Skip to Main Content

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

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

S

SAE Office of Systems Architecture and Engineering | State and Metro Area Employment, Hours, & Earnings
SAER LLNL Site Annual Environmental Report
SAFARIS Spatial Analytic Framework for Advanced Risk Information Systems
SAFECOM Aviation Safety Communique | Safety Communications
SAFE-ITR Sexual Assault Forensic Evidence – Inventory, Tracking, and Reporting Program
SAFE MAP Schools Are Far Enough Map
SafeMTS Safe Maritime Transportation System
SafeOCS Safe Outer Continental Shelf
SAFER Safety and Fitness Electronic Records | Staffing for Adequate Fire & Emergency Response Grants Program
SAGE Stratospheric Aerosol and Gas Experiment
SAHIE Small Area Health Insurance Estimates
SAI Student Aid Index | Surface Awareness Initiative
SAIF Saving Associate Insurance Fund (merged into DIF)
SAIG Student Aid Internet Gateway
SAIPE Small Area Income & Poverty Estimates
SAIR Situational Awareness and Incident Response program
SAKI Sexual Assault Kit Initiative
SALI SEC Action Lookup for Individuals
SALPIE Small and Less Populous Island Economies Initiative
SAM Shared Accounting Module | System Advisor Model | System for Award Management
SAMHDA Substance Abuse and Mental Health Data Archive
SAMHSA Substance Abuse and Mental Health Services Administration
SAMS Secure Access Management Services
SanctSound Sanctuary Soundscape Monitoring Project
SANDS Semi-Automated Non-response Detection for Surveys
SANE Sexual Assault Nurse Examiner
SAO Smithsonian Astrophysical Observatory
SAOP Senior Agency Officials for Privacy (unable to verify 2/18)
SAORM Senior Agency Officials for Records Management
SAP Scientific Advisory Panel | Standard Application Process | Survey of Adults on Probation
SAPP State Alternative Plan Program
SB Space Biology Program | Surgery Branch
SBA Small Business Administration | Small Business Assistance Program
SBB Statistical Briefing Book
SBC Structural Biology Center
SBCC Southwest Border Coordination Center
SBCC-MIC Southwest Border Coordination Center Migration Information Center
SBDR ScienceBase Data Release Tool
SBE Directorate for Social, Behavioral and Economic Sciences
SBI State Broadband Initiative
SBIC Small Business Investment Company
SBIP Sustainable Buildings Implementation Plan
SBIR Small Business Innovation Research
SBIR/STTR Small Business Innovation Research/Small Business Technology Transfer
SBIRT Screening, Brief Intervention, and Referral to Treatment
SBLF Small Business Lending Fund
SBLS Small Business Lending Survey
SBMH School-Based Mental Health Services Grant
SBO Survey of Business Owners and Self-Employed Persons
SBP School Breakfast Program | Section on Behavioral Pediatrics (unable to verify 10/19)
SBPS Small Business Pulse Survey (terminated 6/22; succeeded by BTOS)
SBRB Social and Behavioral Research Branch
SBRL Special Bacteriology Reference Laboratory
SBSB Social and Behavioral Sciences Branch
SBSC Southwest Biological Science Center
SB/SE Small Business/Self-Employed Division
SBST Social & Behavioral Sciences Team
SC NASA Science Council | Office of Science | Soil Series Classification Database
SC2 Strong Cities, Strong Communities Initiative (unable to verify 2/18)
SCA Bureau of South and Central Asian Affairs | Service Center Agencies
SCAAP State Criminal Alien Assistance Program
SCALEUP Seeding Critical Advances for Leading Energy technologies with Untapped Potential Program
SCAMP Seafloor Compliance, Assessment, and Monitoring Program
SCaN Space Communications and Navigation
SCAN Soil Climate Analysis Network
SCAP Security Content Automation Protocol
SCAS Small Community Advisory Subcommittee
SCB Standard Code Book | Survey of Current Business
