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GovSpeak: A Guide to U.S. Government Acronyms & Abbreviations: N

The most current, extensive and fully-linked listing of U.S. government agency, office, program and publication acronyms.


NAAL National Assessment of Adult Literacy
NAALC North American Agreement on Labor Cooperation (older link archive)
NAAMES North Atlantic Aerosols and Marine Ecosystems Study
NAAMP North American Amphibian Monitoring Program (older link archive)
NAAQS National Ambient Air Quality Standards
NABEC Native American Business Enterprise Center (unable to verify 3/19)
NABMRR National Advisory Board on Medical Rehabilitation Research (older link archive)
NAC NASA Advisory Council | National Advisory Committee, EPA | National Agroforestry Center (older link archive; archive2) | National Audiovisual Center
NACCH National Assessment of Coastal Change Hazards (older link archive; archive2; archive3)
NACD Native American Consultation Database (discontinued 2/18)
NACEM North American Climate Extremes Monitoring
NACEPT National Advisory Council for Environmental Policy and Technology (unable to verify 12/19)
NACHHD National Advisory Child Health and Human Development Council (older link archive)
NACIC National Counterintelligence Center (merged into ONCIX, then into NCSC)
NACIE National Advisory Council on Indian Education | National Advisory Council on Innovation and Entrepreneurship
NACO Name Authority Cooperative Program
NACOSH National Advisory Committee on Occupational Safety & Health (older link archive)
NACS Nuclear and Chemical Sciences Division (older link archive)
NACTEP Native American-Career and Technical Education Program
NAD National Address Database (older link archive) | National Appeals Division
NAEP National Assessment of Educational Progress
NAETC Native American Employment and Training Council (older link archive; archive2)
NAFDS National Agriculture and Food Defense Strategy (older link archive)
NAFRI National Advanced Fire and Resource Institute
NAFTA North American Free Trade Agreement (older link archive)
NAGB National Assessment Governing Board
NAGP National Animal Germplasm Program (older link archive)
NAGPRA National Native American Graves Protection and Repatriation Act (older link archive)
NAHLN National Animal Health Laboratory Network
NAHMS National Animal Health Monitoring System
NAHRS National Animal Health Reporting System
NAI NASA Astrobiology Institute (unable to verify 10/20)
NAICS North American Industry Classification System
NAIP National Adult Immunization Plan
NAL National Agricultural Library (older link archive)
NALDC National Agricultural Library Digital Collections (older link archive)
NAMCS National Ambulatory Medical Care Survey (older link archive)
NamUs National Missing and Unidentified Persons System
NAO National Applications Office (defunct) | North Atlantic Oscillation
NAP National Action Plan | Noninsured Crop Disaster Assistance Program
NAPAP National Acid Precipitation Assessment Program (unable to verify 8/18)
NAPCS North American Product Classification System
NARA National Archives and Records Administration
NAREL National Analytical Radiation Environmental Laboratory
NARMS National Antimicrobial Resistance Monitoring System for Enteric Bacteria (older link archive)
NARR North American Regional Reanalysis
NARS National Aquatic Resource Surveys
NAS The National Academies (older link archive) | Nonindigenous Aquatic Species
NASA National Aeronautics and Space Administration
NASIS National Soil Information System
NASM National Air and Space Museum
NASNTI Native American-Serving Nontribal Institutions Program
NASS National Agricultural Statistics Service | National Automotive Sampling System
NATA National Air Toxics Assessment
NATCARB National Carbon Sequestration Database and Geographic Information System (older link archive)
NATO North Atlantic Treaty Organisation (older link archive)
NATTS National Air Toxics Trends Stations
NAVCEN Navigation Center
NAWQA National Water-Quality Assessment Program (older link archive; archive2)
NAWS National Agricultural Workers Survey (older link archive; archive2)
NBAC National Bioethics Advisory Commission (replaced by PCBE, then PCSBI)
NBACC National Biodefense Analysis and Countermeasures Center
NBAF National Bio and Agro-Defense Facility
NBB Nutritional Biomarkers Branch
NBC National Business Center (changed to IBC)
NBCCEDP National Breast and Cervical Cancer Early Detection Program
NBFAC National Bioforensic Analysis Center (merged into NBACC)
