2008-09 Certified Chemical Test Operators
| DATE ISSUED: | SUPPLEMENT : |
| 06-01-2009 | Twelfth Supplement to July 1, 2008 |
| 05-01-2009 | Eleventh Supplement to July 1, 2008 |
| 03-27-2009 | Tenth Supplement to July 1, 2008 |
| 03-02-2009 | Ninth Supplement to July 1, 2008 |
| 02-06-2009 | Eighth Supplement to July 1, 2008 |
| 01-16-2009 | Seventh Supplement to July 1, 2008 |
| 12-19-2008 | Sixth Supplement to July 1, 2008 |
| 11-19-2008 | Fifth Supplement to July 1, 2008 |
| 10-29-2008 | Fourth Supplement to July 1, 2008 |
| 10-01-2008 | Third Supplement to July 1, 2008 |
| 09-01-20.08 | Second Supplement to July 1, 2008 |
| 08-01-2008 | First Supplement to July 1, 2008 |
| 07-01-2008 |