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 |
|---|---|---|---|---|---|
| Feb-2020 | N | Feb-2020 | R | Complete review and update. | |
| Feb-2013 | N | Feb-2011 | C | 2 | Modified subpart 2.2.3.2 |
| Nov-2012 | N | Feb-2011 | C | 1 | Removed note before Part 1; modified note in subpart 2.2.1 |
| Feb-2011 | N | Feb-2011 | N | Superseding UFGS 44 42 23 Circular Clarifier Equipment without revision to comply with MF 2010 |
