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

S2N	Send2NCEI
S3	Science, Safety, Security \| Strategic Security Sciences Division
S3C	Sustainable Scientific Software Conference
S3VI	Small Spacecraft Systems Virtual Institute
S&PF	State and Private Forestry (changed to SPTF)
S&T	Science and Technology Directorate \| Science & Technology Program
S&TF	Science and Technology Facility
SA	Office of Security Assistance \| Strategic Analysis
SAB	EPA Science Advisory Board
SABER	Statistical Analysis Battery for Epidemiological Research (unable to verify)
SABIT	Special American Business Internship Training
SABRE	Stratospheric Aerosol processes, Budget and Radiative Effects
SABS	School Attendance Boundary Survey
SABT	Special Agent Basic Training
SAC	Small Agency Council \| Special Applications Center \| Systems and Analyses Center
SACC	Science Advisory Committee on Chemicals
SACGHS	Secretary's Advisory Committee on Genetics, Health and Society (unable to verify 7/17)
SACGT	Secretary's Advisory Committee on Genetic Testing (absorbed by SACGHS)
SACHRP	Secretary’s Advisory Committee on Human Research Protections
SACO	Subject Authority Cooperative Program
SACX	Secretary's Advisory Committee on Xenotransplantation (defunct)
SADC	South Asian Digital Collection
SADF	Seized Asset Deposit Fund
SaDIP	Safety Data Improvement Program (unable to verify 6/24)

SAE	Office of Systems Architecture and Engineering \| State and Metro Area Employment, Hours, & Earnings
SAER	LLNL Site Annual Environmental Report (changed to ASER)
SAFARIS	Spatial Analytic Framework for Advanced Risk Information Systems (unable to verify 1/25)
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 (unable to verify 2/25)
SAM	Shared Accounting Module \| System Advisor Model \| System for Award Management
SAMHDA	Substance Abuse and Mental Health Data Archive (merged into SAMHSA Data)
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
SAPRO	Sexual Assault Prevention and Response Office

SAR	Semiannual Report to Congress, IG \| Suspicious Activity Reports Program
SARA	Senior Advisors for Research and Analysis (previously, Service and Advice for Research and Analysis) \| Stock Assessment Results Archive
SARC	Stock Assessment Review Committee (unable to verify 4/20)
SARD	Safety and Assurance Requirements Division (changed to MASCD)
SARE	Sustainable Agriculture Research and Education
SARGDDC	South Africa Regional Global Disease Detection Centre (unable to verify 9/23)
SARI	Stock Assessment Review Index
SARP	Sectoral Applications Research Program (unable to verify 9/23)
SARSAT	Search and Rescue Satellite Aided Tracking
SAS	Science Analytics and Synthesis \| Service Annual Survey \| Surveillance and Aviation Section (unable to verify 8/22) \| Sustainable Agricultural Systems
SASD	State Ambulatory Surgery and Services Databases
SASINF	Stock Assessment Support Information
SASP	Substance Abuse and Suicide Prevention program
SASS	Schools and Staffing Survey
SAT	Save America’s Treasures
SAVE	Saving on a Valuable Education Plan \| Systematic Alien Verification for Entitlement
SAVER	System Assessment and Validation for Emergency Responders Program
SAVIN	Statewide Automated Victim Information and Notification
SAVS	System for Assessing Vulnerability of Species
SAW	Stock Assessment Workshop (unable to verify 4/20)
SAWG	Sustained Assessment Working Group
SAW/RTW	Stay-at-work/Return-to-work
SAWSC	South Atlantic Water Science Center
SAWTI	Santa Ana Winds Threat Index

SB	Space Biology Program \| Surgery Branch
SBA	Small Business Administration \| Small Business Assistance Program
SBATiP	Small Businesses Against Trafficking in Persons
SBB	Statistical Briefing Book
SBC	Structural Biology Center
SBCC	Southwest Border Coordination Center
SBCC-MIC	Southwest Border Coordination Center Migration Information Center
SBCFAC	Small Business Capital Formation Advisory Committee
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 (unable to verify 11/24)
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) \| Small Boat Program
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
SCASDP	Small Community Air Service Development Program
SCB	Standard Code Book \| Survey of Current Business
SCBC	Child Care State Capacity Building Center
SCBGP	Specialty Crop Block Grant Program
SCBI	Smithsonian Conservation Biology Institute
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
SCDF	Scientific Computing and Data Facilities
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 (unable to verify 2/25)
SCG	Security Classification Guide
ScHARe	Science Collaborative for Health disparities and Artificial intelligence bias REduction

