The National Academy’s Special Release Announcement - Protocol 34: Automatic Crash Notification (ACN)

DATE:        April 19, 2007

RE:             ProQA Protocol 34: Automatic Crash Notification (ACN)

ProQA Protocol 34: Automatic Crash Notification

Vehicle Telematics and Automatic Crash Notification technologies have become a vital, life-saving means of notifying public safety agencies about traffic accident emergencies. In recognition of this fact, the National Academies of Emergency Dispatch have teamed up with the leading Vehicle Telematics Service Providers, ATX® and OnStar®, to create an expert MPDS Automatic Crash Notification Protocol.

Vehicle Telematics Service Providers have verification processes in place to minimize the number of false alarms reported to PSAPs. Telematics Service Provider (TSP) operators attempt to make voice contact inside the vehicle once they receive an Automatic Crash Notification. They use sophisticated mapping software and a proprietary database of PSAP boundaries to determine the appropriate public safety agency to contact if necessary.

ACN systems have several advantages over traditional cell phones. Cell phones are often difficult to locate after a crash and they don’t automatically transmit electronic data concerning the incident. ACN systems generally have a wider range making them more likely to find a signal in a remote area and can notify TSPs about a crash even when the occupants are incapacitated.

Please note that many areas outside the U.S., Canada, and Europe may not have vehicles with this equipment or have Telematics Service Provider centers to process these calls.

It is not required that Protocol 34 be used by all ProQA users. Until further notice, this will be a local agency/communication center choice. See the local enabling process for Protocol 34 below.

Version Updating Requirements

Protocol 34: Automatic Crash Notification (ACN) is now available only in Standard and Omega North American English ProQA Version This will not be available in cardsets. MPDS cardset users should use Protocol 29: Traffic/Transportation Accidents to process these calls.

Protocol 34 must be enabled through the ProQA Configuration Utility in the Restricted tab page, Medical Control sub-tab area (see below):

Response Implications & Response Configuration/CAD Issues

Since this protocol contains new determinant codes for establishing local responses, you must enter your desired responses in ProQA’s Response Configuration Utility.  Your CAD codes can also be setup there within a separate column.  Please coordinate with your CAD company as needed and/or Priority Dispatch Corp.’s Software & Technical Support Department at:   801-363-9127 or

EMD Training for Protocol 34

A new Special Procedures Briefing CD-rom will be available on May 15th for licensed agencies at no charge from Priority Dispatch Corp.’s On-Line Store at:  

This informative protocol preparation lesson is approximately 30 minutes in length and provides ½-hour of CDE credit toward EMD recertification. 

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