Michigan Oversize / Overweight Trucking Permits Rules and Requirement
Michigan Oversize permits OR Michigan Overweight Permits are required when a vehicle or its load exceeds the state feet legal size or weight limits and needs to travel on public highways. These permits ensure compliance with safety standards and protect road infrastructure.
Michigan oversize permits phone number: 630-222-5770
Compare Transport LLC is your trusted partner for Michigan Oversize Permits and Michigan Overweight Permits. We assist with the full Michigan oversize permits application process, including Michigan Single Trip Permits, Michigan Annual Permits, and Michigan Overhang Permits. Stay compliant with Michigan oversize permits requirements, Michigan oversize regulations, and Michigan reducible load permits. We also guide you through the mass overweight permit application and provide direct help with the mass overweight permit phone number and Michigan overweight permit office. Let us handle your MassDOT permit application with accuracy and speed.
Michigan oversize regulations
Michigan Legal Dimension Limit
Legal Dimensions for Trucking in Michigan
Legal Length in Michigan
- Semi-trailers up to 53 feet are allowed on interstates and other designated routes.
- A 53 feet trailer must have a kingpin-to-rear-axle setting no longer than 41 feet
- On routes that are not officially designated, trailers are limited to a maximum length of 50 feet
Width
- 8 feet 6 inches is permitted on designated highways
- 8 feet is the width limit on all other roads
Height
- The standard maximum height is 13 feet 6 inches.
Michigan Legal Weight Limit
The maximum allowable gross vehicle weight is up to 80,000 pounds, subject to axle configurations:
Axle weight limits Michigan
- Steer axle: 700 pounds per inch of tire width (e.g., 11-inch tires = 15,400 lbs)
- Single Axle: 20,000 lbs on designated highways (18,000 lbs elsewhere
- Tandem Axle: Up to 34,000 lbs (32,000 lbs on non-designated roads, and 26,000 lbs for a second tandem).
- Tridem Axle: 42,000 lbs (limited to 39,000 lbs on non-designated roads).
Michigan Routine Limit: Michigan Oversize and Overweight Limits
Length
- 150 feet
Width
- Maximum of 16 feet under normal conditions.
- Limited to 14 feet during spring thaw periods
Height
- The shipper or driver must verify that routes can safely accommodate any height over 13 feet 6 inches
Weight
- All air or lift axles must remain in contact with the road surface
- Vehicle registration must cover the total weight for which the permit is being requested within the state of Michigan
Superload Classifications: Shipments that exceed these limits will require superload permits, which may take up to 10 days to process after submission of all necessary documents, such as route surveys and shipper letters.
Michigan oversize permits validity period
To operate legally in Michigan, commercial carriers must secure the appropriate permits based on vehicle size, weight, and registration status. Below is a detailed guide to the validity of all key Michigan trucking permits, including oversize, overweight, superload, IRP, IFTA, TRP, and temporary trip and fuel permits.
- Trip Permits
Michigan Single-Trip Permit
Validity: Typically, valid for 5 consecutive travel days
Purpose: For one-time movements of loads exceeding legal size/weight limits.
Use: Required when transporting oversize or overweight loads through Michigan on a specific route.
Multi-Trip Permit
Validity: Varies, commonly valid for 30 to 90 days, depending on approval.
Purpose: Allows multiple movements of oversize/overweight loads over a defined period.
Use: Ideal for repetitive hauls using the same route and vehicle type.
Michigan Single Trip Permit (Intrastate)
Validity: Generally valid for 5 travel days.
Purpose: Specifically for operations within Michigan.
Use: Permits both intrastate and interstate movement inside Michigan boundaries.
IRP 72-Hour Trip Permit
Validity: 72 hours (3 days) from the start time.
Purpose: Issued as a temporary substitute for IRP registration.
Use: Allows travel within or through Michigan for 72 hours. - Annual / Extended Permits
Annual Permit
Validity: 12 months from issue date.
Purpose: Authorizes year-round operation for pre-approved routes and load types.
Use: Ideal for consistent oversize/overweight hauls.
Extended Permit
Validity: Typically 30 to 365 days, depending on the permit class.
Purpose: Provides ongoing permit coverage beyond a single trip.
Use: Functions similarly to annual permits but may be customized by type or route.
Trip and Fuel Permits (IRP/IFTA)
Validity: Usually 72 hours.
Purpose: Allows operation in Michigan without full IRP registration or IFTA credentials.
Use: For temporary trips into or across Michigan. - Special Permit Types
Oversize/Overweight Permit
Validity: 5 travel days
Purpose: Required when dimensions exceed:
Width: 8’6”
Height: 13’6”
Length: 53’ (semi-trailer)
Weight: 80,000 lbs GVW
Use: For any non-divisible load above these limits.
Fuel Permit (IFTA)
Validity: 72 hours
Purpose: Needed for fuel tax compliance for out-of-state carriers.
Use: Replaces the IFTA license for temporary fuel purchases.
