NFIRS 5.0 Element: ‘Alarm Date Time’

by | Mar 7, 2023

Définition : The actual month, day, year, and time of day (hour, minute, and (optional in on-line entry) seconds) when the alarm was received by the fire department. This is not an elapsed time.
Purpose : Alarm time is important for three reasons: (1) as a legal requirement for recording the precise time notification was made of the incident, (2) as information for determining the frequency of particular types of incidents by time period, and (3) as the starting time to determine the length of time taken to arrive at an incident and the total amount of time spent on the incident scene.
Entry : Enter the month, day, year (mm/dd/yyyy), and time to the nearest minute when the original alarm was received by the fire department.

Element Specification

 Specification   Value 
Requirement Mandatory
Expected Length 14
Element Type Numeric – Integer numbers (no decimal points). If the user has not provided information, an empty field should be transmitted. All integer values are assumed to be positive. Any fields which allow a negative integer value have been denoted with ‘+ or –’ in the comment field. Negative numbers should be transmitted with the minus sign preceding the digits. – – Date and Time

Relational Edit Rules for ‘Alarm Date Time’

NFIRS defines relational edit rules to ensure data consistency and accuracy in its database. These are the rules for ‘Alarm Date Time’.

Rule Group  Overview 
Relational Edit Rule 22 Arrival after Alarmed.
Relational Edit Rule 23 Controlled after Alarmed.
Relational Edit Rule 24 Alarmed before Cleared.

Topic: NFIRS