SCBGP Specialty Crop Block Grant Program
SCC Sector Coordinating Council | Spray Combustion Consortium | Strategic Center for Coal (unable to verify 11/16)
SC CASC South Central Climate Adaptation Science Center
S/CCI Office of the Coordinator for Cyber Issues (replaced by CDP)
SCCN Seized Currency Collection Network
SC CSC South Central Climate Science Center (changed to SC CASC)
SCCT Supply Chain Control Tower Program (unable to verify 4/24)
SCDCD Scientific Computing and Data Curation Division
SCDM Superfund Chemical Data Matrix
SCEC State Climate Extremes Committee
SCED School Courses for the Exchange of Data
SCEP Office of State and Community Energy Programs
SCF Strengthening Communities Fund (unable to verify) | Survey of Consumer Finances | Swift, Certain, and Fair
SCG Security Classification Guide
SCHIP State Children's Health Insurance Program (unable to verify 9/24)
SCI Special Crash Investigations | Specialty Crops Inspection (unable to verify 8/17) | Sustainable Communities Initiative
SciAct Science Activation
SciDAC Scientific Discovery through Advanced Computing
SCIL Safer Chemical Ingredients List
SCIP Office of School Choice and Improvement Programs
SCIS SIRU Case Index System
SCISRS Securing Compartmented Information with Smart Radio Systems
SCLEA Survey of Campus Law Enforcement Agencies
SC-LOC Supply Chain Logistics Operation Cell (unable to verify 7/24)
SCM Security Components and Mechanisms Group
SCNGO Strategic Center for Natural Gas and Oil (unable to verify 2/18)
SCO Office of Strategic Communications and Outreach (unable to verify 9/23) | Special Counsel's Office | Standards Coordination Office
SCOPS Service Center Operations Directorate
SCOR Strategic Capital and Operational Research (unable to verify 5/23)
SCOT Sandia Cyber Omni Tracker
SCOTUS Supreme Court of the United States
SCP Specialty Crops Program
S/CPR Office of the Chief of Protocol
SCPS State Court Processing Statistics
SCRAM Support Center for Regulatory Atmospheric Modeling
SCRC Southeast Crescent Regional Commission | Supply Chain Resilience Center
SCRCG United States-United Kingdom-Australia Supply Chain Resilience Cooperation Group
SCRHCFI Sustainable and Climate Resilient Health Care Facilities Initiative
SCRI Specialty Crop Research Initiative
SCS School Crime Supplement | Shared Cybersecurity Services
SCSD Smart Connected Systems Division
SCSEP Senior Community Service Employment Program
S/CT Office of the Coordinator for Counterterrorism (changed to CT)
SD Storm Data | Strategic Deterrence
SDAC Solar Data Analysis Center
SDAMs Streamflow Duration Assessment Methods
SEA Tool Sea Level Evaluation and Assessment Tool
SEAB Secretary of Energy Advisory Board
SEAC Southeast Archaeological Center | Student Engagement and Attendance Center
SEAESRT Spacecraft Environmental Anomalies Expert System – Real Time
SEAFiSh Southeast Abundance of Fish and Shrimp Data Visualizer
SEALS Sealant Efficiency Assessment for Locals and States
SEAPortal Secure Electronic Access Portal
SEARCH Special Evaluation Assistance for Rural Communities and Households | Study of Environmental Arctic Change
SEAS Special Envoy to Monitor and Combat Anti-Semitism
SEC Office of Security | Securities and Exchange Commission | Space Environment Center (changed to SWPC)
SECA Solid State Energy Conversion Alliance (unable to verify 8/18)
SE CASC Southeast Climate Adaptation Science Center
SecEA Security Executive Agent
SE CSC Southeast Climate Science Center (changed to SE CASC)
SED Safety Enforcement Division | Sciences and Exploration Directorate | Stakeholder Engagement Division | Statistical Engineering Division | Survey of Earned Doctorates | Systems Exposure Division (unable to verify 12/19)
SEDAC Socioeconomic Data and Applications Data Center