NBHQF National Behavioral Health Quality Framework (unable to verify 3/19; older link archive)
NBI National Bridge Inventory
NBIB National Background Investigations Bureau (merged into DCSA)
NBIC National Biosurveillance Integration Center
NBII National Biological Information Infrastructure (defunct as of 1/12)
NBIS National Bridge Inspection Standards
NBL New Brunswick Laboratory (older link archive)
NBM National Broadband Map (discontinued 12/18; older link archive; replaced by Fixed Broadband Deployment map)
NBO NOAA Budget Office (older link archive)
NBPI Northern Border Prosecution Initiative (unable to verify 5/18)
NBR National Bison Range
NBRC Northern Border Regional Commission
NBS National Beneficiary Survey
NBSB National Biodefense Science Board (changed to NPRSB; reverted back to NBSB)
NBSDB National Building Stone Database
NBTCC National Biological Threat Characterization Center (merged into NBACC)
NCA National Cemetery Administration | National Climate Assessment
NCA4 Fourth National Climate Assessment
NCACA National Capital Arts and Cultural Affairs
NCADAC National Climate Assessment & Development Advisory Committee
NCANDS National Child Abuse and Neglect Data System
NCAP New Car Assessment Program
NCAR National Center for Atmospheric Research
NCASC National Climate Adaptation Science Center (older link archive; archive2)
NCATS National Center for Advancing Translational Sciences
NCAUR National Center for Agricultural Utilization Research
NCAVC National Center for the Analysis of Violent Crime
NCBDDD National Center on Birth Defects and Developmental Disabilities (older link archive)
NCBI National Center for Biotechnology Information
NCCA National Coastal Condition Assessment
NCCAD National Counter-Improvised Explosive Device (IED) Capabilities Analysis Database (older link archive)
NCCAM National Center for Complementary and Alternative Medicine (changed to NCCIH)
NC CASC North Central Climate Adaptation Science Center (older link archive; archive2)
NCCC National Civilian Community Corps (older link archive)
NCCCP National Comprehensive Cancer Control Program
NCCDPHP National Center for Chronic Disease Prevention and Health Promotion (older link archive)
NCCIC National Child Care Information and Technical Assistance Center (defunct as of 8/11)
NCCIES National Climate Change Interpretation and Education Strategy
NCCIH National Center for Complementary and Integrative Health
NCCOE National Cybersecurity Center of Excellence
NCCOS National Centers for Coastal Ocean Science
NCCR National Coastal Condition Reports
NCCS National Center for Computational Sciences (changed to OLCF)
NC CSC North Central Climate Science Center (changed to NC CASC)
NCCT National Center for Computational Toxicology (changed to CCTE)
NCCV National Climate Change Viewer (older link archive)
NCCWSC National Climate Change and Wildlife Science Center (changed to NCASC)
NCD National Council on Disability | Noncommunicable Diseases
NCDC National Climatic Data Center (merged into NCEI)
NCDDC National Coastal Data Development Center (merged into NCEI)
NCDF National Center for Disaster Fraud
NCDRST NIOSH Center for Direct Reading and Sensor Technologies
NCEA National Center for Environmental Assessment (unable to verify 12/19) | National Center on Elder Abuse
NCEC National Climate Extremes Committee
NCEE National Center for Education Evaluation and Regional Assistance | National Center for Environmental Economics
NCEH National Center for Environmental Health
NCEHC National Center for Ethics in Health Care
NCEI National Centers for Environmental Information
NCEM National Center for Electron Microscopy (older link archive)
NCEP National Centers for Environmental Prediction | National Cholesterol Eduation Program (unable to verify 10/14)
NCER National Center for Education Research | National Center for Environmental Research (unable to verify 12/19)
NCES National Center for Education Statistics
NCETR National Center for Explosives Training and Research (older link archive)
NCEZID National Center for Emerging and Zoonotic Infectious Diseases
NCFI National Computer Forensics Institute (older link archive)
NCFO National Census of Ferry Operators (older link archive; archive2)
NCFS National Commission on Forensic Science (defunct; older link archive)
NCFY National Clearinghouse on Families & Youth (older link archive)
NCGMP National Cooperative Geologic Mapping Program (older link archive)
NCHHSTP National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention
NCHIP National Criminal History Improvement Program
