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| AAW | Anti-Air Warfare |
| ACAT | Acquisition Category |
| ACDS | Advanced Combat Direction System |
| ACMC | Assistant Commandant, U.S. Marine Corps |
| ACTD | Advanced Concept Technology Demonstration |
| ADCX | Auxiliary Dry Cargo Ship (New Design) |
| ADCAP | Advanced Capability |
| ADM | Acquisition Decision Memorandum |
| ADS | Advanced Deployable System |
| AFOE | Assault Follow-On Echelon |
| AGOR | Auxiliary General Oceanographic Research [Ship] |
| AGS | Advanced Gun Systems |
| AIEWS | Advanced Integrated Electronic Warfare System |
| AIP | Anti-surface Warfare Improvement Program |
| ALFS | Airborne Low Frequency Sonar |
| ALMDS | Airborne Laser Mine Detection System |
| AMCM | Airborne Mine Countermeasures |
| AMRAAM | Advanced Medium Range Air-to-Air Missile |
| AOA | Analysis of Alternatives, also Amphibious Objective Area |
| ARBS | Angle Rate Bombing System |
| ARG | Amphibious Ready Group |
| ASDS | Advanced Swimmer Deliver System |
| ASCM | Anti-Ship Cruise Missile |
| ASM | Anti-Ship Missile |
| ASTOVL | Advanced Short Take-Off and Vertical Landing |
| ASUW | Anti-Surface Warfare |
| ASW | Anti-Submarine Warfare |
| ATACMS | Army Tactical Missile System |
| ATARS | Advanced Tactical Air Reconnaissance System |
| ATWCS | Advanced Tomahawk Weapon Control System |
| AWACS | Airborne Warning And Control System |
| AWS | Aegis Weapon System |
| SPACING | |
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| BAH | Basic Allowance for Housing |
| BAT | Brilliant Anti-Tank |
| BDA | Battle Damage Assessment |
| BGPHES | Battle Group Passive Horizon Extension System |
| Blk | Block [Upgrade] |
| BMDO | Ballistic Missile Defense Organization |
| BRAC | Base Closure and Realignment |
| BUR | Bottom-Up Review |
| SPACING | |
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| C2W | Command and Control Warfare |
| C4ISR | Command, Control, Communication, Computers, Intelligence, Surveillance, and Reconnaissance |
| CAS | Close Air Support |
| CBR | Chemical, Biological, and Radiological |
| CCS | Combat Control System |
| CDR | Critical Design Review |
| CDS | Combat Development System |
| CEC | Cooperative Engagement Capability |
| CENTCOM | Central Command |
| CG | Guided Missile Cruiser |
| CHBDL | Common High Band Data Link |
| CHINFO | Chief of Navy Information |
| CinC | Commander-in-Chief |
| CIWS | Close-in Weapons System |
| CLA | [Aircraft] Carriers, Littoral Warfare, and Auxiliaries |
| CLF | Combat Logistics Force |
| CMC | Commandant, U.S. Marine Corps |
| CMD | Cruise Missile Defense |
| CNET | Chief of Naval Education and Training |
| CNO | Chief of Naval Operations |
| COEA | Cost and Operational Effectiveness Analysis |
| COLDS | Cargo Offload and Discharge System |
| COTS | Commercial-Off-The-Shelf, also Cargo Offload and Transfer System |
| CPAM | CNO Program Analysis Memorandum |
| CSS | Combat Service Support |
| CV | Conventionally Powered Aircraft Carrier |
| CVBG | Aircraft Carrier Battle Group |
| CVN | Nuclear-Powered Aircraft Carrier |
| CVW | Aircraft Carrier Air Wing |
| CVNX | Next-Generation Nuclear-Powered Aircraft Carrier |
| CY | Calendar Year |
| SPACING | |
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| DAB | Defense Acquisition Board |
| DCNO | Deputy Chief of Naval Operations |
| DC/S P&R | Deputy Chief of Staff for Programs and Resources |
| DD | Destroyer |
| DEM/VAL | Demonstration/Validation |
| DF | Direction Finding |
| DDG | Guided Missile Destroyer |
| DII COE | Defense Information Infrastructure Common Operating Environment |
| DoD | Department of Defense |
| DoN | Department of the Navy |
| DRPM | Direct-Reporting Program Manager |
| DSMAC | Digital Scene-Matching Area Correlation |
