| Date | Action |
| 05/23/2018 | License Renewed |
| 04/30/2018 | Renewal Reminder Letter Sent |
| 05/10/2008 | License Renewed |
| 05/05/2008 | Renewal Reminder Letter Sent |
| 12/11/2006 | License Modified |
| 08/14/2002 | License Modified |
| 08/13/1999 | License Converted |
| 01/25/1999 | Internal Correction Applied |
| 10/09/1998 | Internal Correction Applied |
| 04/20/1998 | License Renewed |
| 07/09/1997 | Internal Correction Applied |
| 07/27/1993 | License Modified |
| 12/08/1988 | License Modified |
| 12/02/1988 | License Modified |
| 01/20/1984 | License Modified |
| 01/04/1984 | License Modified |
| 03/10/1981 | License Modified |
| 01/31/1978 | License Modified |