NCHM National Center for Health Marketing (changed to Health Communication and Social Marketing)
NCHS National Center for Health Statistics
NCHSTP National Center for HIV, STD, and TB Prevention (changed to NCHHSTP)
NCHWA National Center for Health Workforce Analysis (older link archive)
NCI National Cancer Institute
NCIC National Crime Information Center
NCID National Center for Infectious Diseases (defunct; absorbed by NCHHSTP, NCIRD, NCPDCID, and NCZVED) |
National Court Interpreter Database
NCIPC National Center for Injury Prevention and Control (older link archive)
NCIRC National Criminal Intelligence Resource Center
NCIRD National Center for Immunization and Respiratory Diseases
NCIX Office of the National Counterintelligence Executive (merged with NCSC)
NCJRS National Criminal Justice Reference Service
NCLB No Child Left Behind
NCLIS National Commission on Libraries and Information Science (defunct as of 3/08)
NCMHD National Center on Minority Health and Health Disparities (changed to NIMHD)
NCMRR National Center for Medical Rehabilitation Research
NCMVS NIOSH Center for Motor Vehicle Safety (changed to CMVS)
NCNR NIST Center for Neutron Research (older link archive)
NCO NCEP Central Operations
NCOD National Contaminant Occurrence Database (older link archive; archive2)
NCORP NCI Community Oncology Research Program
NCP Nat'l Center for Health Promotion & Disease Prevention | Nat'l Oil & Hazardous Substances Pollution Contingency Plan
NCPAW National Center for Productive Aging and Work
NCPC National Capital Planning Commission | National Counterproliferation Center (older link archive)
NCPDCID National Center for Preparedness, Detection, and Control of Infectious Diseases (merged into NCEZID)
NCPHI National Center for Public Health Informatics (changed to PHITPO, then PHSIPO)
NCPPCC National Crime Prevention and Privacy Compact Council
NCPS National Center for Patient Safety
NCPTSD National Center for Posttraumatic Stress Disorder (changed to PTSD)
NCPTT National Center for Preservation Technology and Training
NCPV National Center for Photovoltaics
NCPW National Consumer Protection Week (older link archive)
NCR National Capital Region
NCRA NCI Council of Research Advocates
NCRAR National Center for Rehabilitative Auditory Research
NCRC National Climate-Computing Research Center | Office of National Capital Region Coordination (older link archive; archive2)
NCRDS National Coal Resources Data System (older link archive)
NCRFO National Center for Radiation Field Operations
NCRL NOAA Central and Regional Libraries
NCRMP National Coral Reef Monitoring Program
NCRPIS North Central Regional Plant Introduction Station
NCRR National Center for Research Resources (defunct; see org. history)
NCS National Children's Study (older link archive) | National Clandestine Service | National Communications System (changed to OEC) | National Compensation Survey
NCSA National Center for Statistics and Analysis (older link archive; archive2)
NCSC National Counterintelligence and Security Center (older link archive)
NCSD National Cyber Security Division (unable to verify 12/13)
NCSER National Center for Space Exploration Research (defunct) | National Center for Special Education Research
NCSES National Center for Science and Engineering Statistics
NCSS National Cooperative Soil Survey
NCSSLE National Center on Safe Supportive Learning Environments
NCTC National Conservation Training Center | National Counterterrorism Center (older link archive)
NCTIC National Center for Trauma-Informed Care (unable to verify 3/19)
NCTR National Center for Toxicological Research (older link archive) | NOAA Center for Tsunami Research
NCTSI National Child Traumatic Stress Initiative
NCUA National Credit Union Administration
NCVHS National Committee on Vital and Health Statistics
NCVRW National Crime Victims' Rights Week (older link archive)
NCVS National Crime Victimization Survey
NCZVED National Center for Zoonotic, Vector-Borne, and Enteric Diseases (merged into NCEZID)
NDA National Institute of Mental Health Data Archive
NDACC Network for the Detection of Atmospheric Composition Change
NDAR National Database for Autism Research (merged into NDA)
NDB NIH Data Book
NDBC National Data Buoy Center
NDC National Declassification Center | National Drug Code Directory (older link archive)
NDDS Narcotic and Dangerous Drug Section
NDEP National Diabetes Education Program (ceased 2019; older link archive; archive2) | National Digital Elevation Program (unable to verify 9/16)
N-DEx Law Enforcement National Data Exchange
