| Date | Action |
| 04/09/2009 | License Canceled |
| 07/29/2004 | License Modified |
| 01/24/2003 | License Modified |
| 04/12/2000 | License Renewed |
| 03/25/2000 | Renewal Reminder Letter Sent |
| 08/13/1999 | License Converted |
| 02/02/1999 | Internal Correction Applied |
| 08/04/1998 | Application Granted |
| 02/05/1998 | Internal Correction Applied |
| 08/01/1997 | Internal Correction Applied |
| 11/29/1996 | License Modified |
| 11/22/1995 | License Modified |
| 06/02/1995 | Internal Correction Applied |
| 06/01/1995 | License Modified |
| 09/15/1992 | License Modified |
| 08/25/1992 | License Modified |
| 04/16/1992 | License Modified |
| 03/09/1992 | License Modified |
| 05/01/1987 | License Modified |
| 01/10/1986 | License Modified |
| 04/03/1984 | License Modified |
| 06/04/1982 | License Issued |