| ACRONYM | | Organization |
| ACEX |  | Arctic Coring Expedition |
| ACH |  | Automated Clearing House |
| AESTO |  | Advanced Earth Science and Technology Organization (Japan) |
| AGI |  | American Geophysical Institute |
| AGU |  | American Geophysical Union |
| AOGS |  | Asia-Oceana Geosciences Society |
| APC |  | Advanced Piston Core |
| APCT | | APC Temperature Tool |
| API |  | American Petroleum Institute |
| APP |  | Annual Program Plan |
| BCR |  | Bremen Core Repository |
| BGS |  | British Geological Survey |
| BHA |  | Bottom Hole Assembly |
| BoG |  | Board of Governors |
| BP |  | Before Present |
| BSR |  | Bottom Simulator Reflector |
| CB-RMM |  | Core barrel - retrievable memory module |
| CCD |  | Carbonate Compensation Depth |
| CDEX |  | Center for Deep Earth Exploration |
| CDP |  | Complex Drilling Projects |
| CMCR |  | Center for Advanced Marine Core Research (Kochi University) |
| CMO |  | Central Management Office |
| CNRS |  | Centre National de la Research Scientific (France) |
| CO |  | Contracts Officer |
| COI |  | Conflict of Interest |
| CORK |  | Circulation Obviation Retrofit Kit |
| DIS |  | ICDP Drilling Information System |
| DMS |  | Data Management Specialist |
| DP |  | Dynamic Positioning |
| DPG |  | Detailed Planning Group |
| DSDP |  | Deep Sea Drilling Project |
| DSS |  | Drilling Sensor Sub |
| DVTP |  | Davis-Villinger Temperature Probe |
| E&O |  | Education and Outreach |
| ECORD |  | European Consortium for Ocean Drilling Research |
| ECORD-net |  | E.C. Research Area Network |
| EDP |  | Engineering Development Panel |
| EGU |  | European Geosciences Union |
| EMA |  | ECORD Management Agency |
| EOR |  | Expedition Objective Research |
| EPC |  | European Petrophysical Consortium |
| EPSP |  | Environmental Protection and Safety Panel |
| ESO |  | ECORD Science Operator |
| ESSAC |  | ECORD Science Support and Advisory Committee |
| ESSEP |  | Environmental Science Steering and Evaluation Panel |
| ETF |  | Engineering Task Force |
| FMS |  | Formation Micro Scanner |
| FY |  | Fiscal Year |
| GCR |  | Gulf Coast Repository |
| GIS |  | Geographic Information Systems |
| HSE |  | Health, Safety and Environment |
| ICDP |  | International Continental Scientific Drilling Program |
| IFREE |  | Institute for Frontier Research on Earth Evolution |
| IIS-PPG |  | Industry-IODP Science Program Planning Group |
| ILP |  | Industry Liaison Panel |
| IO(s) |  | Implementing Organization(s) |
| IODP |  | Integrated Ocean Drilling Program |
| IODP-MI |  | Integrated Ocean Drilling Program Management International, Inc. |
| ION |  | International Ocean Network |
| iSAS |  | Interim Science Advisory Structure |
| ISC |  | Information Service Center |
| ISP |  | Initial Science Plan |
| ISSEP |  | Interior Science Steering and Evaluation Panel |
| JAMSTEC |  | Japan Agency for Marine-Earth Science and Technology |
| JANUS |  | USIO Database System |
| J-CORES |  | Japanese Database System |
| J-DESC |  | Japan Drilling Earth Science Consortium |
| JOI |  | Joint Oceanographic Institutions, Inc. |
| JOI Alliance |  | USIO: Consists of JOI, LDEO, and TAMU |
| JOIDES |  | Joint Oceanographic Institutions for Deep Earth Sampling |
| JPIO |  | Japan Implementing Organization |
| KCC |  | Kochi Core Center Repository |
| KIGAM |  | Korea Institute of Geoscience and Mineral Resources |
| kt |  | knots | |
