| Approved without change | Revision of a currently approved collection | 1991-06-21 | |
| Approved with change | No material or nonsubstantive change to a currently approved collection | 1989-10-31 | |
| Approved with change | No material or nonsubstantive change to a currently approved collection | 1989-04-07 | |
| Approved without change | New collection (Request for a new OMB Control Number) | 1988-07-21 |