SEDAR SouthEast Data, Assessment, and Review
SEDD State Emergency Department Databases
SEDS Social & Economic Development Strategies | State Energy Data System | Statistical Enrollment Data System | Stochastic Energy Deployment System
SEE Senior Environmental Employment Program | Space Environments and Effects (discontinued)
SEE Action State and Local Energy Efficiency Action Network
SEED Systems Engineering & Evaluation Directorate (unable to verify 5/16; likely changed to Assessments Directorate, archived)
SEEP State Energy Extension Partnership (unable to verify 8/24)
SEER Surveillance, Epidemiology, and End Results
SEES Science, Engineering and Education for Sustainability (unable to verify 12/22)
SEFL Supervision, Enforcement, and Fair Lending Division
SI Office of Services and Investment | Smithsonian Institution
SIAT Survey of International Air Travelers
SIBR Standards Incorporated by Reference database
SIC Standard Industrial Classification
SICP Office of Social Innovation and Civic Participation (defunct or inactive 1/17, WH transition)
SID Security Investigative Database | State Inpatient Databases | Strategic Intelligence Division | Systems Integration Division
SIES Office of Strategic Industries & Economic Security
SIF Sensitive Instrument Facility | Social Innovation Fund
SIFCF Survey of Inmates in Federal Correctional Facilities
SI-FTAC Scientific Integrity Fast-Track Action Committee
SIG School Improvement Grants (unable to verify 11/23)
SIGAR Special Inspector General for Afghanistan Reconstruction
SIGPR Special Inspector General for Pandemic Recovery
SIGTARP Office of the Special Inspector General for the Troubled Asset Relief Program (defunct per 7/24 CIGFO report)
SIID Safety and Incident Investigations Division
SIIM Office of Security, Intelligence, and Information Management (unable to verify 4/24)
SILJ Survey of Inmates in Local Jails
SIMP Seafood Import Monitoring Program
SimPLER Simulation Program for Leveraging and Evaluating Resources
SIMRU Southern Insect Management Research Unit
SIND Solar Integration National Dataset
SINTRA Space Debris Identification and Tracking
SIO Survey of Irrigation Organizations
SIOC Strategic Information and Operations Center
SIPP Survey of Income and Program Participation
SIR Severe Injury Reports
SIRIS Smithsonian Institution Research Information System
SIS Science and Information Subcommittee | Specialized Information Services (discontinued 6/19) | Species Information System (public portal no longer available 8/19) | Statistics in Schools
SISB Strengthening Immunization Systems Branch (unable to verify 6/15)
SISCF Survey of Inmates in State Correctional Facilities
SIT State Inventory Tool
SITC Smuggling Interdiction and Trade Compliance
SITE Solutions for the Information Technology Enterprise (unable to verify 8/21)
SITES Smithsonian Institution Traveling Exhibition Service
SitS Signals in the Soil
SIWDB Strategic Information and Workforce Development Branch
SIWRO Secretary's Indian Water Rights Office
SJI State Justice Institute
SJIC Survey of Jails in Indian Country
SJS State Justice Statistics Program
SLAA State Library Administrative Agency Survey
SLAC Stanford Linear Accelerator Center
SLAD State and Local Assistance Programs Division
SLAITS State and Local Area Integrated Telephone Survey
SLATT State and Local Anti-Terrorism Training Program
SLC Drug Safety Labeling Changes (changed to SrLC) | Smaller Learning Communities (unable to verify 11/23)
SLDS Statewide Longitudinal Data Systems Grant Program
SLEGU Survey of Law Enforcement Gang Units
SLGS State and Local Government Series
SLIGP State and Local Implementation Grant Program
SLJ Survey of Large Jails
SLOPE State and Local Planning for Energy
