F.L. Selbstlader - NCIC firearms make code (NCIC)
Safety Engineering Laboratory - British (IRUK)
Satellite Experiment Laboratory - National Oceanic and Atmospheric Administration (GRD)
Saudi Europe Line (SAUS)
Scatter Extent List (SAUS)
School of Electric Light - British military (DMA)
Science and Engineering Library (SAUS)
Scouts' Esperanto League (EA)
Select - or Selection (AAG)
Select - Lumber (WOHB)
Selectair Ltd. - British - ICAO designator (FAAC)
Selected Equipment List (NVT)
Select Grade - Lumber (WOHB)
Selective (IAA)
Selector (IAA)
Selepet - Language code (ETLW)
Seligman Select Municipal Fund - NYSE symbol (SPSG)
Seligman Select Muni Fund - NYSE symbol
Selkirk College Library - UTLAS symbol
Semi-Effective List - British military (DMA)
Semlyachik - Former USSR - Seismograph station code, US Geological Survey (SEIS)
Sensitized-Erythrocyte-Lysis (PDAA)
SENTEL Corp. - FAA designator (FAAC)
Seoul - South Korea - Airport symbol (OAG)
Signal Engineering Laboratories (AAG)
Single Engine Land - Pilot rating (AIA)
Single-Engine Land (SAUS)
Skolta Esperanto-Ligo - Scouts' Esperanto League (EAIO)
Socialist Electoral League - Norway (PPW)
Software Engineering Laboratory - NASA (MCD)
Solar Environmental Laboratory - National Oceanic and Atmospheric Administration
Southeastern Educational Laboratory
Space Environment Laboratory - Boulder, CO - Department of Commerce - National Oceanic and Atmospheric Administration
Space Experiments Laboratory (SAUS)
Special Edition Luxury - Automobile model designation
Speed Excursion Limit - Automotive emissions
Spontaneously Emitted Light
Standard Electric Lorenz (SAUS)
Standard Electronics Laboratory (SAUS)
Standard Elektrik Lorenz AG - Germany
Standardized Equipment List - Emergency Management (EMA)
Stanford Electronics Laboratory - Stanford University - Research center (MCD)
Star/Earth Landmark Sightings
Structural Engineering Laboratory (SAUS)
Super Einspritz Lang - Fuel-injection, long wheelbase - As in 450 SEL, the model number of a Mercedes-Benz automobile
Support Equipment List - Navy
Surface Emitting LASER
Synthesis Equivalence Language (SAUS)
System Electronics Laboratory (MCD)
System Engineering Laboratories (MCD)
Systems Engineering Laboratories (or Laboratory) (SAUS)
Selection Number - Communications term (DCT)
Select (ELAL)
Selected (MIST)
Selection - Literature
Selkup - MARC language code - Library of Congress (LCCP)
Ducretet-Thomson - Formerly, Ducretet Selmer - Record label - France
Select (WPI)
Selected (DIAR)
Selection (AL)
Seleucid Era (BJA)
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