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
SciX	Science Explorer
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
SCMF	Service Coordinators in Multifamily Housing program
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
SCOOS	Senior Credit Officer Opinion Survey on Dealer Financing Terms
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 (page archived 1/25)
SCRHCFI	Sustainable and Climate Resilient Health Care Facilities Initiative (unable to verify 1/25; likely replaced by CR4HC)
SCRI	Specialty Crop Research Initiative
SCRP	Secure and Trusted Communications Networks Reimbursement Program
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
SDAT	Spatial Data Access Tool

SDC	Science and Decisions Center \| Science Data Catalog \| State Data Center
SDCC	Scientific Data and Computing Center
SDCF	Scientific Data and Computing Facilities (changed to SCDF)
SDDA	Small Difficult Development Areas
SDDS	School District Demographics System (changed to MapED)
SDE	Substantial Damage Estimator
SDGs	Sustainable Development Goals
SDGG	Socially Disadvantaged Groups Grants
S-DHC	Supplemental Demographic and Housing Characteristics File
SDLP	Small Dollar Loan Program
SDMS	Spatial Data Management System
SDN	Specially Designated Nationals List
SDO	Solar Dynamics Observatory
SDOH	Social Determinants of Health
SDP	Office of Science and Data Policy \| Scientific Diving Program \| Sustainable Development Partnerships (unable to verify 7/20)
SDPI	Special Diabetes Program for Indians
SDR	Science for Disaster Reduction (previously, Subcommittee on Disaster Reduction) \| Survey of Doctorate Recipients
SDRD	Site-Directed Research and Development Program
SDRP	School District Review Program
SDS	Scholarships for Disadvantaged Students \| Standards Development Section
SDVOSB	Service-Disabled Veteran-Owned Small Business
SDWIS	Safe Drinking Water Information System
SEA	Charter School Programs State Educational Agency

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 (unable to verify 2/25) \| 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
SECD	Strategic Economic and Community Development Program
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 (unable to verify 1/25)
SEED	Supporting Effective Educator Development Grant Program \| 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	Standards for Excellence in Education Research \| Surveillance, Epidemiology, and End Results
SEER*Abs	SEER Abstracting Tool
SEER*DMS	SEER Data Management System
SEES	Science, Engineering and Education for Sustainability (unable to verify 12/22)
SEFL	Supervision, Enforcement, and Fair Lending Division

SEFSC	Southeast Fisheries Science Center
SEHSD	Social, Economic, and Housing Statistics Division
SEID	State Economic & Infrastructure Development Program
SEINeD	Screen and Evaluate Invasive and Non-native Data
SEL	Systematic Entomology Laboratory
SEM	Site Exposure Matrices
SEMAP	Section Eight Management Assessment Program
SEMS	Safety and Environmental Management Systems \| Superfund Enterprise Management System
SENSOR	Sentinel Event Notification System for Occupational Risks (unable to verify 5/24)
SENTRI	Secure Electronic Network for Travelers Rapid Inspection
SENTRY	Soft-Target Engineering to Neutralize the Threat Reality
SEO	Subsidies Enforcement Office
SEP	Solar Electric Propulsion \| State Education Practices \| State Energy Program (unable to verify 1/25) \| Sustainability and Environmental Programs
SEPA	Southeastern Power Administration
SEPDPO	Scientific Education and Professional Development Program Office (changed to DSEPD)
SEPT	Survey of Employer-Provided Training
SeqAPASS	Sequence Alignment to Predict Across Species Susceptibility
SER	State Education Reforms
SERC	Smithsonian Environmental Research Center
SERF	Solar Energy Research Facility
SERM	Security Engineering and Risk Management
SERO	Southeast Regional Office
SeroNet	Serological Sciences Network
SERS	Searchable Electronic Rulemaking System \| Surveillance and Emergency Response System
SERV	Project School Emergency Response to Violence
ServCat	Fish and Wildlife Service Catalog
SERVCON	Service Contract Filing System