SLPSRA Division of Space Life and Physical Sciences Research and Applications (changed to BPS)
SLR Sea Level Rise
SLS Space Launch System
SLSC State and Local Solution Center
SLSDC Saint Lawrence Seaway Development Corporation
SLTT State, Local, Tribal, and Territorial Cyber Information Sharing Program
SLVAS Screening Level Vulnerability Assessment Survey (unable to verify 2/19)
SMA Safety and Mission Assurance Directorate (unable to verify 12/23) | SBE Office of Multidisciplinary Activities
SMAD Spinal Cord and Musculoskeletal Disorders and Assistive Devices Program (unable to verify 8/17)
SMAP Soil Moisture Active Passive
SMaRT Science Models and Research Tools
SMART Office of Sex Offender Sentencing, Monitoring, Apprehending, Registering, and Tracking | Selected Metropolitan/Micropolitan Area Risk Trends | Space-based Machine Automated Recognition Technique
SMART ePANTS Smart Electrically Powered and Networked Textile Systems
SMB Specimen Management Branch (unable to verify 7/20)
SMCD Satellite Meteorology and Climatology Division
SMD Science Mission Directorate
SMDS Smart Monitoring and Diagnostic System (unable to verify 9/23)
SME-QA Subject Matter Expert Qualification Assessments
SMG Spaceflight Meteorology Group
SMHPP Spot Market Hog Pandemic Program (site archived 5/22)
SMM Sustainable Materials Management
SMMD Shape Memory Materials Database | Solar Mirror Materials Database
SMP Senior Medicare Patrol | Special Milk Program
SMR Small Modular Reactor
SMS Safety Management System, FAA | Safety Management System, FS
SMSR Safety and Mission Success Review
SMT Scars, Marks, and Tattoos
SMVF TA Service Members, Veterans, and their Families Technical Assistance Center
SN Shared Neutrals
SNAP Significant New Alternatives Policy | Southern Nevada Agency Partnership (unable to verify 3/19) | Supplemental Nutrition Assistance Program
SNAP-Ed Supplemental Nutrition Assistance Program – Education
SNAPP Synchronized NCEI Archive Projects Program
SNARC Harry K. Dupree Stuttgart National Aquaculture Research Center
SNCAFAC Sustained National Climate Assessment Federal Advisory Committee (also, ACSNCA; defunct 8/17)
SNF VBP Skilled Nursing Facility Value-Based Purchasing Program
SNL Sandia National Laboratories
SNMVC Stonewall National Monument Visitor Center
SNOTEL Snowpack Telemetry
SNP Space Nuclear Propulsion | Special Needs Plan
SNS SAFECOM Nationwide Survey | Spallation Neutron Source | Strategic National Stockpile
SNUN Significant New Use Notice
SNUR Significant New Use Rules
SOAR SSI/SSDI Outreach, Access, and Recovery
SOC HHS Secretary’s Operations Center (unable to verify 4/24) | Standard Occupational Classification | Survey of Construction
SOCC Sustainable Operations and Climate Change Branch
SOCCR State of the Carbon Cycle Report (unable to verify 8/23)
SOCCR2 2nd State of the Carbon Cycle Report
SOCD Satellite Oceanography and Climatology Division
SOCDS State of the Cities Data Systems
SOCO Standards of Conduct Office
S/OCR Office of Civil Rights
SOD Branch of Safety of Dams | Superintendent of Documents
SOD-PPS Superintendent of Documents Public Policy Statements
SOFA Switching Operations Fatality Analysis Working Group )
SOFC Solid Oxide Fuel Cell Program
SOFIE Solid Fuel Ignition and Extinction
SOG Border Patrol Special Operations Group
SOGI Sexual Orientation and Gender Identity Research Group (unable to verify 3/24, possibly replaced by SOGISC)
SOGISC Sexual Orientation, Gender Identity, and Sex Characteristics Interest Group
SOGW Subcommittee on Ground Water (unable to verify 3/24)
SOHO Solar and Heliospheric Observatory
SOHSS Safety and Occupational Health Study Section
SOI Source of Income | Statistics of Income
SOII Survey of Occupational Injuries and Illnesses
soilSHOP Soil Screening, Health, Outreach, and Partnership
