| Approved with change | No material or nonsubstantive change to a currently approved collection | 1997-03-20 | |
| Approved without change | Extension without change of a currently approved collection | 1994-03-16 | |
| Approved without change | Revision of a currently approved collection | 1991-04-16 | |
| Approved without change | Revision of a currently approved collection | 1989-03-23 | |
| Approved without change | Reinstatement with change of a previously approved collection | 1988-06-01 | |
| Approved without change | Revision of a currently approved collection | 1983-11-22 | |
| Approved with change | No material or nonsubstantive change to a currently approved collection | 1978-12-31 | |
| Approved with change | No material or nonsubstantive change to a currently approved collection | 1978-12-28 | |
| Approved without change | Extension without change of a currently approved collection | 1978-12-28 | |
| Approved without change | Revision of a currently approved collection | 1974-10-18 |