| AASHTO |
American Association of State Highway Transportation Officials |
| ACEC |
American Council of Engineering Companies |
| ARA |
Alabama Railway Association |
| AREMA |
The American Railway Engineering and Maintenance-of-Way Association |
| ASCE |
American Society of Civil Engineers |
| ASLRRA |
American Short Line Regional Railroad Association |
| CARTA |
Lookout Mountain Incline Railroad |
| CCRA TIGER (GRANT) |
Nashville & Western Railroad Improvement Project (TIGER III) |
| FRA |
Federal Railroad Administration |
| FTA |
Federal Transit Administration |
| MCS |
Music City Star |
| OLI |
Operation Lifesaver |
| TDEC |
Tennessee Department of Environment and Conservation |
| TDOT |
Tennessee Department of Transportation |
| TNOL |
Tennessee Operation Lifesaver |
| USGBC |
United States Green Building Council |
.JPG)
