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 |
|---|---|---|---|---|---|
| May-2024 | A | May-2024 | N | New Unified Section; Superseding UFGS-21 21 01.00 20 Carbon-Dioxide Fire Extinguishing Systems (High Pressure) and UFGS-21 21 02.00 20 Carbon-Dioxide Fire Extinguishing Systems (Low Pressure) |
