Michigan Oversize Permits
Michigan Oversize permits: Reliable overweight & oversized trucking tricking permits for
Single Trip, fuel, overhang, and annual permits.
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With Michigan DOT
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Single Trip, Fuel
& Annual Permits
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Oversize Permit Phone No.
(630) 800-4551
Michigan Oversize / Overweight Trucking Permits Rules and Requirement
Michigan Overweight & Oversize Trucking Permits for Single Trip, Fuel, Overhang and Annual Permits
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.
Massachusetts Oversize and Overweight Permits phone number: (630) 800 4551.
Overweight Permit 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 permit application with accuracy and speed.
A Michigan Overlength Permit is required for vehicles or loads that exceed the state’s legal length limits. This permit allows carriers to safely and legally transport long or oversized cargo, such as beams, pipes, construction materials, and other extended loads, on Michigan roadways.
A Michigan Fuel or Trip Permit is generally required for commercial vehicles that are not properly registered under the International Fuel Tax Agreement (IFTA) or the International Registration Plan (IRP). A single-trip permit allows eligible commercial vehicles to operate legally within Michigan for a specific trip while complying with applicable fuel tax and vehicle registration requirements.
A Michigan Overhang Permit may be required when a load extends beyond the legal front or rear overhang limits of a vehicle. This permit helps ensure that overhanging cargo is transported safely and in accordance with state regulations, reducing potential risks to other motorists and road users.
A Michigan Overwidth Permit is required for vehicles or loads that exceed the state’s legal width limits. This permit allows the safe and legal transportation of wide or oversized cargo, including heavy machinery, large equipment, prefabricated structures, and other oversized loads, in compliance with applicable Michigan transportation regulations.
Michigan oversize regulations
Michigan Legal Dimension Limit
| Legal Length in Michigan | Width | Height |
|---|---|---|
|
Semi-trailers up to 53 feet are allowed on interstates and other designated routes.
A 53-foot 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. |
8 feet 6 inches is permitted on designated highways.
8 feet is the width limit on all other roads. |
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 | Single Axle | Tandem Axle | Tridem Axle |
|
700 pounds per inch of tire width
(e.g., 11-inch tires = 15,400 lbs) |
20,000 lbs on designated highways
(18,000 lbs elsewhere) |
Up to 34,000 lbs
(32,000 lbs on non-designated roads, and 26,000 lbs for a second tandem) |
42,000 lbs
(limited to 39,000 lbs on non-designated roads) |
Michigan Routine Limit: Michigan Oversize and Overweight Limits
| Length | Width | Height | Weight |
|---|---|---|---|
| 150 feet |
Maximum of 16 feet under normal conditions.
Limited to 14 feet during spring thaw periods. |
The shipper or driver must verify that routes can safely accommodate any height over 13 feet 6 inches. |
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
| Permit Type | Validity | Purpose / Use |
|---|---|---|
| Michigan Single-Trip Permit | 5 consecutive travel days | For one-time movements of loads exceeding legal size or weight limits. Required for oversize or overweight loads traveling through Michigan on a specific route. |
| Multi-Trip Permit | 30 to 90 days, depending on approval | Allows multiple movements of oversize or overweight loads over a defined period. Ideal for repetitive hauls using the same route and vehicle type. |
| Michigan Single Trip Permit (Intrastate) | 5 travel days | Specifically for operations within Michigan. Permits intrastate and interstate movement inside Michigan boundaries. |
| IRP 72-Hour Trip Permit | 72 hours (3 days) | Temporary substitute for IRP registration. Allows travel within or through Michigan for 72 hours. |
| Annual Permit | 12 months from issue date | Authorizes year-round operation for pre-approved routes and load types. Ideal for consistent oversize or overweight hauls. |
| Extended Permit | 30 to 365 days | Provides ongoing permit coverage beyond a single trip. May be customized by permit type or route. |
| Trip and Fuel Permits (IRP/IFTA) | Usually 72 hours | Allows temporary operation in Michigan without full IRP registration or IFTA credentials. |
| Oversize/Overweight Permit | 5 travel days |
Required when loads exceed:
|
| Fuel Permit (IFTA) | 72 hours | Needed for fuel tax compliance for out-of-state carriers. Replaces the IFTA license for temporary fuel purchases. |
| Superload Permit | Varies by load and route | For extremely large or heavy loads exceeding routine permit limits. Involves extensive planning, routing, and often engineering reviews. Processing typically takes 5–10 business days. |
| Envelope Permit | 1 year | Issued for vehicles with loads that remain within specific envelope size and weight limits. Simplifies travel for frequent oversize loads under superload limits. |
| Pilot Car / Escort Vehicle Permit | Trip-based or annual | Ensures safety during oversize load movement. Required for loads exceeding escort thresholds, such as width over 12', length over 90', or height over 14'5". |
| Divisible Load Permit | Case-by-case | Requires strong justification and state approval. Rarely issued in Michigan because most divisible loads must be separated to meet legal limits. |
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 (630) 800 4551
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 | Based on Width | Based on Height |
|---|---|---|
|
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. |
One escort is needed for widths over 12 feet.
Two escorts are necessary when the width exceeds 14 feet. |
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
Frequently Ask Questions about Michigan Oversize Overweight Permits
Michigan oversize permits can be obtained online through our website overweightpermit.com or by calling us at (630) 800 4551
n 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.
In Massachusetts, the maximum legal width for vehicles without a permit is 8 feet 6 inches. Anything wider requires an oversize permit.
Michigan oversize permits can be obtained online through our website comparetransportll.com or by calling us at (630) 800 4551
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.
The cost of a Michigan oversize permit varies depending on dimensions and travel needs, but single-trip permits typically start around $25–$100.
In Michigan, loads are oversized if they exceed:
Width: 8 feet 6 inches
Height: 13 feet 6 inches
Length: 75 feet (for combinations)
ou can log in to manage your Michigan oversize permit through Our website overweightpermit.com
The official provisions can be found through our website overweightpermit.com
available online.
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.
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.
Applications for Michigan oversize permits can be submitted online via our website overweightpermit.com or by calling us at 630-222-5770
The phone number for assistance is (630) 800 4551
Yes, you can get Michigan oversize permit online by calling us at (630) 800 4551.
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.
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.
Oversize permit costs for Michigan usually range from $25 to $100+, depending on load size and trip details.
A Michigan overweight permit generally costs $50 or more, with pricing based on how much your load exceeds legal limits.
1You can reach Overweight Permit at 📞 (630) 800 4551
for all Michigan oversize permit services, including guidance, pricing, and applications. Their specialists are available to assist you immediately.