| AAA |
American Automobile Association |
| AAMVA |
American Association of Motor Vehicle Administrators |
| AAPRCO |
American Association of Private Railroad Car Owners |
| AAR |
Association of American Railroads |
| AASHTO |
American Association of State Highway and Transportation Officials |
| ACRW |
American Council of Railroad Women |
| ADTSEA |
American Driver and Traffic Safety Education Association |
| AREMA |
American Railwy Engineering of Maintenance-of-Way Association |
| AHVS |
Advocates for Highway and Vehicle Safety |
| APA |
American Pulpwood Association |
| APTA |
American Public Transit Association |
| ARAM |
Association of Railroad Advertising and Marketing |
| ARC |
Association of Railway Communicators |
| ARTBA |
American Road and Transportation Builders Association |
| ASEE |
American Society of Engineering Education |
| ASLRRA |
American Short Line and Regional Railroad Association |
| ATA |
American Trucking Association |
| BLE |
Brotherhood of Locomotive Engineers |
| BRS |
Brotherhood of Railroad Signalman |
| CDC |
Center for Disease Control |
| CVSA |
Commerical Vehicle Safety Alliance |
| DARE |
Drug Abuse Resistance Program |
| DOT |
Department of Transportation |
| FHWA |
Federal Highway Administration |
| FOP |
Fraternal Order of Police |
| FRA |
Federal Railroad Administration |
| FTA |
Federal Transit Administration |
| GFWC |
General Federation of Women's Clubs |
| HSGTA |
High Speed Ground Transportation Association |
| IACP |
International Association of Chiefs of Police |
| IAFC |
International Association of Fire Chiefs |
| IAFF |
International Association of Fire Fighters |
| IIHS |
Insurance Institute for Highway Safety |
| ITE |
Institute of Transportaion Engineers |
| ITS |
Intelligent Transportation Systems |
| LETN |
Law Enforcement Television Network |
| NAGHSR |
National Association of Governors' Highway Safety Representatives |
| NAPT |
National Association of Pupil Transportation |
| NARBW |
National Association of RAilway Business Women |
| NARP |
National Association of Rail Passengers |
| NARUC |
National Association of Regulatory Utility Commissioners |
| NASDPTS |
National Association of State Directors of Pupil Transportation Services |
| NAWHSL |
National Association of Women Highway Safety Leaders |
| NGA |
National Governors' Association |
| NHTSA |
National Highway Traffic Safety Administration |
| NPTC |
National Private Truck Council |
| NRCA |
National Railroad Construction Association |
| NRHS |
National Railroad Historical Society |
| NSA |
National Sheriffs' Association |
| NSC |
National Safety Council |
| NSTA |
National School Transportation Association |
| NTC |
National Trooper Coalition |
| NTSB |
National Transportaion Safety Board |
| OLI |
Operation Lifesaver, Inc. |
| RAC |
Railway Association of Canada |
| REACT |
Radio Emergency Associated Communications Team |
| RPI |
Railway Progress Institute |
| SCORT |
Standing Committee on Rail Transportation |
| STB |
Surface Transportation Board |
| TRB |
Transportation Research Board |
| UTU |
United Transportation Union |
| WTS |
Women's Transportation Seminar |