Pilot car requirements by state

Every state sets its own width, height, length and weight thresholds for when an oversize load needs a pilot car, a height pole, or a police escort. Pick a state to see what triggers an escort — and the official permit office to confirm with.

Operator certification & state reciprocityWhich states require P/EVO certification, which accept each other’s cards, and the catches — a planning reference.

Informational only. Thresholds are compiled from published state DOT references and change over time — always verify with the state permit office before moving a load.

Frequently asked questions

When does an oversize load need a pilot car?

It depends on the state and the load's dimensions. Each state sets its own width, height, length, and weight thresholds for when an oversize load requires one or more escort vehicles, a height pole, or a police escort. Pick your state above to see the exact thresholds, then confirm with the state permit office.

What's the difference between a lead car and a chase car?

A lead (front) car runs ahead of the load to warn oncoming traffic and scout for hazards, low clearances, and tight turns. A chase (rear) car follows behind to protect the load in traffic. Some moves require one, some require both — it depends on the state and the load size.

What is a height pole?

A height pole is a flexible pole mounted on a lead car, set slightly higher than the load, to physically check overhead clearances (bridges, wires, signs) before the load reaches them. Tall loads typically require a height-pole car.

Do pilot car requirements change between states on the same trip?

Yes. Requirements are set per state, so a single oversize move can pick up or drop escort requirements as it crosses state lines. Check each state on the route and permit accordingly.