The Differences Between Alerts, Plate and Vehicle Alarms and DNTT

Alarms and DNTT states are similar in regards to be able to put a flag so to speak on a vehicle.

Do Not Ticket or Tow has a specific meaning and convention to it as it was used in police force jargon for years.  The acronym is readily recognizable and therefore pretty straight forward. DNTT has the added feature of being able to set a start date and end date for the DNTT privilege to be valid. You can also specify a location in the DNTT.

If a DNTT is in place a red exclamation mark will appear on the handheld read of the plate but no audible alarm will sound.

On the other hand the alarms and alerts on vehicles are not scheduled or associated to a specific location. They are general alarms.
This will trigger an alarm whenever that plate it scanned by the handheld or seen by an LPR camera. These alarms can then be turned into dispatch logs and can be actioned by your Security team.