| ADA |
Americans with Disabilities Act |
| ANSI |
American National Standards Institute |
| APTA |
American Public Transportation Association |
| AORA |
Areas of Response Assistance |
| ASME |
American Society of Mechanical Engineers |
| ASTM |
American Society for Testing and Materials |
| ASTM |
American Society for Testing and Materials International |
| AVL |
Automatic Vehicle Locator |
| BRT |
Bus Rapid Transit |
| CapWIN |
Capital Wireless Integrated Network |
| CBNR |
Chemical, Biological, Nuclear, Radiological |
| CCTV |
Closed-Circuit Television |
| CDC |
Centers for Disease Control |
| CDPD |
Cellular Digital Packet Data |
| CFR |
Code of Federal Regulations |
| CNG |
Compressed Natural Gas |
| ConOps |
Concept of Operations |
| COTS |
Commercial Off The Shelf |
| CPTED |
Crime Prevention Through Environmental Design |
| DCS |
Distributed Control Systems |
| DHHS |
Department of Health and Human Services |
| DOD |
Department of Defense |
| DOS |
Department of State |
| EMI |
Electro-Magnetic Interference |
| FAH |
Foreign Affairs Handbook |
| FCRA |
Federal Fair Credit Reporting Act |
| FTA |
Federal Transit Administration |
| GETS |
Government Emergency Telecommunications Service |
| GIS |
Geographic Information Systems |
| GPA |
Grade Point Average |
| GPS |
Global Positioning System |
| GSA |
General Services Administration |
| HVAC |
Heating, Ventilation, and Air Conditioning |
| ID |
Identification |
| IDS |
Intrusion Detection System |
| IEC |
International Electrotechnical Commission |
| IEEE |
Institute of Electrical and Electronics Engineers |
| IESNA |
Illuminating Engineering Society of North America |
| IETF |
Internet Engineering Task Force |
| IIMS |
Integrated Incident Management System |
| INS |
Immigration and Naturalization Service |
| ISP |
Internet Service Provider |
| ISO |
International Organization for Standardization |
| ITE |
Institute of Transportation Engineers |
| ITS |
Intelligent Transportation Systems |
| MDT |
Mobile Data Terminals |
| MVR |
Motor Vehicle Record |
| NEMA |
National Electrical Manufacturers Association |
| NFPA |
National Fire Protection Agency |
| NIOSH |
National Institute of Occupational Safety and Health |
| NRC |
National Research Council |
| NTCIP |
National Transportation Communications for ITS Protocol |
| NTI |
National Transit Institute |
| NYCTA |
New York City Transit Authority |
| NYCT |
New York City Transit |
| OCC |
Operations Control Center |
| OEM |
Office of Emergency Management (New York Mayor's Office) |
| OTS |
Off-the-Shelf |
| PA |
Public Address |
| PD |
Probability of Detection |
| PDA |
Personal Digital Assistant |
| PIDS |
Perimeter Intrusion Detection System |
| PIN |
Personnel Identification Number |
| PROTECT |
Program for Response Options and Technology Enhancements for Chemical/Biological Terrorism |
| PSI |
Pounds per Square Inch |
| RF |
Radio Frequency |
| SAE |
Society of Automotive Engineers |
| SCADA |
Supervisory Control and Data Acquisition |
| SDO |
Standards Development Organization |
| TCIP |
Transit Communications Interface Protocols |
| TCRP |
Transit Cooperative Research Program |
| TNT |
Trinitrotoluene |
| TRB |
Transportation Research Board |
| TSA |
Transportation Security Administration |
| TSWG |
Technical Support Working Group |
| TV |
Television |
| TVA |
Threat and Vulnerability Assessment |
| TWIC |
Transportation Worker Identification Credential |
| UHF |
Ultra High Frequency |
| US |
United States |
| VHF |
Very High Frequency |
| VMS |
Variable Message Sign |
| WiFi |
Wireless Fidelity |
| WPS |
Wireless Priority System |
| WMD |
Weapons of Mass Destruction |
