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AASHTO - American Association of State Highway and Transportation Officials
AIA - American Institute of Architects - Resources of AEC Design Professionals
AREMA - American Railway Engineering and Maintenance-of-Way Association
FDOT-TTC - Florida Dept. of Transportation Temporary Traffic Control (School)
NACTO - National Association of City Transportation Officials
NLTAPA - National Local Technical Assistance Program Association
NPDES - National Pollutant Discharge Elimination System - National Stormwater Center
UTK-CTR - University of Tennessee Center for Transportation Research
Additional Lists of Transportation Organizations