| AASHTO = American Association of State Highway and Transportation Officials |
| ABINEE = Brazilian Electrical and Electronic Industry Association |
| ABNT = Brazilian Association of Technical Standards |
| AC = Alternating current |
| ADSL = Asymmetric digital subscriber line |
| AENOR = Spanish National Committee of the IEC |
| AES = Audio Engineering Society |
| AHAM = Association of Home Appliance Manufacturers |
| AHG = Ad hoc group |
| AIE = International Association of Electrical Contractors |
| AIMD = Active implementable medical devices |
| AIS = Air insulated substation |
| ANCE = The Mexican standard writing, testing and certifying agency for the electrical sector. |
| ANSI = American National Standards Institute |
| ANWR = Arctic National Wildlife Refuge |
| AOPDDR = Active opto-electronic protective device responsive to diffuse reflection. |
| APEC = Asia-Pacific Economic Cooperation |
| ARI = Air Conditioning and Refrigeration Institute |
| ASC = Accredited Standards Committee |
| ASIC = (programmable) Application specific IC (semi-custom IC) |
| ASQ = American Society for Quality |
| ASTM = American Society for Testing and Materials |
| AWG = American wire gauge |
| AWS = American Welding Society |
| BIAP = International Office for Audiophonology |
| BIPM = International Bureau of Weights and Measures |
| BoG = Board of Governors |
| BR = Radiocommunication Bureau |
| CANAME = Mexican National Chamber of Commerce |
| CANENA = The Council for Harmonization of Electrotechnical Standards of the Nations of the Americas |
| CASC = Conformity & Assessment Subcommittee |
| CD = Committee Draft |
| CDA = Copper Development Association |
| CDV = Committee Draft for Vote |
| CEC = Commission of the European Communities |
| CECC = CENELEC Electronic Components Committee |
| CEN = European Committee for Standardization |
| CENELEC = The European body that sets electrical Standards. |
| CEPT = European Conference of Postal and Telecommunications Administrations |
| CIB = International Council for Building Research Studies and Documentation |
| CIE = International Commission on Illumination |
| CIGRE = International Conference on Large High Voltage Electric Systems |
| CIRED = International Conference on Electricity Distribution |
| CIRM = International Maritime Radio Association |
| CLC = CENELEC = European Committee for Electrotechnical Standardization |
| COBEI = Committee of Brazilian Electricity Industry |
| COPANT = Pan American Commission on Technical Standards |
| CPSC = U.S. Consumer Product Safety Commission |
| CSA = Canadian Standards Association |
| CTI = Comparative tracking index |
| CTL = Committee of testing laboratories of the IEC system |
| CWDM = Coarse wave division multiplexing |
| C&S = Codes and Standards Committee |
| DC = Direct current |
| DICOM = Digital Imaging and Communications in Medicine |
| DTS = Draft of Technical Specification |
| DWDM = Dense wavelength division multiplexing |
| EBU = European Broadcasting Union |
| ECMA = European Computer Manufacturers Association |
| EDA = Electronic Design Automation |
| EFET = European Federation of Energy Traders |
| EFOMP = European Federation of Organizations for Medical Physics |
| EHIMA = European Hearing Instrument Manufacturers Association |
| EHV = Extra high voltage |
| EIA = Electronic Industries Association |
| EICTA = European Information and Communications Technology Industry Association |
| ELSECOM = European Electrotechnical Standards Committee |
| EMC = Electromagnetic compatibility |
| EMI = Electromagnetic interference |
| EPDM = Ethylene Propylene Diene Monomer |
| EPRI = Electric Power Research Institute |
| ESD = Electrostatic discharge |
| ETSI = European Telecommunications Standards Institute |
| ETSO = European Transmission Systems Operators |
| EURELECTRIC = The Union of the Electricity Industry |
| FDIS =Final Draft International Standard |
| FHWA = Federal Highway Administration |
| FID = International Federation for Information and Documentation |
| FIESP = Federation of Industries of the State of Sao Paulo |
| FTAA = Free Trade Agreement of the Americas |
| GIS = Gas insulated substation |
| HIA = Hearing Industries Association |
| HIMA = Health Industry Manufacturers Association |
| HPS = Health Physics Society |
| HTML = Hypertext markup language |
| HV = High voltage |
| IAAC = Inter-American Accreditation Council |
| IAEA = International Atomic Energy Agency/Authority |
| IAEI = International Association of Electrical Inspectors |