NDF Office of the Nonproliferation and Disarmament Fund (older link archive; archive2)
NDFD National Digital Forecast Database (older link archive; archive2)
NDI National Death Index | National Digital Initiatives
NDIC National Drug Intelligence Center (defunct as of 6/12)
NDIIPP National Digital Information Infrastructure and Preservation Program
NDL Nutrient Data Laboratory (changed to MAFCL; older link archive; archive 2)
NDLP National Digital Library Program
NDMS National Disaster Medical System
NDNP National Digital Newspaper Program
NDOP National Digital Orthoimagery Program (unable to verify 9/16)
NDPC National Domestic Preparedness Consortium
NDR National Driver Register
NDRC National Disaster Resilience Competition
NDRF National Disaster Recovery Framework (older link archive)
NDRPD National Disaster Recovery Program Database (unable to verify 5/15)
NDS National Defense Strategy
NDSA National Digital Stewardship Alliance
NDSS National Diabetes Surveillance System
NDW National Data Warehouse (older link archive)
NDWAC National Drinking Water Advisory Council
NE Nuclear Engineering Division | Office of Nuclear Energy
NEA Bureau of Near Eastern Affairs (older link archive) | National Endowment for the Arts
NEAC Nuclear Energy Advisory Committee (older link archive)
NEB Nutritional Epidemiology Branch (changed to MEB)
NEC National Economic Council (defunct or inactive 1/17, WH transition)
NE CASC Northeast Climate Adaptation Science Center (older link archive; archive2)
NECP National Emergency Communications Plan (older link archive; archive2)
NE CSC Northeast Climate Science Center (changed to NE CASC)
NED NIH Enterprise Directory
NEDM National Education Data Model (unable to verify 9/16)
NEDSS National Electronic Disease Surveillance System
NEEAC National Environmental Education Advisory Council (older link archive)
NEEDS National Electric Energy Data System
NEEMO NASA Extreme Environment Mission Operations
NEESPI Northern Eurasia Earth Science Partnership Initiative (older link archive)
NEFOP Northeast Fisheries Observer Program (older link archive)
NEFSC Northeast Fisheries Science Center (older link archive)
NEGP National Education Goals Panel (defunct; UNT has archived some material)
NEH National Endowment for the Humanities
NEHRP National Earthquake Hazards Reduction Program
NEI National Export Initiative (unable to verify 1/20; older link archive) | National Eye Institute
NEIC National Earthquake Information Center (older link archive) | National Enforcement Investigations Center
NEISS National Electronic Injury Surveillance System (older link archive)
NEJAC National Environmental Justice Advisory Council
NEL Nutrition Evidence Library (changed to NESR; older link archive)
NEMESIS National Exotic Marine and Estuarine Species Information System
NEMI National Environmental Methods Index
NEMSAC National EMS Advisory Council
NEO Near-Earth Object Program (defunct as of 4/17; see CNEOS)
NEON National Ecological Observatory Network
NEP National Estuary Program
NEPA National Environmental Policy Act
NEPAG NASA Electronic Parts Assurance Group
NEPHTN National Environmental Public Health Tracking Network
NEPIS National Environmental Publications Information System (merged into NSCEP)
NEPP NASA Electronic Parts and Packaging
NERFC Northeast River Forecast Center
NERI National Estuaries Restoration Inventory (unable to verify 2/18)
NERL National Exposure Research Laboratory (unable to verify 12/19)
NERRS National Estuarine Research Reserve System
NERSC National Energy Research Scientific Computing Center
NESC NASA Engineering and Safety Center
NESDIS National Environmental Satellite, Data, and Information Service
NESR Nutrition Evidence Systematic Review
NESS Office of Nuclear Energy, Safety and Security (older link archive; archive2)
NET New Electronic Titles
NETL National Energy Technology Laboratory
NEUP Nuclear Energy University Programs (unable to access/verify 8/20)
NEW Native Employment Works
NEW VISTAS Neighborhood Enrichment with Vision Involving Services, Treatment, and Supervision (older link archive)
NEX NASA Earth Exchange (unable to access 1/20)
NFA National Fire Academy | Non-Federal Audit Program
NFC National Finance Center
NFCSP National Family Caregiver Support Program (older link archive)
NFD National Fossil Day (older link archive)
NFHL National Flood Hazard Layer (older link archive; archive2)
NFIP National Flood Insurance Program (older link archive)
NFIRS National Fire Incident Reporting System
NFJP National Farmworker Jobs Program (older link archive)