| DSRV | Deep-Submergence Rescue Vehicle |
| DT | Developmental Testing |
| SPACING | |
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| ECM | Electronic Countermeasures |
| ECP | Engineering Change Proposal |
| EHF | Extremely High Frequency |
| EMD | Engineering and Manufacturing Development |
| EO | Electro-Optical |
| EOD | Explosive Ordnance Disposal |
| ERGM | Extended-Range Guided Munition |
| ESG | Executive Steering Group |
| ESM | Electronic Support Measures |
| ESSM | Evolved Sea Sparrow Missile |
| EW | Electronic Warfare |
| SPACING | |
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| FISC | Fleet Industrial Supply Center |
| FFG | Guided Missile Frigate |
| FLIR | Forward-Looking Infrared |
| FLSS | Forward Logistics Support Sites |
| FMFLANT | Fleet Marine Force, Atlantic |
| FMFPAC | Fleet Marine Force, Pacific |
| FOC | Full Operational Capability |
| FRP | Full-Rate Production |
| FUE | First Unit Equipped |
| FSC | Family Service Center |
| FY | Fiscal Year |
| FYDP | Future Years Defense Plan |
| SPACING | |
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| GBTS | Ground-Based Training System |
| GCCS | Global Command and Control System |
| GDP | Gross Domestic Product |
| GMLS | Guided Missile Launching System |
| GOTS | Government off-the-shelf |
| GPS | Global Positioning System |
| SPACING | |
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| HARM | High-Speed Anti-Radiation Missile |
| Hiper-D | High Performance Distributed Processing |
| HOL | High Order Language |
| HQMC | Headquarters, U.S. Marine Corps |
| SPACING | |
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| I&W | Indications & Warning |
| IDS | Integrated Deepwater System (U.S. Coast Guard) |
| IFF | Identification, Friend or Foe |
| IMET | International Military Education and Training |
| INS | Inertial Navigation System |
| IOC | Initial Operational Capability |
| IPO | International Programs Office |
| IPPD | Integrated Product and Process Development |
| IPT | Integrated Process Team |
| IR | Infrared |
| IRST | Infrared Search and Track |
| ISD | Integrated Ship Defense |
| ISS | Information Superiority/Sensors |
| IT-21 | Information Technology for the 21st Century |
| IWR | Integrated Warfare Architecture |
| SPACING | |
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| JAST | Joint Advanced Strike Technology |
| JCS | Joint Chiefs of Staff |
| JDAM | Joint Direct Attack Munition |
| JMCIS | Joint Maritime Command Information System |
| Joint STARS | Joint Surveillance and Target Attack Radar System |
| JROC | Joint Requirements Oversight Council |
| JSF | Joint Strike Fighter |
| JSIPS | Joint Service Imagery Processing System |
| JSOW | Joint Standoff Weapon |
| JSTARS | see Joint STARS |
| JPATS | Joint Primary Aircraft Training System |
| JTIDS | Joint Tactical Information Distribution System |
| JV2010 | Joint Vision 2010 |
| JWCA | Joint Warfighting Capability Assessment |
| SPACING | |
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| KKV | Kinetic Kill Vehicle |
| SPACING | |
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| LAMPS | Light Airborne Multipurpose System |
| LAN | Local Area Network |
| LCAC | Landing Craft, Air Cushion |
| LCC | Amphibious Command Ship |
| LEAP | Lightweight Exo-Atmospheric Projectile |
| LEIP | Link Eleven Improvement Program |
| LFA | Low Frequency Active |
| LHA | Amphibious Assault Ship |
| LHD | Amphibious Assault Ship |
| LKA | Amphibious Cargo Ship |
| LMSR | Large, Medium-Speed Roll-On/Roll-Off [Ship] |
| LOTS | Logistics Over-The-Shore |
| LPD | Amphibious Transport Dock [Ship] |
| LPH | Landing Platform, Helicopter [Ship] |
| LRIP | Low Rate Initial Production |
| LSD | Dock Landing Ship |
| LST | Tank Landing Ship |
| SPACING | |