S/ES	Executive Secretariat
SES	Division of Social and Economic Sciences \| Senior Executive Service
SESSA	Database for the Simulation of Electron Spectra for Surface Analysis
SESTAT	Scientists and Engineers Statistical Data System
SET	Space Environment Testbeds
SETMO	Space Environments Testing Management Office
SETO	Solar Energy Technologies Office
SETS	Statistical Export and Tabulation System (unable to verify 11/16)
SEVIS	Student and Exchange Visitor Information System
SEVP	Student and Exchange Visitor Program
SEWP	Solutions for Enterprise-Wide Procurement
SEWRL	Southeast Watershed Research Laboratory
SF	Office of Sustainable Fisheries \| Summary File, Census
SFA	American Rescue Plan Special Financial Assistance Program \| Space Flight Awareness
SFBPC	Sport Fishing and Boating Partnership Council
SFBWQIF	San Francisco Bay Water Quality Improvement Fund
SFC	Sanitation Facilities Construction Program
SFCB	Security Forces Capacity Building Division (unable to verify 1/25)
SFEC	Statewide Family Engagement Centers program
SFH	Office of Single Family Housing
SFIB	Surveillance and Field Investigation Branch

SFMNP	Senior Farmers' Market Nutrition Program
SFPP	Structural Fire Protection Program
SFS	Scholarship for Service \| Supplemental Fraud Survey \| Sustainable Food Systems, U.S. Compendium of
SFSP	Summer Food Service Program
SFTool	Sustainable Facilities Tool
SFWD	Office of Spent Fuel and Waste Disposition (changed to Office of Spent Fuel and High-Level Waste Disposition)
SFWST	Office of Spent Fuel & Waste Science and Technology (unable to verify 6/24)
SGCN	Species of Greatest Conservation Need
SGCR	Subcommittee on Global Change Research
SGE	Special Government Employee
S/GFS	Office of Global Food Security (changed to E/GFS)
SGHAT	Solar Glare Hazard Analysis Tool
SGIG	Smart Grid Investment Grant
SGLI	Servicemembers' Group Life Insurance
SGM Health SIG	Sexual and Gender Minority Health Scientific Interest Group (unable to verify 1/25)
SGM RCC	Sexual and Gender Minority Research Coordinating Committee (unable to verify 1/25)
SGMRO	Sexual and Gender Minority Research Office (unable to verify 1/25)
SGM RWG	Sexual and Gender Minority Research Working Group (unable to verify 1/25)
S/GP	Office of Global Partnerships (changed to GP)
SGR	Office of State and Grantee Relations \| State of Good Repair Grants Program
SGRD	Survey of State Government Research and Development
SGRG	Supporting Grandparents Raising Grandchildren
S/GWI	Office of Global Women's Issues
SGWIT	Select Global Women in Tech

SHA	Safe Harbor Agreement
ShaRE	Shared Research Equipment User Facility (merged into CNMS; see archive)
SHARE	Seek, Help, Assess, Reach, Evaluate
SHARE Initiative	Safety, Health and Return-to-Employment (unable to verify 8/18)
SHARES	Shared Resources High Frequency (HF) Radio Program
SHARP	Sexual Harassment/Assault Response and Prevention Office \| Strategic Health IT Advanced Research Projects
SHC	Strategic Habitat Conservation \| Sustainable and Healthy Communities
SHED	Survey of Household Economics and Decisionmaking
SHEPheRD	Safety and Healthcare Epidemiology Prevention Research Development
SHI	School Health Index (unable to verify 1/25) \| Sustainable Highways Initiative (unable to verify 10/23)
SHIBs	Safety and Health Information Bulletins
SHIELD	Surveillance of HIV-related service barriers among Individuals with Early or Late HIV Diagnoses
SHIP	Small Rural Hospital Improvement Grant Program \| State Health Insurance Assistance Program
SHIPP	Soil Health and Income Protection Program
SHIRA	Strategic Hazard Identification and Risk Assessment
SHOP	Self-help Homeownership Opportunity Program \| Small Business Health Options Program
SHP	Secretary's Honors Program (unable to verify 11/21) \| Supportive Housing Program
SHPPS	School Health Policies and Practices Study (page archived 11/24)
SHRP2	Strategic Highway Research Program
SHRS	Subtropical Horticulture Research Station
SHSD	Safety & Health Services Division
SHSP	State Homeland Security Program \| Strategic Highway Safety Plan

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 (unable to verify 2/25) \| 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 (unable to verify 2/25)
SIG	SARS-CoV-2 Interagency Group \| 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)
SIJ	Special Immigrant Juveniles
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
SIPRS	Significant Incident Preparedness and Response Staff
SIR	Severe Injury Reports
SIRG	State Indoor Radon Grants
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
SIWEED	Sandia Interactive Wave Energy Education Display
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 (site archived)
SLAMM	Sea Level Affecting Marshes Model
SLATT	State and Local Anti-Terrorism Training Program (unable to verify 2/25)
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
SLOOS	Senior Loan Officer Opinion Survey on Bank Lending Practices
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, Local, and K-12 Solution Center (unable to verify 1/25; previously, 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 \| Strengthening Mobility and Revolutionizing Transportation
SMART ePANTS	Smart Electrically Powered and Networked Textile Systems
SMB	Specimen Management Branch (unable to verify 7/20)
SMBC	Smithsonian Migratory Bird Center
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 \| Smithsonian Marine Station
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 (suspended 2/25)
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
SNAP-R	Simplified Network Application Processing - Redesign (requires login)

