RouteAllWhat a Pilot Car Actually Does
Last verified September 8, 2026 against the state rules linked in the Sources section.
A pilot car is an escort vehicle that travels with an oversize load, warning traffic and watching the road ahead. It drives in front of the load, behind it, or both. Above a state-set width, commonly 12 feet, one is required by law.
The escort is not a chaperone. The escort is the truck's eyes at the next bridge.
What is the pilot car's actual job?
Warning people, in both directions. The escort tells oncoming traffic that something wide is coming, tells the truck what is ahead, and on tall loads tests every clearance before the load arrives. Utah's rule states the job plainly, and it is the clearest wording of any state.
The escort driver's job is to "control and direct traffic to stop, slow, or proceed in any situations where it is deemed necessary to protect the motoring public." — Utah Admin. Code R909-2-28. Verified September 8, 2026.
Three tasks fill the day, and they never stop at once:
- Warn traffic with signs, amber lights and, where the rule allows it, a stop paddle.
- Scout ahead for construction, a narrow bridge, a low wire or a turn the load cannot make.
- Talk constantly to the truck by radio, because a silent escort is a car with a flag.
Where does the pilot car drive?
Two positions exist. The lead car, also called the front escort, drives ahead of the load. The chase car, also called the rear escort, follows it. Which one you need depends on the state and the road, and some moves need both at once.
Road type flips the answer in several states, and Florida sets a distance limit on both positions. Escorts there operate no more than 300 feet in front of or behind the load unless the road or the permit says otherwise.
Which position a state requires, and at what width, is set out in Pilot car requirements by state.
What is the height pole for?
Testing clearances before the load reaches them. The lead car carries a pole set a few inches above the load's height. If the pole touches a wire, sign or bridge, the escort calls the truck to stop. Florida sets the pole 6 inches above the load and Virginia sets it 3 inches above.
A pole strike is a stop, not a slowdown.
The escort must not wave a truck through after a pole strike. Stop the move, measure, then decide.
"For over height loads, the lead vehicle must have a height indicator, (i.e. height pole) made of non-conducive and non-destructive material. The height pole must be 6 inches above the height of the load." — Florida DOT Blanket Permit Movement Conditions, revised May 30, 2025. Verified September 8, 2026.
A metal pole across a live wire is the exact failure that rule exists to prevent.
What does a pilot car carry?
More than a sign. Utah publishes one of the most detailed equipment lists of any state, and it is a good baseline for what an escort should have on board. The vehicle itself is limited too, which surprises drivers who expect a pickup with a trailer.
The equipment falls into three groups, and a shortfall in any of them can stop the move at a scale.
- Vehicle limits — a passenger vehicle or two-axle truck, 95-inch minimum wheelbase, 12,000 pounds maximum in Utah.
- Visibility gear — an OVERSIZE LOAD sign at least 5 feet wide, plus AAMVA-approved amber lights or a beacon.
- Safety gear — stop and slow paddles, triangles or cones, flares, a flashlight, a vest, a first aid kit and a fire extinguisher.
New York adds an insignia on both doors, a stop paddle at least 18 inches, and a measuring device on any front escort running an over-height load. Sign and lamp rules differ enough that an escort legal in one state may not be legal next door.
Why does the radio matter so much?
Because the escort sees the problem and the truck has to react to it. A pilot car that cannot reach the driver has warned nobody. Utah writes a minimum range into its rule, and most states in our state-by-state guide require two-way contact in some form.
The table gives three states' radio wording side by side.
| State | Requirement | Source |
|---|---|---|
| Utah | Two-way radio reaching a minimum of one-half mile | Utah Admin. Code R909-2-28 |
| New York | Two-way radio between the certified escort and the escorted vehicle | 17 NYCRR 154-1.12 |
| Pennsylvania | Visual and two-way radio contact maintained during the move | 67 Pa. Code 179.10 |
"Communication over the CB is crucial to our role."
Whitney S. Johnson, height pole escort
Agree the channel before the first mile, not at the first problem.
How does the escort get the route?
Send the permit. The escort needs the roads, the dimensions and the curfews before the first mile, and a dropped map pin gives none of those. A pin names a destination, and the permit names the highways the state actually surveyed for your load.
"Send me the permit so I can look over the route."
Whitney S. Johnson, height pole escort
A shared RouteAll route opens for the escort with no account and no charge. The escort sees the roads written on the permit rather than a car route between the same two points. The reasoning behind that is in Pilot car route sharing, free for the escort.
What happens when the truck leaves those roads is covered in What happens if you leave your permitted route.
Before you roll
Give your escort the permit, not a pin, and agree the radio channel before you move. The escort is reading the road you have not reached yet, and that only works if you can hear each other. RouteAll does not issue permits or guarantee compliance. New drivers should also read Your first oversize load: what to expect.
Common questions
Does the pilot car have authority to stop traffic?
In Utah, yes, within the rule. R909-2-28 makes the escort driver's job to control and direct traffic to stop, slow or proceed where needed to protect the public. Authority varies by state, so read the rule for the state you are entering rather than assuming.
What equipment does a pilot car carry?
Utah requires an OVERSIZE LOAD sign at least 5 feet wide, amber warning lights, and a two-way radio reaching half a mile. It also requires stop and slow paddles, reflective triangles or cones, flares, a flashlight, a safety vest, a first aid kit and a fire extinguisher.
Who pays for the pilot car?
The carrier or the shipper normally pays, and the escort invoices for the job. Escorts are usually separate businesses rather than employees of the trucking company. Agree the rate and who covers deadhead miles before the move, not at the delivery.
How does the escort get my route?
Send the permit, not a map pin. The permit names the roads and the travel conditions the escort will drive into. A shared RouteAll route opens for the escort with no account and no charge, showing the roads written on the permit rather than a car route.
Further reading
Sources
- Utah, Utah Admin. Code R909-2-28, escort duties, vehicle limits, signs, lights, radio and safety equipment. Read September 8, 2026.
- New York, 17 NYCRR 154-1.12, certified escort equipment and insignia. Read September 8, 2026.
- Pennsylvania, 67 Pa. Code § 179.10, escort contact and pole car distance. Read September 8, 2026.
- Virginia, 24VAC20-82-130, escort and height pole requirements. Read September 8, 2026.
- Georgia, Ga. Comp. R. & Regs. R. 672-2-.06, escort thresholds. Read September 8, 2026.
- United States, 23 CFR 658.15, federal width limit of 102 inches. Read September 8, 2026.
RouteAll reads the permit you provide. It does not issue permits or guarantee compliance. The driver remains responsible for the load. Rules change; verify against the permit and the issuing state before every move.