SOL Office of the Solicitor
SOMA Survey of Market Absorption of New Multifamily Units
SOMAPI Sex Offender Management Assessment and Planning Initiative
SOMD Space Operations Mission Directorate
SONIC Sound Online Inventory and Catalog
SOP Street Outreach Program
SOPD Sector Outreach and Programs Division (likely changed to Sector Management)
SOPR Senate Office of Public Records (changed to OPR)
SOPS Surveys on Patient Safety Culture
SoR System of Registries
SORCE Solar Radiation and Climate Experiment
SORD Special Operations and Research Division
SORNs System of Records Notices
SORS Suspicious Orders Report System
SORTIE Scintillation Observations & Response of the Ionosphere to Electrodynamics
SOS Safe Online Surfing | Science on a Sphere | Seeds of Success | Subcommittee on Sedimentation (unable to verify 3/24)
SOSI Subcommittee on Scientific Integrity
SoSOA System of Systems Operational Analytics
SOST Subcommittee on Ocean Science and Technology
SOT Services for Survivors of Torture
SOTC State of the Climate (changed to Monthly Report)
SOURCE Simulation of Opioid Use, Response, Consequences, and Effects
SOWFA Simulator fOr Wind Farm Applications
S/P Policy Planning Staff
SPA Small Project Assistance Program
SPACE STI Prevention Allocation Consequences Estimator | Stochastic Population Analysis for Complex Events (page archived)
SPAN State Physical Activity and Nutrition Program
SPARC Strategic Partners Acquisition Readiness Contract
SPARK SAMHSA’s Program to Advance Recovery Knowledge
SPB Science Policy Branch
SPC Storm Prediction Center
SPD Safety Partnerships Division | Science Policy Division | Special Programs Division (unable to verify 10/14) | Survey of Program Dynamics | Sustainability Performance Division (reverted to SPO)
SPDF Space Physics Data Facility
SPEA Strategic Planning and Economic Analysis (changed to EAO)
SPEAR Safety Performance Enhanced by Analytical Review
SPEC Special Presidential Envoy for Climate
SPECA Secondary Education, Two-Year Postsecondary Education, and Agriculture in the K-12 Classroom Challenge Grants Program
SPEED Special Projects for Equitable and Efficient Distribution (unable to verify 9/21)
SPF Strategic Prevention Framework (unable to verify 5/19)
SPG Coalition Sustainable Productivity Growth Coalition
SPHB Susceptibility and Population Health Branch (unable to verify 12/13)
SPHERES Sequencing for Public Health Emergency Response, Epidemiology and Surveillance
SPHEREx Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer
SPI Office of Economic Sanctions Policy and Implementation | Smart Policing Initiative (changed to Strategies for Policing Innovation, then reverted back to Smart Policing Initiative) | Survey of Prison Inmates
SPI DAT Survey of Prison Inmates Data Analysis Tool
SPIDERS Smart Power Infrastructure Demonstration and Energy Reliability and Security
SPIROLA Spirometry Longitudinal Data Analysis
SPL Substance Priority List
SPLASH Study of Precipitation, the Lower Atmosphere and Surface for Hydrometeorology
SPLP Safer Product Labeling Program (changed to Safer Choice)
SPM Supplemental Poverty Measure
SPO Special Programs Office | Strategic Partnerships Office | Sustainability Performance Office (reverted back from SPD)
SPOREs Specialized Programs of Research Excellence
SPoRT Short-term Prediction Research and Transition Center
SPP School Pulse Panel | Screening Partnership Program | Sustainable Procurement Plan
SPPA Survey of Public Participation in the Arts
SPPC Safety Program for Perinatal Care
SPPE Safety and Pollution Prevention Equipment
SPPO Student Privacy Policy Office
SPPR Office of Strategy, Policy, Planning, and Requirements (unable to verify 4/24)
SPR Strategic Petroleum Reserve
SPRAC Senior Preservation Rental Assistance Contracts
