| CBR: |
Chemical, biological, and radiological |
| CBRNE: |
Chemical, biological, radiological, nuclear, and explosive |
| CCTV: |
Closed-circuit television |
| CIF: |
Common Intermediate Format |
| DCP: |
New York City Department of City Planning |
| DOT: |
New York City Department of Transportation |
| DBT: |
Design basis threat |
| FDNY: |
New York City Fire Department |
| FEMA: |
Federal Emergency Management Agency |
| GSA: |
General Services Administration |
| HEPA: |
High-efficiency particulate air |
| HVAC: |
Heating, ventilation, and air conditioning |
| IBC: |
International Building Code |
| IED: |
Improvised explosive device |
| IFC: |
International Fire Code |
| LIRR: |
Long Island Railroad |
| LMSI: |
Lower Manhattan Security Initiative |
| LPR: |
License plate reader |
| MERV: |
Minimum efficiency reporting value |
| MPIED: |
Man-portable improvised explosive device |
| MTA: |
Metropolitan Transportation Authority |
| NIST: |
National Institute of Standards and Technology |
| NYPD: |
New York City Police Department |
| PATH: |
Port Authority Trans-Hudson |
| UV: |
Ultraviolet |
| VBIED: |
Vehicle-borne improvised explosive device |
| WTC: |
World Trade Center |
| WTC1: |
World Trade Center Building One |
| WTC2: |
World Trade Center Building Two |
| WTC7: |
World Trade Center Building Seven |
Engineering Security
| Protective Design for High Risk Buildings
