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Illinois
Speed Limits
Truck speed limits in Illinois: Highway 70 mph, Rural 70 mph, Urban 55 mph. Same as passenger vehicles on most roads; lower limits in Chicago metro. Left lane: Trucks prohibited from left lane on interstates with 3+ lanes where posted.
Winter & Chain Laws
No mandatory chain law; chains permitted during winter weather Construction: Heavy construction season April-November; extensive Chicago-area interstate projects.
Restricted Routes
Chicago metro has extensive truck restrictions; Lake Shore Drive prohibits commercial vehicles; numerous low bridges in Chicago area; designated truck routes required in many suburbs
Hours of Service & ELD
Aggressive enforcement; ISP commercial vehicle units very active ELD: Full federal ELD mandate compliance required.
Inspections & Enforcement
High; Illinois State Police dedicated truck enforcement; frequent weigh station activity Drug testing: Federal DOT drug testing requirements apply.
Parking Availability
Limited in Chicago metro; adequate downstate along I-55, I-57, I-74
Official Source
For the most current trucking regulations in Illinois, visit the official enforcement page at https://idot.illinois.gov/travel-information/trucking-motor-carriers.html.
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Trucking regulations change frequently. Always verify current rules with the official state DOT or highway patrol before operating. This guide is for informational purposes only. Data reflects regulations as of early 2026.