NFLIS National Forensic Laboratory Information System (older link archive)
NFOP National Fugitive Operations Program
NFPORS National Fire Plan Operations and Reporting System
NFPP National Fish Passage Program (older link archive)
NFTTU National Firearms and Tactical Training Unit (changed to OFTP)
NFWPCAS National Fish, Wildlife, and Plants Climate Adaptation Strategy (older link archive)
NGA National Gallery of Art
NGAC National Geospatial Advisory Committee
NGC National Gang Center | National Guideline Clearinghouse (discontinued 7/18; see GAM)
NGCE National Geospatial Center of Excellence
NGDC National Geophysical Data Center (merged into NCEI)
NGEE Arctic Next-Generation Ecoexperiments Arctic
NGEE Tropics Next-Generation Excoexperiments Tropics (older link archive)
NGGDPP National Geological and Geophysical Data Preservation Program (older link archive)
NGI Next Generation Identification
NGIC National Gang Intelligence Center
NGMDB National Geologic Map Database
NGP National Geospatial Program (older link archive)
NGRAC National Genetic Resources Advisory Council
NGS National Geodetic Survey
NGTOC National Geospatial Technical Operations Center (older link archive)
NHA National Heritage Area
NIC National Ice Center | National Information Center (older link archive) | National Institute of Corrections | National Intelligence Council (older link archive; archive2; archive3; archive4)
NICE National Initiative for Cybersecurity Education (older link archive)
NICEATM NTP Interagency Center for the Evaluation of Alternative Toxicological Methods (older link archive)
NICHD National Institute of Child Health and Human Development
NICHSR National Information Center on Health Services Research and Health Care Technology (older link archive)
NICS National Instant Criminal Background Check System
NIDA National Institute on Drug Abuse
NIDB NIH Intramural Database
NIDC National Isotope Development Center
NIDCD National Institute on Deafness and Other Communication Disorders
NIDCR National Institute of Dental and Craniofacial Research
NIDDK National Institute of Diabetes and Digestive and Kidney Disease
NIDILRR National Institute on Disability, Independent Living, and Rehabilitation Research (older link archive)
NIDIS National Integrated Drought Information System
NIDRR National Institute on Disability and Rehabilitation Research (changed to NIDILRR)
NIEHS National Institute of Environmental Health Sciences
NIEM National Information Exchange Model
NIF National Ignition Facility
NIFA National Institute of Food and Agriculture
NIFC National Interagency Fire Center
NIFL National Institute for Literacy (defunct; some content continued in LINCS)
NIFTT National Interagency Fuels, Fire, and Vegetation Technology Transfer (absorbed into WFMRDA FFE 02/14)
NIGC National Indian Gaming Commission
NIGMS National Institute of General Medical Sciences
NIH National Institutes of Health
NIHHIS National Integrated Heat Health Information System (older link archive)
NIIC National Incident Information Center (absorbed into NIFC)
NIICD National Interagency Incident Communications Division
NIJ National Institute of Justice (older link archive)
NIMAC National Inventory and Monitoring Applications Center
NIMH National Institute of Mental Health
NIMHD National Institute on Minority Health and Health Disparities
NIMM National Inventory of Marine Mammals
NIMO National Incident Management Organization
NIMS National Incident Management System (older link archive)
NINDS National Institute of Neurological Disorders and Stroke
NINR National Institute of Nursing Research
NIOCCS NIOSH Industry and Occupation Computerized Coding System
NIOGEMS National Indian Oil & Gas Evaluation & Management System (older link archive)
NIOSH National Institute for Occupational Safety and Health
NIP National Immunization Program (changed 6/07 to Vaccines and Immunizations)
NIPA National Income and Product Accounts (older link archive; archive2)
NIPC National Infrastructure Protection Center (merged with IAIP)
NIPP National Infrastructure Protection Plan (older link archive; archive2)
NIS National Identification Services (unable to verify; likely absorbed by PPQ) | National Immunization Survey (older link archive)
NISC National Invasive Species Council
NISIC National Invasive Species Information Center (older link archive)
NIST National Institute of Standards and Technology
NISTIR National Institute of Standards and Technology Interagency Report (older link archive)
NISVS National Intimate Partner and Sexual Violence Survey (older link archive)
