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 |
|---|---|---|---|---|---|
| Nov-2020 | A | Nov-2020 | R | Complete review and update. | |
| Nov-2018 | A | Feb-2009 | C | 1 | Updated reference in response to CCRs 6683 and 6685. |
| Nov-2015 | A | Feb-2009 | R | Superseding UFGS 13 49 19 with no title change; Nontechnical number revision; Did not change Section date. |
