| Date | Action |
| 01/15/2003 | License Canceled |
| 02/22/2002 | License Assigned (Full Assignment) |
| 09/26/2000 | License Renewed |
| 05/07/2000 | Renewal Reminder Letter Sent |
| 12/17/1999 | Administrative Update Applied |
| 12/17/1999 | Administrative Update Applied |
| 12/07/1999 | Administrative Update Applied |
| 08/13/1999 | License Converted |
| 05/10/1999 | Internal Correction Applied |
| 02/12/1999 | License Modified |
| 04/06/1998 | Administrative Update Applied |
| 07/26/1997 | Internal Correction Applied |
| 07/26/1997 | License Modified |
| 12/16/1993 | License Modified |
| 05/13/1993 | License Modified |
| 05/28/1992 | License Modified |
| 07/08/1988 | License Modified |
| 01/07/1988 | License Modified |
| 05/28/1987 | Application Granted |