NITAAC NIH Information Technology Acquisition and Assessment Center
NITRD Networking and Information Technology Research and Development
NITTF National Insider Threat Task Force (older link archive)
NITT-TA Now Is The Time Technical Assistance Center (unable to verify 3/19)
NIWQP National Irrigation Water Quality Program (unable to verify 8/17)
NJTTF National Joint Terrorism Task Force
NKSIP North Korean Serials Databases
NKUDIC National Kidney and Urologic Diseases Information Clearinghouse (unable to verify 5/15)
NLA National Lakes Assessment
NLAE National Laboratory for Agriculture and the Environment
NLCD National Land Cover Database
NLE National Library of Education | National Library of Energy (discontinued; older link archive)
NLG National Leadership Grants for Libraries (changed to NLG-L)
NLG-L National Leadership Grants for Libraries
NLI National Land Imaging Program (older link archive)
NLIC National Lead Information Center
NLLAP National Lead Laboratory Accreditation Program
NLM National Library of Medicine
NLMS National Longitudinal Mortality Study (older link archive)
NLRB National Labor Relations Board
NLRC National Legal Resource Center (discontinued)
NLS National Library Service for the Blind and Physically Handicapped | National Longitudinal Surveys
NLSI NASA Lunar Science Institute (changed to SSERVI)
NMAfA National Museum of African Art
NMAI National Museum of the American Indian (older link archive)
NMAM NIOSH Manual of Analytical Methods
NMAO NOAA Marine and Aviation Operations (changed to OMAO)
NMB National Mediation Board (older link archive)
NMDB National Mortgage Database
NMFS National Marine Fisheries Service (older link archive)
NMHSS National Mental Health Services Survey (older link archive; archive2)
NMIO National Maritime Intelligence-Integration Office (older link archive)
NMMR National Mine Map Repository
NMMSS Nuclear Materials Management & Safeguards System (older link archive)
NMNH National Museum of Natural History
NMREC National Maritime Resource and Education Center (unable to verify 7/20; older link archive)
NMVTIS National Motor Vehicle Title Information System (older link archive)
NN Public Housing Neighborhood Networks Program (older link archive)
NNAS National Nursing Assistant Survey (older link archive)
NNCO National Nanotechnology Coordination Office
NNCP National Name Check Program (older link archive)
NNCSS National Neurological Conditions Surveillance System (older link archive)
NNDSS National Notifiable Diseases Surveillance System
NNF National Needs Graduate and Postgraduate Fellowship Grants Program
NNHS National Nursing Home Survey (older link archive)
NNI National Nanotechnology Initiative
NNL National Natural Landmarks Program
NN/LM National Network of Libraries of Medicine
NNMI National Network for Manufacturing Innovation (older link archive)
NNSA National Nuclear Security Administration (older link archive)
NP Office of Nuclear Physics (older link archive)
NPAC Office of Nonproliferation and Arms Control (older link archive)
NPALS National Post-acute and Long-term Care Study
NPB National Payroll Branch (changed to PSB)
NPCR National Program of Cancer Registries
NPD National Preparedness Directorate (unable to verify 10/17)
NPDB National Practitioner Data Bank
NPDES National Pollutant Discharge Elimination System
NPDRS National Plant Disease Recovery System (older link archive)
NPDT National Plant Data Team
NPDWR National Primary Drinking Water Regulations (older link archive)
NPG National Portrait Gallery
NPI National Provider Identifier (older link archive)
NPIN National Prevention Information Network
NPIRS National Patient Information Reporting System
NPL National Priorities List
NPMS National Pipeline Mapping System
NPOESS National Polar-orbiting Operational Environmental Satellite System (replaced by JPSS)
NPP Nuclear & Particle Physics Directorate
NPPD National Protection and Programs Directorate (changed to CISA; older link archive)
NPPSD North Pacific Pelagic Seabird Database (older link archive)
NPPTL National Personal Protective Technology Laboratory
NPR National Partnership for Reinventing Government (archived at UNT)
NPRA National Program Retrospective Assessment
NPREC National Prison Rape Elimination Commission (unable to verify 2/18)
NPRSB National Preparedness and Response Science Board (changed back to NBSB)
NPS National Park Service | National Prisoner Statistics Program | National Survey of Older Americans Act Participants | Nonpoint source pollution
