The Canonical List of Three-Letter Acronyms (TLAs) AAA American Automobile Association ABA American Bar Association ABC American Broadcasting Company ABS Antilock Braking System ACC Air Combat Command ACL Access Control List ACE? Association of Cable Entertainers ACM Association for Computing Machinery ACT American College Test ADA American Dental Association ADC Analog-to-Digital Converter ADD Attention Deficit Disorder ADM Archer Daniels Midland AFA Air Force Academy AFB Air Force Base AFC American Football Conference AFI American Film Institute AFL American Football League AFN Armed Forces Network AFS Andrew File System AIR Annals of Improbable Research AIS Automated Information System AKC American Kennel Club AMA American Medical Association ANG Air National Guard AOL America Online API Application Programming Interface APL A Programming Language ASL American Sign Language ASU Arizona State University ATM Automatic Teller Machine ATV All-Terrain Vehicle AVA American Volkssport Association AWD All-Wheel Drive BBB Better Business Bureau BBC British Broadcasting Corporation BBN Bolt, Beranek, and Newman BBS Bulletin Board System BCD Binary Coded Decimal BET Black Entertainment Television BFG Big Friendly Giant BLT Bacon, Lettuce, and Tomato BMW Bavarian Motor Works BPS Bits Per Second BRB Be Right Back BSA Boy Scouts of America BTZ Below The Zone CAD Computer-Aided Design CAM Computer-Aided Manufacturing CAT Computerized Axial Tomography CBC Canadian Broadcasting Corporation CBM Commodore Business Machines CBS Columbia Broadcasting System CBT Computer-Based Training CCC Civilian Conservation Corps CCD Charge-Coupled Device CCR Creedence Clearwater Revival CDC Centers for Disease Control CDL Commercial Driver's License CDT Central Daylight Time CEO Chief Executive Officer CFC Chlorofluorocarbon CFO Chief Financial Officer CGA Color Graphics Adapter CGI Common Gateway Interface CIA Central Intelligence Agency CIO Chief Information Officer CIS Commonwealth of Independent States CMM Capability Maturity Model CMU Carnegie Mellon University CNN Cable News Network COC Commandant of Cadets COD Cash On Delivery COO Chief Operating Officer CPA Certified Public Accountant CPB Corporation for Public Broadcasting CPR Cardio-Pulmonary Resuscitation CPU Central Processing Unit CRC Cyclic Redundancy Check CRO Change of Reporting Official CRT Cathode Ray Tube CSA Confederate States of America CSP Communications Support Processor CST Central Standard Time CSU Colorado State University CTS Clear To Send CTW Children's Television Workshop CUA Common User Access CWO Chief Warrant Officer CYA Cover Your Ass CYO Christian Youth Organization DAC Digital-to-Analog Converter DAT Digital Audio Tape DDK Device Development Kit DDS Doctor of Dental Science DDT Dichloro-diphenyl-trichloroethane DEA Drug Enforcement Agency DEC Digital Equipment Corporation DES Data Encryption Standard DFT Discrete Fourier Transform DIA Defense Intelligence Agency DIS Defense Investigative Service DLL Dynamically Linked Library DMV Department of Motor Vehicles DMZ Demilitarized Zone DNA Deoxyribonucleic Acid DNS Domain Name Service DOA Dead On Arrival DOD Department of Defense DOE Department of Energy DOJ Department of Justice DOS Disk Operating System DOT Department of Transportation DPI Dots Per Inch DSS Digital Satellite System DVD Digital Videodisc DVM Doctor of Veterinary Medicine EAM Emergency Actions Message EAP Emergency Actions Procedures EBS Emergency Broadcast System ECG Electrocardiogram ECM Electronic Countermeasures ECP Entry Control Point EDO Extended Data Out EDS Electronic Data Systems EDT Eastern Daylight Time EEC European Economic Community EEG Electroencephalogram EEO Equal Employment Opportunity EFF Electronic Frontier Foundation EGA Enhanced Graphics Adapter EHF Extremely High Frequency EMP Electromagnetic Pulse ENE East-Northeast ENT Ear, Nose and Throat EOE Equal Opportunity Employer EOL End of Line EPA Environmental Protection Agency EPR Enlisted Performance Report ERA Equal Rights Amendment ESA European Space Agency ESC Electronic Security Command ESE East-Southeast ESL English as a Second Language ESP Extra-Sensory Perception EST Eastern Standard Time ETA Estimated Time of Arrival ETS Educational Testing Service FAA Federal Aviation