| Date | Action |
| 03/08/2002 | License Canceled |
| 11/30/2001 | Administrative Update Applied |
| 07/12/2000 | Administrative Update Applied |
| 02/15/2000 | License Renewed |
| 11/06/1999 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 07/13/1999 | License Modified |
| 04/02/1999 | License Modified |
| 06/29/1998 | Internal Correction Applied |
| 02/06/1995 | License Modified |
| 05/30/1990 | License Modified |
| 01/16/1990 | License Renewed |
| 06/27/1988 | License Modified |
| 04/29/1988 | License Modified |
| 02/29/1988 | License Modified |
| 10/26/1987 | License Modified |
| 07/30/1987 | Application Granted |