| Date | Action |
| 04/26/2002 | License Canceled |
| 02/28/2002 | License Modified |
| 11/30/2001 | Administrative Update Applied |
| 12/04/2000 | License Modified |
| 07/12/2000 | Administrative Update Applied |
| 02/15/2000 | License Renewed |
| 11/06/1999 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 07/14/1998 | Internal Correction Applied |
| 06/25/1996 | Internal Correction Applied |
| 03/11/1996 | License Modified |
| 11/13/1995 | License Modified |
| 10/23/1995 | License Modified |
| 01/16/1990 | License Renewed |
| 02/15/1989 | License Modified |
| 11/30/1988 | License Modified |
| 11/30/1988 | License Modified |
| 11/16/1988 | License Modified |
| 09/13/1988 | License Modified |
| 07/25/1988 | License Modified |
| 07/15/1988 | License Modified |
| 05/27/1988 | License Modified |
| 11/10/1987 | License Modified |
| 10/01/1987 | License Modified |
| 07/30/1987 | License Modified |
| 05/28/1987 | License Modified |
| 03/30/1987 | License Modified |
| 02/20/1987 | License Modified |
| 05/16/1985 | Application Granted |