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 (unable to verify 11/24) \| Special Needs Plan
SNS	SAFECOM Nationwide Survey \| Spallation Neutron Source \| Strategic National Stockpile
SNUN	Significant New Use Notice
SNUR	Significant New Use Rules
SNWG	Satellite Needs Working Group
SOAR	SSI/SSDI Outreach, Access, and Recovery \| Stop, Observe, Ask, and Respond
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 \| Summary of Deposits \| 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	Measuring Sexual Orientation and Gender Identity Research Group (unable to verify 3/24, likely replaced by SOGISC Interest Group (unable to verify 1/25)
SOGISC	Sexual Orientation, Gender Identity, and Sex Characteristics Subcommittee (unable to verify 1/25)

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
SOLUS	Soil Landscapes of the United States
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
SOOT	Sub-Orbital Order Tool
SOP	Street Outreach Program
SOPA	Schedule of Proposed Actions
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)
SOTO	State of the Ocean
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
SPIN	Small Payload Innovation Network
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 (unable to verify 2/25) \| 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
SQMS Center	Superconducting Quantum Materials and Systems Center
SR	Systems Recognition

SRA	Sequence Read Archive
SRA Tool	Security Risk Assessment Tool
SRAC	Office of Strategy, Resources, Analytics, and Communications
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 (changed to TRSRB)
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)
SRD	Standard Reference Data
SRDR	Systematic Review Data Repository
SREF	Short-Range Ensemble Forecast
SRF	Security Response Force \| State Review Framework
SR-FRB	Small Rural Frozen Rolling Base program
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
SRREJ	Special Representative for Racial Equity and Justice (unable to verify 1/25)
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

SS	Secret Service
SS4A	Safe Streets and Roads for All
SSA	Office of School Support and Accountability \| Secure Systems and Applications Group \| Social Security Administration
SSAB	Social Security Advisory Board
SSAGO	Survey of State Attorneys General Offices
SSAPC	Specialized Services to Abused Parents and Their Children (archived 1/25)
SSAS	Supervision System & Analytical Support
SSBCI	State Small Business Credit Initiative
SSBF	Survey of Small Business Finances
SSBG	Social Services Block Grant Program
SSC	Stennis Space Center
SSCC	Social Science Coordinating Committee
SSCI	Senate Select Committee on Intelligence
SSD	Office of Strategic Stability and Deterrence Affairs \| Satellite Services Division (changed to SPSD) \| Scientific Services Division \| Security Services Division \| Sensor Science Division \| Software and Systems Division \| Solar System Dynamics
SSDCS	Statistical Standards and Data Confidentiality Staff
SSEC	Smithsonian Science Education Center
SSEDSO	Solar System Exploration Data Services Office
SSERVI	Solar System Exploration Research Virtual Institute
SSG	Strategic Sciences Group
SS/HS	Safe Schools/Healthy Students (unable to verify 3/19)
SSI	Sectoral Sanctions Identifications List \| Sensitive Security Information \| Supplemental Security Income
SSIES	DMSP Special Sensor for Ion and Electron Scintillation

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	Shared Socioeconomic Pathways \| Syringe Services Programs
SSPP	System Security and Privacy Plan
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
SSWSF	Snow Survey and Water Supply Forecasting 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
STAQS	Synergistic TEMPO Air Quality Science
STAR	Center for Satellite Applications and Research \| Safety and Tritium Applied Research Facility \| Shellfish Thresholds and Aquaculture Resilience \| Shock Thermodynamics Applied Research Facility \| Support for Trauma-Affected Refugees
STAR LRP	Substance Use Disorder Treatment and Recovery Loan Repayment Program
STARS	Spatial Tools for the Analysis of River Systems (unable to verify 10/24)
START	Survey of Today’s Adolescent Relationships and Transitions (unable to verify 12/24)
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
STBL	Survey of Terms of Business Lending (discontinued 2017)
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 (unable to verify 1/25)
STELA	System for Tracking Export License Applications
STEM	Safety, Training and Emergency Management Division
STEM AVSED	Science, Technology, Engineering, and Math Aviation and Space Education Program
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 \| Science and Technology Innovation Program \| Statewide Transportation Improvement Program
STIP APS	Science, Technology, Innovation, and Partnerships Annual Program Statement (unable to verify 2/25)
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)
StoreFAST	Storage Financial Analysis Scenario Tool
STORET	Storage and Retrieval Data Warehouse (decommissioned 6/18)
STP	Science, Technology and Policy (unable to verify 1/25) \| Solar-Terrestrial Physics \| Solar Terrestrial Probes
STPC	Science and Technology Policy Council (unable to verify 3/18)
STPI	Science and Technology Policy Institute
STRAC	State and Tribal Royalty Audit Committee
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 (unable to verify 2/25)
STRP	Seafood Trade Relief Program (terminated 1/21)
STRS	Space Telecommunications Radio System
STRYVE	Striving to Reduce Youth Violence Everywhere (unable to verify 2/25)
STS	Second Target Station \| State Transportation Statistics
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
SUD	Substance Use & Substance Use Disorders

