History: Below is a listing of the Revisions and Changes made to this UFGS.
| KEY | PREPARING ACTIVITY (PA) | A Army | N Navy | F Air Force | S NASA [ARCHIVED] |
|---|---|---|---|---|---|
| ACTION | N New | R Revision | C Change | D Deletion |
| Release | PA | Date | Action | Change # | Nature of Change or Revision |
|---|---|---|---|---|---|
| Aug-2020 | A | Aug-2020 | N | New unified section replacing/consolidating UFGS 28 31 00.00 10 FIRE DETECTION AND ALARM SYSTEM, DIRECT CURRENT LOOP; UFGS 28 31 49 CARBON MONOXIDE DETECTORS; UFGS 28 31 63.00 20 ANALOG/ADDRESSABLE INTERIOR FIRE ALARM SYSTEM; UFGS 28 31 64.00 10 FIRE DETECTION AND ALARM SYSTEM, ADDRESSABLE; and UFGS 28 31 74.00 20 INTERIOR FIRE DETECTION AND ALARM SYSTEM. |
