2012-13 Certified Chemical Test Operators
| DATE ISSUED: | SUPPLEMENT : |
| 05-01-2013 | Tenth Supplement to July 1, 2012 |
| 04-01-2013 | Ninth Supplement to July 1, 2012 |
| 03-01-2013 | Eight supplement to July 1, 2012 |
| 02-04-2013 | Seventh Supplement to July 1, 2012 |
| 01-02-2013 | Sixth Supplement to July 1, 2012 |
| 12-03-2012 | Fifth Supplement to July 1, 2012 |
| 11-05-2012 | Fourth Supplement to July 1, 2012 |
| 10-03-2012 | Third Supplement to July 1, 2012 |
| 09-04-2012 | Second Supplement to July 1, 2012 |
| 08-03-2012 | Corrections to July 1, 2012 |
| 08-01-2012 | First Supplement to July 1, 2012 |
| 07-01-2012 |