SPRC Suicide Prevention Resource Center
SPRINT Scaling Pandemic Resilience Through Innovation and Technology Challenge | Science, Preparedness & Response, Innovations, and New Technologies | Suicide Prevention Research Impact NeTwork
SPRIRC Suicide Prevention and Response Independent Review Committee
SPRRS Southern Plains Range Research Station (unable to verify 5/23)
SPRUCE Spruce and Peatland Responses Under Climatic and Environmental Change
SPS Secure Payment System
SPSD Satellite Products and Services Division | Standardized Program Structure and Definitions (unable to verify 6/19)
SPSQ IWG Software Productivity, Sustainability, and Quality Interagency Working Group
SPT Strategic Planning Tool
SPTAC Strategic Prevention Technical Assistance Center
SPTAG National Saw Program Technical Advisory Group
SP-TC Sensors and Platforms Technology Center
SPTD Suicide Prevention Trials Database
SPTF State, Private, and Tribal Forestry
SQ-CLASS Business and Professional Classification Survey
SRA Sequence Read Archive
SRA Tool Security Risk Assessment Tool
SRAE Sexual Risk Avoidance Education Program
SRAR Special Representative for Afghanistan Reconciliation (changed to Special Representative for Afghanistan)
SRAS Small Rural Assessment System
SRB Scientific Review Branch | Services Research Branch
SRBC Susquehanna River Basin Commission
SRC Science Research and Collaboration
SRCL Striving Readers Comprehensive Literacy Program (changed to CLSD)
SRCP Sodium Reduction in Communities Program (discontinued)
SRDR Systematic Review Data Repository
SREF Short-Range Ensemble Forecast
SRF Security Response Force | State Review Framework
S/RGA Office of Religion and Global Affairs (unable to verify 6/19)
SRI Soil Resources Inventory
SrLC Drug Safety-related Labeling Changes
SRM Standard Reference Materials | Supervision Risk Management (unable to verify 8/21)
SRMA Sector Risk Management Agencies
SRMC Special Representative to Muslim Communities (unable to verify 6/19)
SRNL Savannah River National Laboratory
SRO Smithsonian Research Online
SRP Superfund Research Program
SRRL Solar Radiation Research Laboratory
SRRS Service Records Retention System
SRRT Southern Rockies Reforestation Tool
SRS Savannah River Site | Southern Research Station | Substance Registry Services | Summary Reporting System (discontinued 1/21) | Water Quality Surveillance and Response System
SRT Solicitation Review Tool
SRTB Science of Research and Technology Branch (unable to verify 11/16)
SRTS Safe Routes to School | Survey Request Tracking Solution (discontinued)
SRWG NASA Sounding Rocket Working Group
SSLE Security, Safety and Law Enforcement Office
SSMA Status of Stocks and Multispecies Assessments
SSO Seamless Summer Option | SLAC Site Office (changed to BASO at SLAC)
SSOAP Sanitary Sewer Overflow Analysis and Planning
SSOCS School Survey on Crime and Safety
SSODv2 Synoptic Summary of the Day Version 2
SSP Office of Safety and Security Policy | Office of Safety and Security Policy (changed to Office of Field Safety, Security, and Infrastructure, then to Office of Safety and Security) | Shared Services Programs | Shelter and Services Program
SSPs Syringe Services Programs
SSPTW Social Security Programs Throughout the World
SSRC Shared Services Resource Catalog (unable to verify 4/22)
SSRP School Support and Rural Programs (unable to verify 10/19)
SSRW Safe Skilled Ready Workforce Program
SSS Selective Service System | Student Support Services
SST Sea Surface Temperature | Small Spacecraft Technology program | Special Studies Team
SS-TC Social Sciences Technology Center
S-STEM Scholarships in Science, Technology, Engineering, and Mathematics
SSTF Subject Summary Tape Files
SSTP Small Spacecraft Technology Program (changed to SST)
