2011-12 Certified Chemical Test Operators
| DATE ISSUED: | SUPPLEMENT : |
| 06-26-2012 | Twelfth Supplement to July 1, 2011 |
| 06-05-2012 | Eleventh Supplement to July 1, 2011 |
| 05-01-2012 | Tenth Supplement to July 1, 2011 |
| 04-05-2012 | Ninth Supplement to July 1, 2011 |
| 03-02-2012 | Eighth Supplement to July 1, 2011 |
| 02-03-2012 | Seventh Supplement to July 1, 2011 |
| 01-04-2012 | Sixth Supplement to July 1, 2011 |
| 12-05-2011 | Fifth Supplement to July 1, 2011 |
| 11-03-2011 Revised | Fourth Supplement to July 1, 2011 |
| 11-03-2011 | Fourth Supplement to July 1, 2011 |
| 10-03-2011 | Third Supplement to July 1, 2011 |
| 09-01-2011 | Second Supplement to July 1, 2011 |
| 08-01-2011 | First Supplement to July 1, 2011 |
| 07-01-2011 |