NPSAB National Park System Advisory Board
NPSL NASA Parts Selection List
NPTO National Petroleum Technology Office (unable to verify 1/08; likely absorbed into SCNGO)
NPWC National Prevailing Wage Center (older link archive)
NPWRC Northern Prairie Wildlife Research Center (older link archive)
NQMC National Quality Measures Clearinghouse (discontinued 7/18; see GAM)
NQS National Quality Strategy
NR National Register of Historic Places (older link archive)
NRA Natural Resources Analysis Group
NRB Neuroimaging Research Branch (older link archive)
NRC National Revenue Center (older link archive) | Neighborhood Reinvestment Corporation (changed to NeighborWorks America) | Nuclear Regulatory Commission
NRCC National Response Coordination Center
NRCS Natural Resources Conservation Service
NRD National Resource Directory | Nationwide Readmissions Database
NRDA Natural Resource Damage Assessment and Restoration Program
NRDAR Natural Resource Damage Assessment and Restoration Program
NRDP National Rural Development Partnership
NREL National Renewable Energy Laboratory
NREN National Research and Education Network (unable to verify 7/16)
NREPP National Registry of Evidence-based Programs and Practices (discontinued; older link archive; archive2)
NREVSS National Respiratory and Enteric Virus Surveillance System
NRFC National Responsible Fatherhood Clearinghouse
NRI National Resources Inventory | Nationwide Rivers Inventory (older link archive) | Neighborhood Revitalization Initiative (unable to verify 12/19)
NRIC Natural Resource Investment Center (unable to verify 8/17)
NRMC National Risk Management Center (older link archive; archive2; archive3)
NRMRL National Risk Management Research Laboratory (unable to verify 12/19)
NRO National Reconnaissance Office
NRP National Residue Program for Meat, Poultry, and Egg Products
NRPB National Recording Preservation Board
NRPC National Railroad Passenger Corporation (AMTRAK)
NRR Office of Nuclear Reactor Regulation
NRRC Nuclear Risk Reduction Center
NRS National Runaway Safeline | Natural Resources & Science | Northern Research Station
NRRSS National River Restoration Science Synthesis (defunct)
NRSA National Rivers and Streams Assessment
NRSS Natural Resource Stewardship and Science Directorate (older link archive)
NSA National Security Agency
NSAAB National Security Agency Advisory Board (unable to verify 12/20)
NSA/CSS National Security Agency/Central Security Service
NSABB National Science Advisory Board for Biosecurity (unable to verify 7/17)
NSB National Science Board
NSC NASA Safety Center | National Security Council (older link archive)
NSCAW National Survey of Child and Adolescent Well-Being
NSCEP National Service Center for Environmental Publications
NSCG National Survey of College Graduates
NSCH National Survey of Children's Health
NSCL Nanoscale Synthesis and Characterization Laboratory
NSD National Security Division
NSDI National Spatial Data Infrastructure
NSDUH National Survey on Drug Use and Health (older link archive)
NSEB National Security Education Board
NSEERS National Security Entry-Exit Registration System
NSEP National Security Education Program
NSES National Strategy for Electronics Stewardship
NSF National Science Foundation
NSFG National Survey of Family Growth (older link archive)
NSGO National Sea Grant Office
NSIA National Security and International Affairs Division (defunct or inactive 1/17, WH transition)
NSID National Security Investigations Division
NSIDC National Snow and Ice Data Center Distributed Active Archive Center (older link archive; archive2)
NSIP National Streamflow Information Program (changed to FPS) | Nutrition Services Incentive Program (unable to verify 3/18)
NSISS National Strategy for Information Sharing and Safeguarding (unable to verify 2/18)
NSLDS National Student Loan Data System (unable to verify 2/20; likely merged into
NSLP National School Lunch Program (older link archive)
NSLS National Synchrotron Light Source
NSLTCP National Study of Long-Term Care Providers (changed to NPALS)
NSMBB Newborn Screening and Molecular Biology Branch
NSMP National Strong-Motion Project
NSNSD Natural Sounds and Night Skies Division
NSOPR National Sex Offender Public Registry (changed to NSOPW)
NSOPW Dru Sjodin National Sex Offender Public Website
NSP Neighborhood Stabilization Program
NSPD National Security Professional Development
NSR New Source Review
NSRCF National Survey of Residential Care Facilities (older link archive)
NSRE National Survey on Recreation and the Environment
NSRL NASA Space Radiation Laboratory
