Idaho Pilot Car Requirements
When Idaho requires a pilot car, how many, and when a height pole car is needed. Set by Idaho Transportation Department (Commercial Vehicle Services / Permits4Idaho).
ID, reviewed October 2026
The short answer for Idaho
Loads wider than 12 ft 1 in need a pilot car in Idaho, and wider than 14 ft 1 in need two. A height-pole escort is required at 16 ft 0 in tall.
Idaho asks for a first pilot car at 12 ft 1 in wide. 27 of the 45 states that publish a width wait until a wider load, and 17 start earlier.
On black/white-coded routes and interstates, escort is shown on ITD's pilot map as one front at 12'1" to 14' wide and front plus rear at 14'1" to 18'; length over 120 ft needs a front escort; height pole front escort above 16 ft.
Check your load for Idaho
Oversize permit required in Idaho
- Width 10 ft 0 in exceeds the 8 ft 6 in legal limit.
No width-based pilot car at 10 ft 0 in wide.
Idaho escort thresholds
| First pilot car | 12 ft 1 in wide and over |
|---|---|
| Second pilot car | 14 ft 1 in wide and over |
| Height-pole escort | 16 ft 0 in tall and over |
| Length escort | 120 ft 0 in long and over |
Pilot cars by load width in Idaho
Escorts to plan for at each width, from the thresholds above. The permit sets front and rear positions.
| Load width | Pilot cars |
|---|---|
| 8 ft 6 in (legal width) | None required for width |
| 9 ft 0 in | None required for width |
| 10 ft 0 in | None required for width |
| 11 ft 0 in | None required for width |
| 12 ft 0 in | None required for width |
| 13 ft 0 in | 1 pilot car |
| 14 ft 0 in | 1 pilot car |
| 15 ft 0 in | 2 pilot cars |
| 16 ft 0 in | 2 pilot cars |
Height pole by load height in Idaho
| Load height | Permit needed | Height pole car |
|---|---|---|
| 13 ft 6 in | No | Not required |
| 14 ft 0 in | No | Not required |
| 14 ft 6 in | Yes | Not required |
| 15 ft 0 in | Yes | Not required |
| 15 ft 6 in | Yes | Not required |
| 16 ft 0 in | Yes | Required |
Before you book an escort
- Read the escort conditions on your Idaho permit. They control over any summary, including this one.
- Ask about certification and insurance rules for escort drivers at Idaho Transportation Department (Commercial Vehicle Services / Permits4Idaho).
- See the full Idaho oversize guide for legal dimensions, travel hours and holiday limits. New to the terms? The glossary covers pilot car and height pole.
Crossing a border? Compare Idaho with a neighbor: Montana, Washington.
Sources
- https://permits4idaho.com/PDFGate.aspx?LoginNoticeID=68
- https://adminrules.idaho.gov/rules/current/39/390301.pdf
- https://legislature.idaho.gov/statutesrules/idstat/Title49/T49CH10/SECT49-1010
- https://legislature.idaho.gov/statutesrules/idstat/Title49/T49CH10/SECT49-1001
- https://legislature.idaho.gov/statutesrules/idstat/Title49/T49CH4/SECT49-432
- https://itd.idaho.gov/dmv/commercial-vehicle-services/
- https://itd.idaho.gov/wp-content/uploads/2025/04/Temporary_Trip_Permit.pdf
Idaho Pilot Car FAQs
- How wide can a load be in Idaho before it needs a pilot car?
- Idaho requires the first pilot car at 12 ft 1 in wide and a second at 14 ft 1 in wide. Loads up to the 8 ft 6 in legal width travel without a width escort.
- When does Idaho require a height pole car?
- A height-pole escort is required at 16 ft 0 in tall and over in Idaho. The pole is set just above the load so the escort driver finds low wires and structures first.
- Is a pilot car required for long loads in Idaho?
- Idaho lists a length trigger of 120 ft 0 in for an escort. Check the permit for how many escorts a long load needs.
- Do I need Idaho pilot car certification?
- Escort driver certification and reciprocity rules differ by state and change often. The permit conditions from Idaho Transportation Department (Commercial Vehicle Services / Permits4Idaho) state who may escort a load, so confirm certification and insurance requirements there before you book an escort.
- Where do the pilot car numbers on this page come from?
- They are taken from Idaho's published permit rules and statutes, reviewed in October 2026, with the source links listed on this page. Where a figure could not be confirmed it is marked as not confirmed rather than estimated.
Summary of first pilot car at 12 ft 1 in wide, two at 14 ft 1 in, height pole at 16 ft 0 in, reviewed October 2026. Regulations change and this is not legal advice; the conditions printed on your permit control.