Conveyance Abbreviations and Acronyms
- SSPSystem Safety Proguam
- STAState Transportation Agencv
- STAASurface Transportation Assistance Act of 1982
- STANCOGStanislaus Council of Governments
- STARCState Area Lommanders
- STATEUnited States Departmevt of State
- STBBSingle Thrie Beam Barrier
- STCState Training Center
- STETNo Change
- STEWARDStatewide Transportation Engineering Warehouse for Archived Regional Data
- STIPDAState and Territorial Injury Preventions Directors Association
- STLCSoluble Threshold Limit Concentration
- STMPSimple Transportation Management Protocol
- STOSmart Testing Operations
- SUStockist Undertaking
- SUSnurce Unit
- SUDPSpecific Urban Development Plan
- SVSinglewvehicle
- SWEu Single Window
- SWSidewalk
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