| LDEO |  | Lamont-Doherty Earth Observatory |
| LGHF |  | Laboratoire de Géophsique et Hydrodynamique en Forage |
| LGM |  | Last Glacial Maximum |
| LTBMS |  | Long-Term Borehole Monitoring System |
| LUBR |  | Leicester University Borehole Group |
| LWC |  | Logging while Coring |
| LWD |  | Logging while Drilling |
| m |  | meters | |
| MAT |  | Mid-Atlantic Transect |
| mbsf |  | meters below sea floor |
| MCS |  | Multi Channel Seismic |
| MEXT |  | Ministry of Education, Culture, Sports, Science, and Technology (Japan) |
| MOST |  | Ministry of Science and Technology (People's Rep. of China) |
| msb |  | meters sub-basement |
| MSP |  | Mission Specific Platform |
| NanTroSEIZE |  | Nankai Trough Seismogenic Zone Experiment |
| NERC |  | Natural Environment Research Council (UK) |
| NERC |  | National Environmental Research Council |
| nmi |  | nautical miles |
| NSF |  | National Science Foundation (USA) |
| OCC |  | Oceanic Core Complex |
| OCE |  | Division of Ocean Sciences, NSF |
| ODP |  | Ocean Drilling Program |
| OOI |  | Ocean Observing Initiative |
| OPCOM |  | Operations Committee (now Operations Task Force) |
| ORI |  | Ocean Research Institute |
| ORION |  | Ocean Research Interactive Observatory Networks |
| OTF |  | Operations Task Force |
| PCS |  | Pressure Core Sampler |
| PI |  | Primary Investigator |
| PMO |  | Program Member Offices |
| PMT |  | Project Management Team |
| POC |  | Platform Operations Costs |
| PSDIM |  | Publications, Sample and Data Integration manager |
| PSG |  | Project Scoping Group |
| PTM |  | Pulsed Telemetry Module |
| QAQC |  | Quality Assurance Quality Control |
| RCB |  | Rotary Core Barrel |
| RFP |  | Request for Proposal |
| RIS |  | Rig Instrumentation System |
| RMM |  | Retrievable Memory Module |
| SAS |  | Science Advisory Structure |
| SAS |  | Science Advisorary Structure |
| SASEC |  | SAS Executive Committee |
| SASEC |  | Science Advisory Executive Committee |
| SciMP |  | Scientific Measurements Panel (in ODP) |
| SDSC |  | San Diego Super Computer Center |
| SEDIS |  | Scientific Earth Drilling Information System |
| SIO |  | Scripps Institution of Oceanography |
| SIT |  | Systems Integrated Training |
| SMCS |  | Sample Materials Curation Management System |
| SOC |  | Science Operating Costs |
| SODV |  | Scientific Ocean Drilling Vessel |
| SPC |  | Science Planning Committee |
| SPPOC |  | Science Planning and Policy Oversight Committee (operated up until April, 2006) |
| SRMs |  | Standard Reference Materials |
| SSDB |  | Site Survey Data Bank |
| SSEP |  | Science Steering and Evaluation Panel |
| SSP |  | Site Survey Panel |
| STP |  | Scientific Technology Panel |
| TAMU |  | Texas A&M University |
| TAP |  | Technology Advice Panel |
| TD |  | Total Depth |
| TOB |  | Torque on bit |
| UBI |  | Ultra Borehole Imager |
| USAC |  | U.S. Advisory Committee for Scientific Ocean Drilling |
| USGS |  | U.S. Geological Survey |
| USIO |  | United States Implementing Organization |
| USSAC |  | United States Science Advisory Committee |
| USSSP |  | U.S. Science Support Program |
| VP-SO |  | Vice President for Science Operations |
| VP-SP |  | Vice President for Science Planning |
| VSP |  | Vertical Seismic Profile |
| WBE |  | Work Breakdown Elements |
| WDC |  | World Data Center |
| WOB |  | Weight on bit |
| WST |  | Well Seismic Tool |
| XCB |  | Extended Core Barrel |