The Texas Move Over/Slow Down law requires all Texas drivers to move one lane over, if possible when approaching an emergency vehicle or service utility vehicle parked on the shoulder with warning lights in operation. If moving over isn’t practical or possible, drivers must slow down to at least 20 miles per hour below the posted speed limit. This law applies to the following vehicles:
- Police vehicles
- Ambulances
- Fire Engines
- TXDOT vehicles or other highway construction or maintenance vehicles
- Tow trucks
- Power utility vehicles
- Garbage trucks