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| TITLE 37 | PUBLIC SAFETY AND CORRECTIONS |
| PART 1 | TEXAS DEPARTMENT OF PUBLIC SAFETY |
| CHAPTER 4 | COMMERCIAL VEHICLE REGULATIONS AND ENFORCEMENT PROCEDURES |
| SUBCHAPTER B | REGULATIONS GOVERNING TRANSPORTATION SAFETY |
| RULE §4.13 | Authority to Enforce, Training and Certificate Requirements |
| Effective through: 09-23-2019 |
| Effective through: 01-08-2018 |
| Effective through: 10-20-2015 |
| Effective through: 10-07-2013 |
| Effective through: 04-08-2013 |
| Effective through: 06-10-2008 |
| Effective through: 01-01-2008 |
| Effective through: 01-27-2007 |
| Effective through: 09-30-2006 |
| Effective through: 05-29-2006 |
| Effective through: 01-23-2006 |
| Effective through: 09-21-2005 |
| Effective through: 05-21-2005 |
| Effective through: 01-03-2005 |