| Date | Action |
| 06/21/2001 | License Canceled |
| 03/07/2001 | Administrative Update Applied |
| 02/13/2001 | License Renewed |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 08/14/1999 | License Converted |
| 02/11/1999 | License Transferred |
| 04/30/1998 | License Modified |
| 05/23/1997 | Internal Correction Applied |
| 05/21/1997 | Internal Correction Applied |
| 02/20/1992 | License Modified |
| 09/18/1991 | License Modified |
| 03/28/1991 | License Modified |
| 08/16/1990 | License Modified |
| 01/12/1990 | License Modified |
| 08/25/1988 | License Modified |
| 06/23/1988 | License Modified |
| 10/23/1986 | License Modified |
| 01/30/1986 | Application Granted |