| Date | Action |
| 08/22/2003 | License Canceled |
| 07/12/2001 | Administrative Update Applied |
| 12/15/2000 | Administrative Update Applied |
| 05/09/2000 | Administrative Update Applied |
| 08/13/1999 | License Converted |
| 06/30/1998 | License Renewed |
| 12/04/1995 | Internal Correction Applied |
| 12/04/1995 | Internal Correction Applied |
| 08/24/1993 | License Modified |
| 11/15/1990 | License Modified |
| 10/06/1990 | License Modified |
| 12/13/1985 | License Modified |
| 03/06/1985 | License Modified |
| 02/04/1983 | License Modified |
| 12/15/1980 | License Modified |
| 05/05/1980 | License Modified |
| 04/13/1978 | License Issued |