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-2025 | A | Aug-2025 | R | Complete review and update. |
|
| Nov-2017 | A | Nov-2017 | N | Superseding UFGS 04 01 20.70 UNIT MASONRY CLEANING AND RESTORATION. Reviewed for currency, revised title. |