Superload Permit
Purpose: For extremely large or heavy loads that exceed routine permit limits.
Use: Involves extensive planning, routing, and often engineering reviews.
Validity: Varies by load and route (typically 5–10 business days to process).
Envelope Permit
Validity: 1 year
Purpose: Issued for vehicles with loads that stay within specific “envelope” size/weight limits.
Use: Simplifies travel for frequent oversize loads that are under superload limits.
Pilot Car / Escort Vehicle Permit
Validity: Trip-based or annual.
Purpose: Ensures safety during oversize load movement.
Use: Required for loads exceeding escort thresholds (e.g., width >12’, length >90’, height >14’5”).
Divisible Load Permit
Validity & Requirement: Requires strong justification and state approval.
Purpose: Rarely issued in Michigan, as most divisible loads must be separated to meet legal limits.
Use: Case-by-case basis only, typically for specialized transport.
Operating Time Michigan:
Travel is allowed from sunrise to sunset. As a trial, weekend travel is permitted for loads up to 10 feet wide, 14 feet high, and 90 feet long—valid on Saturdays and Sundays until 3:00 PM. Continuous movement is allowed for loads that are overweight but within legal dimensions and not exceeding 70 feet in total length.
Restricted Travel Michigan:
Loads wider than 12 feet or longer than 90 feet are not allowed to move between 7:00 AM to 9:00 AM and 3:00 PM to 6:00 PM in the following counties: Genesee, Ingham, Jackson, Kalamazoo, Kent, Muskegon, Saginaw, and Wayne. Travel is also restricted during major holidays and holiday weekends.
Bridge Crossing Advisory
Escorts are provided at no cost for legal-weight loads or any load exceeding 10 feet in width. Bridge crossings are prohibited when wind speeds exceed 25 mph. The Ambassador Bridge (connecting Detroit, Michigan, and Windsor, Ontario) now charges a minimum of $50.00 for oversize/overdimension (O/D) loads and may require at least one day of advance notice. Crossing times are limited to Monday through Friday between 10:00 AM and 4:00 PM.
Lift Axles
According to the Michigan Provision Sheet, all lift or air axles must remain in contact with the ground. The permit office requires all axles including flip axles to be down when the vehicle is loaded and the gross weight exceeds the legal limit.
Seasonal Load Restrictions
Between February and April, axle weight limits and routing options may vary due to spring thaw conditions. During this period, overweight permits will not be issued. Axle group weights may be reduced by as much as 35%. For example, tandem axles may be restricted to 26,000 pounds (13,000 pounds per axle), and when using two tandem groups, one may be limited to 26,000 pounds and the other to 32,000 pounds. For updates, contact the Frost Law Hotline at 800-787-8960.
Michigan Oversize Tire Regulation
- Tire Condition and Tread Depth: All tires must be in good working condition and properly inflated. The legal minimum tread depth requirement is 2/32 of an inch for rear tires and 4/32 of an inch for front (steering) tires.
- Weight Limits Per Tire Width: The maximum allowable weight is 700 pounds per inch of tire width.
- Tire Protrusions: Tires must not have any protruding objects or materials—other than rubber or tire chains—unless they are legally permitted or specifically required for safety purposes.
- Wire-Reinforced Tires: Vehicles may use pneumatic tires reinforced with wire up to 0.075 inches thick, provided the metal-to-road contact area does not exceed 5% of the total tire contact surface (this allowance may be up to 20% during the first 1,000 miles of use).
- Seasonal Considerations: In extreme winter weather conditions, Michigan laws may allow different requirements for tires, including the use of studded tires, traction devices, and may impose additional limits to prevent excessive road wear.
Michigan Escort Requirement
Based on Length
- One escort required when load exceeds 90 feet.
- Two escorts required for loads longer than 100 feet.
- Overhangs extending more than 15 feet also require one escort.
Based on Width
- One escort is needed for widths over 12 feet.
- Two escorts are necessary when the width exceeds 14 feet
Based on Height
- Loads taller than 14 feet 5 inches need one escort with a high pole.
- If the height goes beyond 15 feet, two escorts are required, and a route survey must be conducted and approved in advance.
Michigan Banners, Lighting & Flage Requirement
All vehicles carrying oversize loads must display “Oversize Load” signs at the front and rear. Red or orange warning flags must be placed on each corner of the load, and if any part of the load extends beyond these flags, additional flags should be mounted at the widest points. If rear overhang exceeds 4 feet, a red flag is required during daylight hours, while a red light or lantern must be used during nighttime travel.
Michigan Oversize/Overweight Fee structure
Michigan offers a variety of vehicle and transportation permits, each with its own fee depending on the type and usage. Below is a breakdown of key permit types and their current associated costs:
- Single Trip Over-Dimensional (OD) Permit: $15.00
- Single Trip Oversize/Overweight (OS/OW) Permit: $50.00
- Single Trip Legal Load Permit (Michigan Only): $15.00
Michigan Oversize Overweight Permits Costs
Michigan Oversize Overweight Permits | Same Day Overweight Permits
Compare Transport LLC is your go-to choice for the best heavy-haul oversize trucking services across the United States and Canada. As a leading heavy-haul transportation company, we specialize in handling over-dimensional and overweight shipments with precision and expertise.
