| Date | Action |
| 03/16/2004 | License Canceled |
| 01/24/2003 | License Modified |
| 05/01/2001 | License Renewed |
| 04/09/2001 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 02/05/1998 | Internal Correction Applied |
| 07/08/1996 | Internal Correction Applied |
| 07/05/1996 | License Modified |
| 06/06/1995 | Internal Correction Applied |
| 09/15/1992 | License Modified |
| 04/18/1991 | License Modified |
| 10/18/1990 | License Modified |
| 09/14/1990 | License Modified |
| 09/06/1990 | License Modified |
| 01/10/1986 | License Modified |
| 11/12/1985 | License Modified |
| 10/11/1985 | License Modified |
| 04/03/1984 | License Modified |
| 01/08/1982 | License Issued |