Administration FAQ Frequently Asked Questions FAT File Allocation Table FBI Federal Bureau of Investigation FCA Fellowship of Christian Athletes FCC Federal Communications Commission FDA Food and Drug Administration FDM Frequency-Division Multiplexing FET Field Effect Transistor FFT Fast Fourier Transform FSK Frequency Shift Keying FSU Florida State University FTC Federal Trade Commission FTD Florists' Transworld Delivery FTL Faster Than Light FTP File Transfer Protocol FYI For Your Information GAO General Accounting Office GBS Global Broadcast System GDP Gross Domestic Product GIF Graphics Interchange Format GMT Greenwich Mean Time GNP Gross National Product GOP Grand Old Party GOV Government Owned Vehicle GPA Grade Point Average GPO Government Printing Office GPS Global Positioning System GSA General Services Administration GTE General Telephone and Electric GUI Graphical User Interface GUT Grand Unified Theory HBO Home Box Office HIV Human Immunodeficiency Virus HOL High-Order Language HST Hubble Space Telescope HUD Heads-Up Display IAW In Accordance With IBM International Business Machines IDE Integrated Drive Electronics IFR Instrument Flying IMF International Monetary Fund IMO In My Opinion INS Immigration and Naturalization Service IPA International Phonetic Alphabet IPC Interprocess Communication IPO Initial Public Offering IPZ In the Promotion Zone IRA Individual Retirement Account IRS Internal Revenue Service ISA Industry-Standard Architecture ISP Internet Service Provider ITT International Telephone and Telegraph JAG Judge Advocate General JAL Japan Airlines JCL Job Control Language JPL Jet Propulsion Laboratory KFC Kentucky Fried Chicken KIA Killed In Action KKK Ku Klux Klan KPH Kilometers Per Hour KSU Kansas State University LAN Local Area Network LCD Liquid Crystal Display LED Light Emitting Diode LES Leave and Earnings Statement LHS Left-Hand Side LMR Land Mobile Radio LOA Letter of Appreciation LOC Letter of Counseling LOE Letter of Evaluation LOR Letter of Reprimand LOS Loss of Signal LRU Least Recently Used LSU Louisiana State University MAC Military Airlift Command MBA Master of Business Administration MBO Management By Objective MCI Microwave Communications, Inc. MDT Mountain Daylight Time MGM Metro-Goldwyn-Mayer MIA Missing In Action MIS Management Information Systems MIT Massachusetts Institute of Technology MLB Major League Baseball MMA Metropolitan Museum of Art MPH Miles Per Hour MOA Memorandum of Agreement MOS Metal Oxide Semiconductor MPC Multimedia Personal Computer MPG Miles Per Gallon MRI Magnetic Resonance Imagery MRU Most Recently Used MSG Monosodium Glutamate MSM Meritorious Service Medal MST Mountain Standard Time MSU Michigan State University MTU Michigan Technological University MTV Music Television MUD Multi-User Dungeon NAN Not A Number NAS Naval Air Station NAV Net Asset Value NBA National Basketball Association NBC National Broadcasting Company NBS National Bureau of Standards NCO Non-Commissioned Officer NEA National Education Association NEH National Endowment for the Humanities NFL National Football League NFS Network File System NGO Non-Governmental Organization NHL National Hockey League NIH National Institutes of Health NII National Information Infrastructure NIS Network Information Service NIT National Invitation Tournament NMI No Middle Initial NMN No Middle Name NMR Nuclear Magnetic Resonance NNE North-Northeast NNW North-Northwest NOW National Organization of Women NPC Non-Player Character NPR National Public Radio NRA National Rifle Association NRO National Reconnaissance Office NSA National Security Agency NSF National Science Foundation NYC New York City NYT New York Times NYU New York University OBE Overcome By Events OCR Optical Character Recognition OEM Original Equipment Manufacturer OJT On-the-Job Training OLE Object Linking and Embedding OMB Office of Management and Budget OMD Orchestral Manoeuvres in the Dark ONR Office of Naval Research OOA Object-Oriented Analysis OOD Object-Oriented Design OOP Object-Oriented Programming OPR Officer Performance Report ORI Operational Readiness Inspection OSI Office of Special Investigations OSU Ohio State University OTC Over-the-Counter OWC Officers' Wives Club PAC Political Action Committee PAL Programmable