SSuN STD Surveillance Network
SSURGO Soil Survey Geographic database
SSV Survey of Sexual Victimization (formerly Survey of Sexual Violence)
SSVF Supportive Services for Veteran Families Program
SSWD Subcommittee on Spatial Water Data (unable to verify 3/24)
SSWR Safe and Sustainable Water Resources Program
STAA Science, Technology Assessment, and Analytics Team
STAC Secretary’s Tribal Advisory Committee
STAG State and Tribal Assistance Grant Programs (unable to verify 1/15)
STAND Siting Tool for Advanced Nuclear Development
STAR Center for Satellite Applications and Research
STARS Spatial Tools for the Analysis of River Systems (unable to verify 10/24)
STAR TREC Standards References and Training Research Committee
STAS Office of the Science & Technology Adviser
STAT Solutions Trust Accountability Tracker
Stat. United States Statutes at Large
STATE State Tobacco Activities Tracking and Evaluation
STATSGO2 Digital General Soil Map of the United States
STAX Stacked Income Protection Plan
STB Science & Technology Branch | Surface Transportation Board
STBG Surface Transportation Block Grant program
STC Annual Survey of State Government Tax Collections | Office of Science and Technology Cooperation | Securing the Cities (pdf)
STCC Signal, Train Control, and Crossings Division
STDs Sexually Transmitted Diseases (changed to STIs)
STEADI Stopping Elderly Accidents, Deaths & Injuries
STEAP Screening Tool for Equity Analysis of Projects
STELA System for Tracking Export License Applications
STEM Safety, Training and Emergency Management Division
STEO Short-Term Energy Outlook
STEP Safe Transportation for Every Pedestrian | Smart Traveler Enrollment Program | State Trade Expansion Program | State Tribal Education Partnership | Supercritical Transformational Electric Power | Sustainable Transportation Education & Partnerships
STEPPS State-Based Epidemiology for Public Health Program Support (unable to verify 2/13)
STEP-UP Secondary Transition to Employment Program – USGS Partnership
STEREO Solar Terrestrial Relations Observatory
STEWARDS Sustaining the Earth's Watersheds, Agricultural Research Data System
STEW-MAP Stewardship Mapping Project
STF Summary Tape File, Census
STGWG State and Tribal Government Working Group
STI Scientific and Technical Information
STIC Scientific and Technical Information Center
STIP Scientific and Technical Information Program | Statewide Transportation Improvement Program
STIP APS Science, Technology, Innovation, and Partnerships Annual Program Statement
STIR/SHAKEN Secure Telephone Identity Revisited/Signature-based Handling of Asserted Information Using toKENs
STIs Sexually Transmitted Infections
STL Special Technologies Laboratory
STLP Short Term Lending Program (unable to verify 8/19)
STMD Space Technology Mission Directorate
STOP Stop Transmission of Polio Program | Strategy for Targeting Organized Piracy (changed to Enforcement Resources)
STORET Storage and Retrieval Data Warehouse (decommissioned 6/18)
STP Science, Technology and Policy | Solar-Terrestrial Physics | Solar Terrestrial Probes
STPC Science and Technology Policy Council (unable to verify 3/18)
STRBase Short Tandem Repeat DNA Internet DataBase
STRGP Space Technology Research Grants Program
STRI Smithsonian Tropical Research Institute
STRIDE Strategic Recruitment, Inclusive Diversity, and Engagement (archived)
STRP Seafood Trade Relief Program (terminated 1/21)
STRS Space Telecommunications Radio System
STRYVE Striving to Reduce Youth Violence Everywhere
STS Second Target Station
STSAC Surface Transportation Security Advisory Committee
STSI State Traffic Safety Information
ST-Sim State-and-transition simulation model
STTR Small Business Technology Transfer
STVM Security Testing, Validation, and Measurement Group