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| MAGTF | Marine Air Ground Task Force |
| MARFOR | Marine Force |
| MAWS | Missile Approach Warning System |
| MCAC | Multipurpose Craft Air Cushion (LCAC modification) |
| MCM | Mine Countermeasures |
| MCS | Mine Countermeasures Command, Control, and Support Ship |
| MCU | Mission Computer Upgrade |
| MEB | Marine Expeditionary Brigade |
| MEF | Marine Expeditionary Force |
| MEU | Marine Expeditionary Unit |
| MEU(SOC) | Marine Expeditionary Unit-Special Operations Capable |
| MHC | Coastal Mine Hunter |
| MHIP | Missile Homing Improvement Program |
| MIDS | Multi-function Information Distribution System |
| MIDS-LVT | Multi-function Information Distribution System - Low Volume Terminal |
| MIW | Mine Warfare |
| Mk | Mark |
| MLR | Medium Lift Replacement |
| MNS | Mission Need Statement, also Mine Neutralization System |
| MOB | Mobile Offshore Base |
| MOD | Model |
| MPA | Maritime Patrol Aircraft |
| MPF | Maritime Prepositioning Force |
| MPS | Maritime Prepositioning Ships |
| MRC | Major Regional Contingency |
| MRS | Mobility Requirements Study |
| MSC | Military Sealift Command |
| MTW | Major Theater War |
| MWR | Morale, Welfare, and Recreation |
| SPACING | |
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| NAS | Naval Air Station |
| NATO | North Atlantic Treaty Organization |
| NAVAIR | Naval Air Systems Command |
| NAVFACENGCOM | Naval Facilities Engineering Command |
| NAVSEA | Naval Sea Systems Command |
| NAVSUP | Naval Supply Systems Command |
| NCTR | Non-Cooperative Target Recognition |
| NCW | Network-Centric Warfare |
| NDC | Naval Doctrine Command |
| NDI | Non-Developmental Item |
| NDP | National Defense Panel |
| NEO | Non-Combatant Evacuation |
| NESP | Navy Extremely High Frequency (EHF) Satellite Program |
| NIPO | Navy International Programs Office |
| NMCB | Naval Mobile Construction Battalion |
| NOC | Navy Operational Concept |
| NPS | New-Parent Support |
| NRF | Naval Reserve Force |
| NSFS | Naval Surface Fire Support |
| NSSMS | NATO Sea Sparrow Missile System |
| NSSN | New Attack Submarine (Virginia SSN-74 Class) |
| NSW | Naval Special Warfare |
| NTCSS | Naval Tactical Command Support System |
| NTW | Navy Theater-Wide |
| NWC | Naval War College |
| NWDC | Naval Warfare Development Command |
| SPACING | |
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| OOTW | Operations Other Than War |
| OPEVAL | Operational Evaluation |
| OPNAV | Office of the Chief of Naval Operations |
| OPTEMPO | Operating Tempo |
| OPTEVFOR | Operational Test and Evaluation Force |
| OMFTS | Operational Maneuver From the Sea |
| ORD | Operational Requirements Document |
| OSD | Office of the Secretary of Defense |
| OSS | Operations Support System |
| OSA | Open System Architecture |
| OT | Operational Testing |
| SPACING | |
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| P3I | Pre-Planned Product Improvement |
| PACE | Program for Afloat Education |
| PEO | Program Executive Office (and Officer) |
| PERSTEMPO | Personnel Tempo |
| PDR | Preliminary Design Review |
| PEG | Program Evaluation Group |
| PGM | Precision-Guided Munitions |
| PLGR | Precision Lightweight GPS Receivers |
| POM | Program Objective Memorandum |
| PPBS | Planning, Programming, and Budgeting System |
| PD&RR | Program Definition and Risk Reduction |
| PRG | Program Review Group |
| PWG | POM Working Group |
| SPACING | |
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| QDR | Quadrennial Defense Review |
| QOL | Quality of Life |
| SPACING | |
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| RAIDS | Rapid Anti-ship cruise missile Integrated Defense System |
| RAM | Rolling Airframe Missile |
| RBA | Revolution in Business Affairs |
| RDT&E | Research, Development, Test, and Evaluation |
