitude Area Defense | General | ||
| ThePD MAP | The Project Definition Map | Management | ||
| TIC | Total Investment Cost | Controls | ||
| TMI | Too Much Information | Management | ||
| TMO | Television Match Official | General | ||
| TNT | Trinitrotoluene, | Technology | ||
| TOS | Terms of Service | Management | ||
| TOU | Terms of Use | Management | ||
| TOU | Time of Use | Management | ||
| TPI | Third Party Inspection | Management | ||
| TPP | Trans-Pacific Partnership | Business | ||
| TPPA | Trans Pacific Partnership Agreement | Business | ||
| TQC | Total Quality Control | Quality | ||
| TQM | Total Quality Management | Quality | ||
| TR | Transformer (Electrical) | Engineering | ||
| TRIA | Temporary Refuge Integrity Analysis | Technology | ||
| TRIA | Terrorism Risk Insurance Act | Safety | ||
| U&O | Utility and Offsite | Engineering | ||
| UAT | User Acceptance Test | Quality | ||
| UBO | Ultimate Beneficial Owner | Business | ||
| UCC | Universal Copyright Convention | Management | ||
| UDD | Utility Distribution Diagram | Engineering | ||
| UEF | United Engineering Foundation Inc. | Engineering | ||
| UF | Underground Feeder | Engineering | ||
| UF | Ultrafiltration Membrane | Engineering | ||
| UHD | Utility Head Diagram | Engineering | ||
| UKCS | UK Continental Shelf | Technology | ||
| ULSFO | Ultra Low Sulfur Fuel Oil | Technology | ||
| UN | United Nations | General | ||
| UNEP | United Nations Environment Programme | Environment | ||
| UNESCO | United Nations Educational, Scientific and Cultural Organization | General | ||
| UNFCCC | United Nations Framework Convention on Climate Change | Environment | ||
| UNIDO | United Nations Industrial Development Organization | Business | ||
| URS | User Requirement Specification | Engineering | ||
| USGS | United States Geological Survey | Environment | ||
| USPA | U.S. Postal Service | General | ||
| USR | User System Requirement | Engineering | ||
| USTR | U.S. Trade Representative | Business | ||
| UT | Ultrasonic Test | Quality | ||
| UV | Ultraviolet | Technology | ||
| VA | Vibration Analysis | Quality | ||
| VAC | Variance at Completion | Controls | ||
| VAT | Value Added Tax | Controls | ||
| VAU | Vendor Assembled Unit | Engineering | ||
| VCE | Vapor Cloud Explosion | Safety | ||
| VDU | Vacuum Distillation Unit | Technology | ||
| VFD | Variable Frequency Drive | Engineering | ||
| VGO | Vacuum Gas Oil | Technology | ||
| VI | Visual Inspection | Quality | ||
| Vmp | Voltage at Maximum Power | Technology | ||
| VOC | Volatile Organic Compounds | Technology | ||
| VOC | Voice of Complain | Management | ||
| VOC | Voice of the Customer | Management | ||
| VRA | Voluntary Restraint Arrangement | Technology | ||
| VRU | Vapour Recovery Unit | Engineering | ||
| VSD | Variable Speed Drive | Engineering | ||
| VT | Visual Testing | Quality | ||
| VVVF | Variable Voltage and Variable Frequency | Engineering | ||
| VX | O-ethyl S-[2-(diisopropylamino)ethyl] methylphosphonothioate | Technology | ||
| WBS | Work Breakdown Structure | Management | ||
| WC | Working Capital | Business | ||
| WCC | Working Capital Cost | Business | ||
| WCO | World Customs Organisation | Procurement | ||
| WCS | Worst-Case Scenario | Management | ||
| WEC | World Energy Council | Engineering | ||
| WEELs | Workplace Environmental Exposure Levels | Environment | ||
| WERA | Working Ergonomic Risk Assessment | Management | ||
| WET | Wireless Energy Transfer | Engineering | ||
| WHO | World Health Organization | Health | ||
| WHRU | Waste Heat Recovery Unit | Engineering | ||
| WIPO | World Intellectual Property Organisation | Business | ||
| WMO | World Meteorological Organization | Environment | ||
| WMS | Warehouse Management System | Procurement | ||
| WNA | World Nuclear Association | Engineering | ||
| WoV | Window of Vulnerability | Technology | ||
| WP | Work Package | Construction | ||
| WPC | World Petroleum Council | Engineering | ||
| WPT | Wireless Power Transfer | Engineering | ||
| WTI | West Texas Intermediate | Technology | ||
| WTO | World Trade Organization | Business | ||
| WWF | World Wide Fund for Nature | Environment | ||
| WWTU | Waste Water Treatment Unit | Engineering | ||
| www | World Wide Web | Technology | ||
| XPS | Extruded Polystyrene | Engineering | ||
| ZBA | Zero Balance Account | Business | ||
| ZEB | Zero Energy Building | Technology | ||
| ZIP | Zone Improvement Plan | General | ||
| ZPG | Zero Population Growth | Business |