Oversize Overweight

2023 Oversize Overweight Permit Regulations Book Cover. Image of an oversized load with the title of the book on a green background.


Motor Carriers who haul loads that exceed Missouri's legal weight and size requirements must obtain Oversize Overweight permits.

OSOW permits outline specific routes and special requirements the carrier must follow, when using the Missouri state highway system.

MoDOT Motor Carrier Services accepts applications for oversize overweight loads through our MoDOT Carrier Express online service only.  

Visit www.modot.org/mce to login or to find a link to obtain a Customer ID and password. 


On the holidays listed below, the doors to our Jefferson City office are closed. However, the online MoDOT Carrier Express system is available 24/7.

New Year's Day

Martin Luther King, Jr., Day

Lincoln's Birthday

Washington's Birthday

Truman Day (May 8)

Memorial Day

Independence Day

Labor Day

Columbus Day

Veterans Day

Thanksgiving Day

Christmas Day


As stated in the Missouri Code of State Regulations,  7 CSR 10-25.020 (1)(I),
during specific holiday periods, oversized and/or overweight loads are
not allowed to use Missouri highways. 
Restriction periods begin at noon and end 30 minutes before sunrise. 

The remaining holiday restriction periods of 2024 include:

Memorial Day 2024 - May 26 through May 28
Independence Day 2024 - July 3 through July 5
Labor Day 2024 - September 1 through September 3
Thanksgiving 2024 - November 27 through December 2
Christmas 2024 - December 24 through December 26
New Years 2025 - December 31 through January 2


(573) 291-4517   

UNDER NO CIRCUMSTANCES  will non-emergency permits be available at this number, nor any other motor carrier-related service. 

Authority for an emergency movement may be granted only after confirmation that an emergency exists by an authorized representative of the permittee who shall be required to furnish information on conditions at the location of the emergency and the name of the company to perform the emergency service. 

MoDOT representatives granting authority for an emergency movement may advise the Missouri State Highway Patrol that the move is authorized and furnish information on the vehicle involved, such as: make and license number of hauling units; axle weights; load dimensions; location; routes of travel; and the estimated time of movement.

Permits for return trips will be issued during regular working hours only. Each unit must comply with the permit regulations' limitations for weight and dimensions.