You’re cruising down I-35 and spot flashing lights on the shoulder ahead. Maybe it’s a state trooper, a tow truck, or a TxDOT crew. Most drivers know they’re supposed to do something. Fewer know exactly what Texas law requires, and plenty of people get at least one part of it wrong.
So yes, in many cases it’s illegal not to move over in Texas. The rule has limits, though, and the details matter for both your driving record and your safety.
What the Texas Move Over or Slow Down Law Says
Lawyers at Steinger, Greene & Feiner, a law firm that handles car accident cases in Texas, say the mix-up usually comes down to two questions. Which vehicles count? And what does “moving over” actually require?
The rule lives in Texas Transportation Code §545.157. When you approach a covered vehicle stopped with its lights on, you have two options:
- Move over. If you’re on a road with two or more lanes going your direction, leave the lane closest to the stopped vehicle.
- Slow down. If you can’t change lanes safely, slow to 20 mph below the posted speed limit. On roads posted at 25 mph or less, slow to 5 mph.
You don’t have to do both, although easing off the gas after changing lanes is still a good habit. The one exception is when a police officer directs you to do something else.
Texas DPS also stresses that you should only move over when you can do it safely and legally. If the lane next to you is full, slowing down is the correct move.
Which Vehicles Does the Law Cover?
This is where most of the confusion starts. People often assume the law covers only police cars and ambulances. In reality, the list is much longer. Under the statute and TxDOT’s guidance, it includes:
- Police, fire, and EMS vehicles using their emergency lights
- Tow trucks using their authorized lights
- TxDOT vehicles and contracted highway maintenance or construction vehicles
- Utility service vehicles, such as electric, gas, or phone crews
- Garbage and recycling trucks stopped next to the road
- Vehicles working for toll road authorities
According to TxDOT, since September 1, 2025, the law also covers vehicles driven by animal control officers and parking enforcement employees.
What About a Regular Car With Its Hazards On?
Here’s the part that surprises a lot of drivers. A regular car pulled over with its hazard lights on is not on the list. So legally, you won’t get a move-over ticket for passing a stranded motorist without changing lanes.
That said, it’s still smart to give them room. Someone changing a tire on the shoulder of US-290 is just as exposed as a tow truck driver. And if you hit them, other traffic laws and general negligence rules still apply. A missing move-over ticket doesn’t mean a driver did nothing wrong.
What Happens If You Don’t Move Over or Slow Down?
Texas takes this law seriously, and the penalties grow quickly. Under §545.157:
- First offense: a fine of $500 to $1,250
- Second offense within five years: a fine of $1,000 to $2,000, plus a possible license suspension of up to six months
- If someone is injured: the offense becomes a Class A misdemeanor, which TxDOT notes can mean jail time and a fine of up to $4,000
- A repeat injury offense: this can be charged as a state jail felony
Enforcement is real, too. In one 12-hour operation on May 14, 2025, Texas DPS and troopers from four neighboring states stopped more than 1,300 drivers for move-over violations. The operation ended with 580 citations and over 1,000 warnings, according to DPS.
Why This Law Exists
Roadside work is dangerous. Traffic flies past at highway speeds just a few feet from people doing their jobs. In July 2026, two Texas first responders were killed in separate incidents within a single weekend while working near traffic. One was a Montgomery County deputy at a crash scene on I-45, and the other was the Mabank fire chief. Officials used those losses to remind drivers to move over or slow down.
Work zones carry a similar risk. A TxDOT district spokesperson reported more than 28,000 work zone crashes across Texas in 2025, with 203 deaths. Most of the people hurt or killed in those crashes were drivers and passengers, not workers. In other words, slowing down protects you as well as the crews outside.
Can a Move-Over Violation Affect an Injury Claim?
It can. Say a driver fails to move over and hits a tow truck, a utility worker, or another car that braked for the stopped vehicle. A citation for breaking a safety law like §545.157 may become an important piece of evidence when someone tries to show the other driver was careless.
Texas also uses a “proportionate responsibility” system. In general, if you’re found more than 50% at fault for a crash, you can’t recover damages. If you’re 50% or less at fault, your compensation may be reduced by your share of the blame. Insurance companies know this rule well. After a roadside crash, they often look for ways to shift fault, for example by claiming the injured person stopped in an unsafe spot or braked too suddenly.
Every crash is different, and a ticket alone doesn’t decide who pays. Still, evidence like the police report, dashcam footage, and witness statements can make a real difference. People hurt in these situations often find it helpful to talk with a Texas car accident attorney about how fault might be divided in their specific case.
Quick Tips for Texas Drivers
- Scan ahead. Flashing lights are your cue to check mirrors and plan early.
- Merge only when it’s clear. A rushed lane change can cause the crash you’re trying to avoid.
- Can’t move over? Slow down. Twenty under the limit is the rule.
- Put the phone down. Distraction often turns a near miss into a crash.
The Bottom Line
So, is it illegal not to move over in Texas? For emergency vehicles, tow trucks, TxDOT crews, utility trucks, garbage trucks, and the other vehicles the law lists, yes. You must change lanes or slow to 20 mph below the limit. Regular cars with hazards on aren’t covered by this law, but giving them room is still the right thing to do.
A few seconds of patience on the highway costs you almost nothing. For the person on the shoulder, it can mean everything.
