| A | Amendment | M | Marked Up | |
| E | Engrossment | $ | Fiscal Note | |
| HJ | House Journal | SJ | Senate Journal |
| Date | Day | Committee | |
|---|---|---|---|
| 01/25/2007 | 17 | Senate Transportation | |
| 02/22/2007 | 34 | House Transportation | |
| 02/22/2007 | 34 | House Transportation | |
| 04/04/2007 | 63 | Conference Committee | |
| 04/06/2007 | 65 | Conference Committee |