1
Date:
11-01-2022
Division:
Division 31 - Earthwork
Page(s):
58
Criteria Change Request:
Federal Facility Criteria:
UFGS 31 71 19 Tunnel and Shaft Excavation in Rock - Mechanical
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 |
|---|---|---|---|---|---|
| ACTION | N New | R Revision | C Change | D Deletion |
| Release | PA | Date | Action | Change # | Nature of Change or Revision |
|---|---|---|---|---|---|
| Nov-2022 | A | Nov-2022 | N |
New UFGS section. |
WBDG Participating Agencies