| RF | Radio Frequency |
| RFP | Request For Proposals |
| RIF | Reduction in Forces |
| RMA | Revolution in Military Affairs |
| RO/RO | Roll-On/Roll-Off [Ship] |
| SPACING | |
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| SAC | Supporting Arms Coordination |
| SADARM | Seek And Destroy Armor |
| SAM | Surface-to-Air Missile |
| SATCOM | Satellite Communications |
| SC | Surface Combatants |
| SEAD | Suppression of Enemy Air Defenses |
| Seabee | Naval Construction Battalion |
| SEAL | Sea-Air-Land Naval Special Warfare forces |
| SER | Selective Early Retirement |
| SEW | Space and Electronic Warfare |
| SHF | Super High Frequency |
| SIGINT | Signals Intelligence |
| SINCGARS | Single Channel Ground and Air Radio |
| SLAM | Standoff Land-Attack Missile |
| SLAM-ER | Standoff Land-Attack Missile - Expanded Response |
| SLBM | Submarine-Launched Ballistic Missile |
| SLEP | Service Life Extension Program |
| SM | Standard Missile |
| SMCM | Surface Mine Countermeasures [Ship] |
| SOAD | Standoff Outside Area Defense |
| SOC | Special Operations Capable, also Special Operations Craft |
| SOF | Special Operations Forces |
| SOPD | Standoff Outside Point Defense |
| SOSUS | Sound Surveillance System |
| SPAWAR | Space and Naval Warfare Systems Command |
| SRP | Sustained Readiness Program |
| SSB | Selective Separation Bonus |
| SSBN | Nuclear-Powered Ballistic Missile Submarine |
| SSC | Small-Scale Contingency |
| SSDS | Ship Self-Defense System |
| SSN | Nuclear-Powered Attack Submarine |
| STOM | Ship-To-Objective-Maneuver |
| STOVL | Short Take-Off and Vertical Landing |
| SURTASS | Surveillance Towed Array Sensor System |
| SWATH | Small Waterplane Area, Twin Hull [ship] |
| SWMCM | Shallow-Water Mine Countermeasures |
| SPACING | |
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| TACAMO | Take-Charge-and-Move-Out |
| T-AGOS | Ocean Surveillance Ship (MSC-operated) |
| T-AGS | Oceanographic Survey Ships (MSC/Civilian Agency-operated) |
| TAMPS | Tactical Aircraft Mission Planning System |
| T-AO | Oiler (MSC-operated) |
| TAD | Theater Air Defense |
| TBIP | Tomahawk Baseline Improvement Program |
| TBM | Theater Ballistic Missile |
| TBMD | Theater Ballistic Missile Defense |
| TDD | Target Detection Device |
| TECHEVAL | Technical (Developmental) Evaluation |
| TERA | Temporary Early Retirement Authorization |
| TERCOM | Terrain Contour Mapping |
| TISS | Thermal Imaging Sensor System |
| TLAM | Tomahawk Land-Attack cruise Missile |
| TOA | Total Obligational Authority |
| TPED | Tasking, Processing, Exploitation, and Dissemination |
| TRAP | Tactical Recovery of Aircraft and Personnel |
| TSP | Thrift Savings Plan |
| SPACING | |
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| UAV | Unmanned Aerial Vehicle |
| UFO | Ultra High Frequency Follow-On |
| UHF | Ultra High Frequency |
| UOES | User Operational Evaluation System |
| UNREP | Underway Replenishment |
| USCG | United States Coast Guard |
| USD/A | Undersecretary of Defense for Acquisition |
| USW | Undersea Warfare |
| UUV | Unmanned Underwater Vehicle |
| SPACING | |
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| VCNO | Vice Chief of Naval Operations |
| VERTREP | Vertical (underway) Replenishment |
| VHA | Variable Housing Allowance |
| VLS | Vertical Launching System |
| VSI | Voluntary Separation Incentive |
| V/STOL | Vertical/Short Take-Off or Landing |
| SPACING | |
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| WCS | Weapon Control System |
| WMD | Weapons of Mass Destruction (nuclear, biological, chemical) |
| WPN | Navy Weapons Procurement Appropriation |
| SPACING | |
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| Y2K | Year 2000 |
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