| IARU = International Amateur Radio Union |
| ICAO = International Civil Aviation Organization |
| ICNIRP = International Commission on Non-Ionizing Radiation Protection |
| ICRP = International Commission on Radiological Protection |
| ICRU = International Commission on Radiation Units and Measurements |
| IEC = International Electrotechnical Commission |
| IEEE = Institute of Electrical and Electronics Engineers |
| IEEE-SPDC = Institute of Electrical and Electronics Engineers-Surge Protective Devices Committee |
| IEEJ = The Institute of Electrical Engineers of Japan |
| IIW = International Institute of Welding |
| IK codes = Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts. |
| ILO = International Labour Office |
| INMETRO = The National System of Metrology, Standardization, and Industrial Quality |
| IOCU = International Organization of Consumers Unions |
| IPC = Institute for Interconnecting and Packaging of Electronic Circuits |
| IRPA = International Radiation Protection Association |
| IRSC = International and Regional Standardization Committee |
| ISO = International Organization for Standardization |
| ISO/CASCO = Committee on Conformity Assessment |
| ISSA = International Social Security Association |
| ITU = International Telecommunication Union |
| ITU-R = International Telecommunication Union - Radiocommunications |
| ITU-T = International Telecommunication Union - Telecommunication |
| IUPAP = International Union of Pure and Applied Physics |
| JEDEC =Joint Electronic Device Engineering Council |
| JEITA = Japan Electronics and Information Technology Industries Association ">JEITA = Japan Electronics and Information Technology Industries Association |
| JPCA = Japanese Printed Circuit boards Association |
| JTF = Joint Task Force |
| JWES = Japan Welding Engineering Society |
| KCMIL = KCMIL wire size is the equivalent cross-sectional area in thousands of circular mills. A circular mill is the are of a circle with a diameter of one thousandth (0.001) of an inch. |
| LAG = Advisory Group on Legal Aspects (TC 56) |
| LED = Light emitting diodes |
| MCM = Multi-chip module |
| MDMA = Medical Device Manufacturers Association |
| MERCOSUR = The Southern Common Market |
| MQSA = Mammography Quality Standards Act |
| MSDS = Material Safety Data Sheet |
| NACFAM = National Coalition for Advanced Manufacturing |
| NAESB = North American Energy Standards Board |
| NCRP = National Council on Radiation Protection and Measurements |
| NECA = Nippon Electrical Control Association |
| NEMA = National Electrical Manufacturers Association |
| NERC = North American Electric Reliability Council |
| NOM = Norma Official Mexicana |
| NTCIP = National Transportation Communications for ITS Protocol |
| OEM = Original equipment manufacturer |
| OIDDI = Open Interoperable Domain Dictionary Initiative |
| OIML = International Organization for Legal Metrology |
| ORGALIME = Liaison group of the European mechanical, electrical, electronic and metalworking industries |
| PASC = Pacific Area Standards Congress |
| PCB = Polychlorinated biphenyls; or Printed circuit board |
| PELV = Protective extra low voltage |
| PLIB = Parts Libraries |
| QSAR = Quality System Assessment Recognition |
| RCD = Residual current device |
| RF = Radio frequency |
| RIV = Radio interference voltage |
| ROHS = Restriction on Hazardous Substances |
| SAB = Science Advisory Board |
| SAG = Strategic Advisory Group (TC 56) |
| SCAPC = Standards and Conformity Assessment Policy Committee |
| SELV = Safety extra-low voltage |
| SF6 = Sulphur hexafluoride |
| SGFS = Special Group on Functional Standardization |
| Si2 = Silicon Integration Initiative |
| SMPTE = Society of Motion Picture and Television Engineers |
| SPD = Surge Protective Device |
| STP = Standards Technical Panel |
| TAG = Technical Advisory Group |
| TEM = Transverse electromagnetic (mode) |
| TS = Technical Specification |
| UCIEE = Uniao Certificadora da Industria Electro-Electronica |
| UCPTE = Union for the Coordination of the Production and Transport of Electric Power |
| UIC = International Union of Railways |
| UIE = International Union for Electroheat |
| UITP = International Union of Public Transports |
| UL = Underwriters Laboratories Inc. |
| USNC = U.S. National Committee |
| VRLA = Valve regulated lead-acid (battery or cell) |
| WDM = Wavelength division multiplexing |
| WEEE = Waste Electrical and Electronic Equipment |
| WHO = World Health Organization |
| WT = Wind turbine |