National Public Safety Telecommunications Council
People and Vehicles : Firefighter, Policeman, Police cruiser, Ambulance
Vehicles : Fire truck, Ambulance, Police boat
People : Policemen
Towers : Towers on a ridge
Computers : monitor array
9-1-1
9-1-1 is the emergency telephone number for the North American Numbering Plan (NANP), one of eight N11 codes.  This number is intended for use in emergency circumstances only, and to use it for any other purpose (including non-emergency situations and prank calls) can be a crime.
Indoor Location Accuracy
Crisis Text Service
History
NG 911 Work Stream Analysis
911.gov
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DHS
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NENA
NG 911 Coalition of the Willing
NG 911 Now Coalition
USDOT
9-1-1 Firefighter Statue
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