| Date | Action |
| 11/11/2011 | License Canceled |
| 08/22/2011 | Renewal Reminder Letter Sent |
| 02/01/2002 | Internal Correction Applied |
| 02/01/2002 | Internal Correction Applied |
| 02/01/2002 | License Renewed |
| 08/20/2001 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 09/09/1998 | Internal Correction Applied |
| 08/21/1996 | License Renewed |
| 08/24/1995 | License Modified |
| 11/12/1991 | License Modified |
| 08/09/1990 | License Modified |
| 07/03/1990 | License Modified |
| 06/27/1990 | License Modified |
| 08/16/1985 | License Modified |
| 08/05/1985 | License Modified |
| 06/01/1983 | License Modified |
| 05/04/1981 | License Modified |
| 01/30/1980 | License Issued |