Our team of experienced heavy haul movers ensures the safe and efficient transportation of your cargo, no matter how challenging the dimensions or weight may be. We pride ourselves on providing top-notch heavy haul trucking services, utilizing state-of-the-art equipment and industry-leading techniques.
With Compare Transport LLC, you can trust that your heavy haul transportation needs are in capable hands. We prioritize customer satisfaction and strive to exceed your expectations with our reliable, timely, and cost-effective services. Experience the excellence of our heavy haul trucking services and let us handle your most demanding transportation requirements. Our Services include Flatbeds Trucking, Lowboy Trucking, Dry Van Trucking, Tractor trailers, Step Deck Trucking, Conestoga Trucking, Reefer Trucking, Intermodal Trucking, Cardo Van Trucking, Heavy Haul Trucking, and Power Only Trucking areas.
Compare Transport LLC is the single STOP for all Oversize / Overweight permits with one easy-to-use application.
Frequently Asked Questions
1.How to get a wide load permit in Michigan?
Just call us at 630-222-5770. We’re always here.
2.What is the oversize law in Michigan?
In Michigan, a load is considered oversized if it exceeds 8 feet 6 inches wide, 13 feet 6 inches high, or 75 feet in overall length for most vehicles. Any load that surpasses these dimensions requires an oversize permit.
3.What is the widest load you can haul without a permit in MI?
In Massachusetts, the maximum legal width for vehicles without a permit is 8 feet 6 inches. Anything wider requires an oversize permit.
4.How can I obtain Michigan oversize permits online?
Michigan oversize permits can be obtained online through our website comparetransportll.com or by calling us at 630-222-5770
5.Can oversize loads travel at night in Michigan?
Generally, oversize loads are not allowed to travel at night in Michigan. Travel is typically restricted to daylight hours, from 30 minutes before sunrise to 30 minutes after sunset, Monday through Saturday.
6.How much is an oversize permit in Michigan?
The cost of a Michigan oversize permit varies depending on dimensions and travel needs, but single-trip permits typically start around $25–$100.
7.What is considered an oversized load in Michigan?
In Michigan, loads are oversized if they exceed:
Width: 8 feet 6 inches
Height: 13 feet 6 inches
Length: 75 feet (for combinations)
8.Where can I log in to manage my Michigan oversize permit?
You can log in to manage your Michigan oversize permit through Our website comparetransportll.com
9.Where can I find the official Michigan oversize permit provisions PDF?
The official provisions can be found through our website comparetransportll.com available online.
10.What is the widest load without a permit?
The widest load you can transport without a permit in most states, including Michigan and Massachusetts, is 8 feet 6 inches. Loads wider than that require an oversize permit.
10.What is the widest load without a permit?
The widest load you can transport without a permit in most states, including Michigan and Massachusetts, is 8 feet 6 inches. Loads wider than that require an oversize permit.
11.What are the permit rules in Michigan?
Michigan requires permits for vehicles or loads that exceed legal dimensions or weight. Permits are issued based on load type, route, dimensions, and may require escorts for large loads.
12.How can I apply for Michigan oversize permits online?
Applications for Michigan oversize permits can be submitted online via our website comparetransportll.com or by calling us at 630-222-5770
13.What is the phone number for Michigan oversize permit assistance?
The phone number for assistance is 630-222-5770.
14.Can you get a Michigan permit online?
Yes, you can get Michigan oversize permit online by calling us at 630-222-5770.
15.Does Michigan require trip permits?
Yes, Michigan requires trip permits for out-of-state carriers operating without IRP registration. If you’re entering Michigan without full registration, a temporary trip permit is necessary.
16.How much is an overweight permit in Michigan?
Overweight permit costs in Michigan depend on weight, number of axles, and travel distance. Fees typically start around $50 and increase based on weight increments.
17.How much does an oversize permit cost in Michigan?
Oversize permit costs for Michigan usually range from $25 to $100+, depending on load size and trip details.
18.How much does a Michigan overweight permit cost?
A Michigan overweight permit generally costs $50 or more, with pricing based on how much your load exceeds legal limits.
19.What is the phone number for Michigan oversize permits?
You can reach Compare Transport LLC at 📞 630-222-5770 for all Michigan oversize permit services, including guidance, pricing, and applications. Their specialists are available to assist you immediately.
19.What is the phone number for Michigan oversize permits?
You can reach Compare Transport LLC at 📞 630-222-5770 for all Michigan oversize permit services, including guidance, pricing, and applications. Their specialists are available to assist you immediately.
Have Questions? We’re here to help!(630) 222-5770[forminator_form id=”8152″]