Illinois (IL) Pilot Car & Escort Vehicle Requirements

Escort requirements, travel restrictions, and signage rules for oversize/overweight loads in Illinois.

PCP - Pilot Cars & Permits provides professional pilot car escort services throughout Illinois. Whether you need a lead vehicle, chase car, or high pole escort, our certified pilots are available 24/7 across Illinois and all connecting states. We handle the coordination so your oversize load moves safely and on time.

Legal Dimensions — Illinois

Max Width
8'6"
Max Height
13'6"
Max Length
53'0"
Gross Weight
80,000 lbs
Front Overhang
3'0"
Rear Overhang
4'0"

Interstate Escort Requirements

Width

Min WidthMax Width EscortsPositionNotes
8'7" 14'6" 0 Permit required, no escort
14'7" 16'0" 1 Rear
16'1" 18'0" 3 Front + Rear
18'1" 20'0" 3 Police Front + Rear State Police required

Height

Min HeightMax Height EscortsPositionNotes
13'7" 14'6" 0 Permit required
14'7" 16'0" 1 Front High pole required. Interstate practical max height is 15'9". Route survey required over 15'6".
Height pole required
16'1" 18'0" 2 Front + Rear Route survey + State Police may be required
Height pole required
18'1" 20'0" 3 Police Front + Rear 3 escorts required; State Police required
Height pole required

Length

Min LengthMax Length EscortsPositionNotes
53'1" 110'0" 0 Permit required
110'1" 145'0" 1 Rear
145'1" 200'0" 3 Front + Rear
200'1" 300'0" 3 Police Front + Rear State Police required

Weight

Min WeightMax Weight EscortsPositionNotes
150,001 lbs 999,999 lbs 2 Front + Rear Superload
Route survey required

Non-Interstate / State Road Escort Requirements

Width

Min WidthMax Width EscortsPositionNotes
8'7" 14'6" 0 Permit required
14'7" 16'0" 1 Rear
16'1" 18'0" 3 Front + Rear
18'1" 20'0" 3 Police Front + Rear State Police required

Height

Min HeightMax Height EscortsPositionNotes
13'7" 14'6" 0 Permit required
14'7" 16'0" 1 Front High pole required
Height pole required
16'1" 18'0" 2 Front + Rear Route survey + State Police may be required
Height pole required
18'1" 20'0" 3 Police Front + Rear 3 escorts required for all moves exceeding 18' high (IDOT)
Height pole required

Length

Min LengthMax Length EscortsPositionNotes
53'1" 110'0" 0 Permit required
110'1" 145'0" 1 Rear
145'1" 200'0" 3 Front + Rear
200'1" 300'0" 3 Police Front + Rear State Police required

Weight

Min WeightMax Weight EscortsPositionNotes
150,001 lbs 999,999 lbs 2 Front + Rear Superload
Route survey required

Travel Restrictions

Standard Hours
Sunrise to sunset
Night Travel
Not permitted for oversize loads
Weekend Travel
Standard loads (14'6" wide or less, 15' H or less, 145' L or less, 120,000 lbs or less): 7 days sunrise-sunset. Larger: Mon-Fri, Sat sunrise-noon.
Holiday Restrictions
No travel on major holidays
Urban Restrictions
Cook County: 120,000 max, 12' wide, 13'6" H. Width 14'6"-16': 9 AM-3 PM Mon-Fri in Cook/DuPage/Lake/Kane counties.

Signage & Flag Requirements

Oversize Load Sign
Required on oversize loads
Flags
Standard flags at extremities

Pilot Car Services in Illinois

PCP - Pilot Cars & Permits coordinates experienced pilot car operators throughout Illinois for both local and interstate moves. From a single-county delivery to a multi-state haul that begins or passes through Illinois, our team matches your load with the right escorts — lead cars, chase cars, high pole escorts, and steer cars — based on the dimension thresholds and travel rules outlined above.

Because oversize requirements change at every state line, we plan your route end to end so your equipment stays compliant from origin to destination. Our dispatchers handle scheduling, positioning, and communication with your drivers, keeping your oversize or overweight load moving safely and on time across Illinois and beyond.

Disclaimer: These regulations are for informational purposes only. Always verify with the Illinois Department of Transportation before moving any oversize/overweight load. Regulations change frequently.

Need a Pilot Car in Illinois?

Call us at (214) 550-7192 or order online. Our pilots are ready to escort your load anywhere in Illinois and beyond.