NSS National Security Science | National Settlement Service | National Shelter System
NSSATS National Survey of Substance Abuse Treatment Services (older link archive; archive2)
NSSC NASA Shared Services Center
NSSE National Special Security Events
NSSL National Severe Storms Laboratory
NSSP National Syndromic Surveillance Program
NST Nanoscience and Technology Division
NSTAC National Security Telecommunications Advisory Committee (older link archive; archive2)
NSTC National Science and Technology Center (changed to NOC) | National Science and Technology Council (defunct or inactive 1/17, WH transition)
NSTIC National Strategy for Trusted Identities in Cyberspace (changed to TIG)
NSTS National Source Tracking System
NSTX National Spherical Torus Experiment
NSU National Security Unit
NSWP National Space Weather Program
NTA National Taxpayer Advocate (changed to TAS)
NTAC National Threat Assessment Center
NTAD National Transportation Atlas Database (older link archive)
NTAS National Terrorism Advisory System
NTC National Training Center (older link archive)
NTD National Transit Database (older link archive) | Neglected Tropical Diseases
NTED National Training and Education Division (older link archive; archive2)
NTER National Training & Education Resource
NTES National Training and Education System (unable to verify 5/20; older link archive)
NTHMP National Tsunami Hazard Mitigation Program
NTIA National Telecommunications and Information Administration
NTID National Technical Institute for the Deaf (older link archive)
NTIS National Technical Information Service
NTL National Transportation Library
NTNFC National Technical Nuclear Forensics Center
NTP National Toxicology Program
NTRC Nanotechnology Research Center | National Transportation Research Center (older link archive)
NTRL National Technical Reports Library
NTRS NASA Technical Reports Server
NTSB National Transportation Safety Board
NTSIP National Toxic Substance Incidents Program
NTSS NASA Technical Standards System
NTTAC National Training and Technical Assistance Center for Child, Youth and Family Mental Health
NTTO National Travel and Tourism Office
NTWC National Tribal Water Council (older link archive) | National Tsunami Warning Center (older link archive)
NUCMC National Union Catalog of Manuscript Collections
NUPO National Unmanned Aircraft Systems Program Office
NURP National Undersea Research Program (merged with OE to create OER)
NuSTAR Nuclear Spectroscopic Telescope Array
NUSTL National Urban Security Technology Laboratory
NVAC National Vaccine Advisory Committee (older link archive)
NVAP National Veterinary Accreditation Program
NVC National Vetting Center
NVD National Vulnerability Database
NVDRS National Violent Death Reporting System (older link archive)
NVFEL National Vehicle and Fuel Emissions Laboratory
NVHAP National Viral Hepatitis Action Plan
NVMC National Vessel Movement Center (older link archive)
NVP National Vaccine Plan
NVPO National Vaccine Program Office (older link archive; archive2)
NVSL National Veterinary Services Laboratories
NVSN New Vaccine Surveillance Network
NVSR National Vital Statistics Reports
NVSS National Vital Statistics System (older link archive)
NVTC National Virtual Translation Center
NWBC National Women's Business Council
NWCA National Wetland Condition Assessment
NW CASC Northwest Climate Adaptation Science Center (older link archive; archive2)
NWCC National Water and Climate Center
NWCG National Wildfire Coordinating Group
NW CSC Northwest Climate Science Center (changed to NW CASC)
NWDP National Wildlife Disease Program
NWFHS National Wild Fish Health Survey
NWFHSDb National Wild Fish Health Survey Database (older page archive)
NWFP Northwest Forest Plan (older link archive)
NWFSC Northwest Fisheries Science Center (older link archive)
NWHC National Wildlife Health Center (older link archive)
NWHIC National Women's Health Information Center
NwHIN Nationwide Health Information Network (unable to verify 8/18; older link archive)
NWI National Wetlands Inventory
NWIS National Water Information System
NWMDE Nonproliferation of Weapons of Mass Destruction Expertise (inactive or defunct 2/17)
NWPG National Water Program Guidance
NWRC National Wetlands Research Center (changed to WARC) | National Wildlife Research Center
NWRS National Wildlife Refuge System
NWS National Weather Service
NWTRB Nuclear Waste Technical Review Board
NYGS National Youth Gang Survey
NYTD National Youth in Transition Database
NYTS National Youth Tobacco Survey
NZERTF Net-Zero Energy Residential Test Facility