| Date | Action |
| 12/09/2006 | License Canceled |
| 01/21/2004 | Administrative Update Applied |
| 01/20/2001 | License Renewed |
| 11/13/2000 | Renewal Reminder Letter Sent |
| 06/06/2000 | Administrative Update Applied |
| 06/06/2000 | Administrative Update Applied |
| 08/13/1999 | License Converted |
| 12/15/1998 | Internal Correction Applied |
| 11/27/1995 | License Renewed |
| 02/07/1991 | License Modified |
| 12/29/1990 | License Modified |
| 12/15/1989 | License Modified |
| 02/28/1986 | License Modified |
| 02/10/1986 | License Modified |
| 12/30/1983 | License Modified |
| 05/18/1980 | License Modified |