| Date | Action |
| 03/01/2001 | License Canceled |
| 07/12/2000 | Administrative Update Applied |
| 02/15/2000 | License Renewed |
| 11/06/1999 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 06/01/1998 | Internal Correction Applied |
| 05/29/1998 | Internal Correction Applied |
| 05/11/1998 | License Modified |
| 07/18/1996 | License Modified |
| 01/23/1995 | License Modified |
| 10/03/1991 | License Modified |
| 07/10/1990 | License Modified |
| 02/08/1990 | License Modified |
| 01/16/1990 | License Renewed |
| 04/29/1988 | License Modified |
| 09/30/1986 | License Modified |
| 09/30/1986 | License Modified |
| 02/25/1986 | License Modified |
| 08/12/1985 | License Modified |
| 03/07/1985 | License Modified |
| 02/08/1985 | Application Granted |