| Process Step | Date Initiated | Date Completed | Comments |
| Received | 10/27/2000 | 10/27/2000 |
|
| Final Order Issued | 11/16/2000 | 11/16/2000 |
|
| Received | 10/3/2002 | 10/3/2002 |
|
| Final Order Issued | 10/3/2002 | 3/21/2003 |
|
| WMR Request | 2/13/2003 | 2/13/2003 |
|
| Instream Comment Period | 2/18/2003 | 2/18/2003 |
|
| Received | 8/1/2007 | 8/1/2007 |
IL-109 reassigned to IL-891
|
| WMR Request | 8/3/2007 | 11/16/2007 |
|
| Instream Comment Period | 8/7/2007 | 9/19/2007 |
|