Do You Need an Illinois Trucking Permit?
DOT Office
2300 S. Dirksen ParkwaySpringfield, IL 62764
Permit Office
Monday - Friday
7:00 AM - 4:30 PM Central Time
217-782-3572
Permit Types
Permit Validity
5 Travel Days
Transportation Restrictions
Movements are prohibited on New Year’s Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day. Movements will not be allowed later than noon on the day preceding a holiday or a holiday weekend.
Movement not allowed when route is covered with snow or ice or when visibility is impaired by rain, snow, fog, smog, or at anytime travel conditions are considered to be unsafe by the DOT or State Police. Movements of house trailers over 12’ wide are prohibited when wind gusts exceed 25 miles per hour.
Weekend Travel
Over dimension permit loads with dimensions equal to or less than 14’6”’ wide, 15’ high, 145’ long are authorized to move from ½ hour before sunrise until ½ hour after sunset, 7 days a week. Over dimension permit loads with dimensions greater than 14’6” wide, 15’ high, 145’ long are authorized from ½ hour before sunrise to ½ hour after sunset Monday through Friday, and from ½ hour before sunrise until noon, Saturday (unless specified otherwise on the provision sheet or permit). Overweight permit loads with legal dimensions are allowed 24 hours a day, 7 days a week movement. Movements are further restricted on specific holidays and holiday weekends
Transportation Requirements
Provision Regulations
Superloads
Anything over Routine Issue dimensions requires special review from the DOT.
Oversize Load Signs
“Oversize Load” signs required for any vehicle or load over 10’ wide, 14’6” high, or 75’ long.
Flags/Lights
An 18” red flag required at the extremities and four corners of any overwidth load and at the extreme ends of all protrusions, projections, or overhangs.
Legal Limits
| Component | Restriction |
|---|---|
| Single Axle | 20,000 lbs. |
| Tandem Group | 34,000 lbs. |
| Tridem Group | 42,500 lbs. |
| Gross Weight | 80,000 lbs. |
| Width | 8'6" |
| Height | 13'6" |
| Length - Semi-Trailer | 53' |
| Length | 65' |
| Overhang | 3' Front | 4' Rear |
Routine Issues
| Component | Restriction |
|---|---|
| Single Axle | 25,000 lbs. |
| Tandem Group | 48,000 lbs. on a Tractor |
| Tandem Group | 60,000 lbs. on a Trailer |
| Tridem Group | 68,000 lbs. |
| Quad Group | 76,000 lbs. |
| Gross Weight - 5 Axles | 100,000 lbs. |
| Gross Weight | 120,000 lbs. |
| Width | 14'6" |
| Height | 15' |
| Length | 145' |
Routine issue dimensions and weights reflect maximum dimensions for Class A truck and trailers.
Escort Requirements
| Dimension | Requirement |
|---|---|
| Width Over 14'6" - 16' | 1 Front on Undivided Highways, 1 Rear on Divided Highways |
| Width Over 16' - 18' | 3 (2 Front & 1 Rear) |
| Width Over 18' | 3 (2 Front & 1 Rear) + Police |
| Height Over 14'6" - 18' | 1 Front with High Pole |
| Height Over 18' | 2 (Front with High Pole & Rear) + Police |
| Length Over 110' - 145' | 1 Front on Undivided Highways, 1 Rear on Divided Highways |
| Length Over 145' - 200' | 3 (2 Front & 1 Rear) |
| Length Over 200' | 3 (2 Front & 1 Rear) + police |
| Weight Over 230,000 lbs. | Police |