SuDocs	Superintendent of Documents
SUDORS	State Unintentional Drug Overdose Reporting System
SUIT	CDC/ATSDR SVI Utilization and Implementation Tool
SuitEA	Suitability Executive Agent
SunRISE	Sun Radio Interferometer Space Experiment
SUNS	Software Understanding for National Security
SUNVEx	Southwest Urban NOx and VOC Experiment
Suomi-NPP	Suomi National Polar-orbiting Partnership
SUPER	Strengthening Utilities and Promoting Energy Reform (unable to verify 1/25)
SuperJTI	Superfund Job Training Initiative
SURE	Scaling Up Renewable Energy (unable to verify 1/25) \| Supplemental Revenue Assistance Payments (unable to verify 5/15)
SURFA	Surface Flux Analysis (unable to verify 8/21)
SURFRAD	Surface Radiation Budget Network
SUSB	Statistics of U.S. Businesses
SUTA	Substantially Underserved Trust Area
SUVI	GOES Solar Ultraviolet Imager
SVEP	Severe Violator Enforcement Program
SVI	Social Vulnerability Index, CDC \| Social Vulnerability Index, OMH
SVIP	Silicon Valley Innovation Program
SVOG	Shuttered Venue Operators Grant
SVORI	Serious and Violent Offender Reentry Initiative (unable to verify 1/25)
SVRS	Small Vessel Reporting System (discontinued 9/18; replaced by ROAM)
SVS	Scientific Visualization Studio \| Supplemental Victimization Survey
SWAP	State Wildlife Action Plans
SWAT	Special Weapons and Tactics Team
SWaTH	Surge, Wave, and Tide Hydrodynamics Network
SWBCWG	Southwest Border Communications Working Group
SWBPI	Southwest Border Prosecution Initiative (unable to verify 8/18)
SWC	National Stormwater Calculator
SW CASC	Southwest Climate Adaptation Science Center
SWCC	Southwest Coordination Center

S/WCI	Office of War Crimes Issues (changed to GCJ)
SW CSC	Southwest Climate Science Center (changed to SW CASC)
SWDI	Severe Weather Data Inventory
SWEDD	Southwest Energy Exploration, Development, and Drought (changed to SWEDR)
SWEDR	Southwest Energy Exploration, Development, and Reclamation
SWEPT	Sandia Wave Energy Power Take-off Lab
SWERA	Solar and Wind Energy Resource Assessment
SWFO	Space Weather Follow-On
SWFSC	Southwest Fisheries Science Center
SWFT	Statewide Wildland-Urban Interface Fuels Treatment
SWG	State Wildlife Grants
SWiFT	Scaled Wind Farm Technology Facility
SWIM	System Wide Information Management
SWMM	Storm Water Management Model
SWO	Office of Space Weather Observations
SWORM	Space Weather Operations, Research, and Mitigation Subcommittee
SWOT	Surface Water and Ocean Topography
SWPA	Southwestern Power Administration
SWPC	Space Weather Prediction Center
SWPP	Source Water Protection Program
SWRC	Southwest Watershed Research Center
SWRR	Sustainable Water Resources Roundtable (unable to verify 3/24)
SWS	Safe Water System
SWSI	Surface Water Supply Index (unable to verify 10/22)
SWTCIE	Subminimum Wage to Competitive Integrated Employment
SYCU	Science You Can Use
SyH-DR	Synthetic Healthcare Database for Research
SynLBD	Synthetic Longitudinal Business Database
SynPUFs	Medicare Claims Synthetic Public Use Files
SyRIS	Systemic Risk Identification Support & Specialty Supervision