Array of Logic PBM Portable Bitmap PBS Public Broadcasting Service PCB Polychlorinated Biphenyl PCI Interface PCM Pulse Code Modulation PDA Public Display of Affection PDF Portable Document Format PDT Pacific Daylight Time PET Positron Emission Tomography PFC Private First Class PFE Promotion Fitness Examination PGA Professional Golf Association PGM Portable Graymap PGP Pretty Good Privacy PIM Personal Information Manager PIN Personal Identification Number PLA Programmable Logic Array PLO Palestine Liberation Organization PME Professional Military Education PMI Preventative Maintenance Inspection PMS Pre-Menstrual Syndrome POC Point of Contact POI Point of Interest POL Petroleum, Oil, and Lubricants POM Program Objective Memorandum POP Post Office Protocol POV Personally Owned Vehicle POW Prisoner of War PPB Parts Per Billion PPM Parts Per Million PPP Point-to-Point Protocol PRI Public Radio International PST Pacific Standard Time PTA Parent-Teacher Association PTL Praise The Lord PVC Polyvinylchloride QAF Quality Air Force QAR Quality Assurance Review QED quod erat demonstrandum RAF Royal Air Force RAM Random-Access Memory RCA Radio Corporation of America RDA Recommended Daily Allowance REI Recreational Equipment, Inc. REM Rapid Eye Movement RHS Right-Hand Side RIF Reduction In Force RIT Rensselaer Institute of Technology RLE Run-Length Encoding RNA Ribonucleic Acid ROK Republic of Korea ROM Read-Only Memory RPG Role-Playing Game RSI Repetitive Strain Injury RTA Rapid Transit Authority RTC Resolution Trust Corporation RTS Ready To Send SAC Strategic Air Command SAE Society of Automotive Engineers SAT Scholastic Aptitude Test SAV Staff Assistance Visit SCA Society for Creative Anachronisms SCI Sensitive Compartmented Information SCO Santa Cruz Operation SDD Software Description Document SDI Strategic Defense Initiative SDK Software Development Kit SEC Securities and Exchange Commission SEM Scanning Electron Microscope SGI Silicon Graphics, Inc. SHF Super High Frequency SIV Simian Immunodeficiency Virus SLR Single Lens Reflex SMU Southern Methodist University SNL Saturday Night Live SOL Shit Out of Luck SOP Standard Operating Procedure SOS Save Our Ship SOW Statement of Work SPO System Program Office SQL Structured Query Language SRI Stanford Research Institute SSE South-Southeast SSI Strategic Simulations, Inc. SSL Secure Sockets Layer SSN Social Security Number SSO Special Security Office SSS Staff Summary Sheet SST Supersonic Transport SSW South-Southwest STM Scanning Tunneling Microscope STP Stone Temple Pilots SUN Stanford University Network SUV Sport-Utility Vehicle TAC Tactical Air Command TAG Talented and Gifted TAP Transition Assistance Program TBS Turner Broadcasting System TCP Transmission Control Protocol TCU Texas Christian University TDM Time-Division Multiplexing TFT Thin Film Transistor THC Tetrahydrocannabinol TLA Three-Letter Acronym TLB Translation Lookaside Buffer TLC Tender Loving Care TLF Temporary Lodging Facility TLQ Temporary Living Quarters TMO Traffic Management Office TNT Trinitrotoluene TOE Theory of Everything TQM Total Quality Management TSR Tactical Studies Rules TVA Tennessee Valley Authority TWA Trans World Airlines UAW United Auto Workers UCB University of California - Berkeley UDP User Datagram Protocol UFO Unidentified Flying Object UHF Ultra High Frequency UMD University of Michigan - Dearborn UNC University of North Carolina UNL University of Nebraska - Lincoln UPS United Parcel Service USA United States of America USC University of Southern California USN United States Navy UTE Universal Terminal Emulator UVA Ultraviolet A VAC Volts - Alternating Current VCR Video Cassette Recorder VDC Volts - Direct Current VDD Version Description Document VDT Video Display Terminal VFR Visual Flying VGA Video Graphics Adapter VHA Variable Housing Allowance VHF Very High Frequency VHS Video Home System VLB VESA Local Bus VLF Very Low Frequency WAN Wide Area Network WDI Walt Disney, Inc. WHO World Health Organization WNW West-Northwest WPA Works Progress Administration WSJ Wall Street Journal WSU Washington State University WSW West-Southwest WTO World Trade Organization WVU West Virginia University WWW World-Wide Web YFU Youth For Understanding ZIF Zero Insertion Force ZIP Zone Postal