MoDOT Carrier Express upgrade of IRP, IFTA and Intrastate Operating Authority in early 2022
You asked for it and it's coming! In January 2022, we'll deliver an improved, easy-to-follow credential system within MoDOT Carrier Express. IRP, IFTA and intrastate operating authority programs will become clearer and more instinctive to use.
MoDOT Motor Carrier Services is working with its vendor to ensure the program adheres to all laws and rules while simplifying registration,
update and payment functions.
Anticipated improvements include the ability to upload documents directly into transactions and renewal applications. You'll also find a dashboard that shows the status of these requests. No more calling to check the status!
Account invoices
In preparation for the system change, MoDOT is now mailing invoices for all outstanding account balances.

If you receive an invoice, please settle your account as soon as possible. Accounts that are non-compliant will neither be eligible to renew nor process a supplement.

If your account should be closed, or you have questions about an invoice, please call us at 1-866-831-6277.
Installation of new system will involve cutover period
MoDOT expects a cutover period in mid-January. During this time, the old system will wrap up its work and the new system will be installed, quickly tested and connected to MoDOT Carrier Express’ other functions.
Expect a few days when IRP, IFTA and Intrastate functions are unavailable. We will ensure the cutover is timed for minimal disruption. More detail will follow in future newsletter articles, in email and other announcements. 
OSOW Rule changes effective May 30
On May 30, 2021, an update to the rule which governs the movement of oversize overweight loads goes into effect.
As required by a law that passed in 2018, Missouri will allow cranes with up to four axles to move under either a single-trip permit or a blanket-permit. The blanket permit fee is $300 per year.
Other changes include:
  • Allowing single trip permits of loads 10’6” wide and less at night, with escorts.
  • Expanding the maximum width allowed by a blanket permit from 12’4” to 12’6”.
  • Changes to escort requirements
  • Expands the threshold for daytime escorts for width from 12’4” to 12’6”
  • New, less restrictive requirements for loads wider than 12’6”.
  • New, less restrictive requirements for loads greater than 160,000 pounds.
  • Additional 8- and 9-axle configurations and clarification of axle language for 10-, 11- and 12-axle configurations.
  • A statement allowing permit fees to be waived by the MoDOT Motor Carrier Services director in times of emergency.
  • Additional language to clarify the live-load analysis performed by MoDOT Carrier Express
  • Clarification of the holiday restriction period for the occasions when Christmas and New Year’s Day occur on a Friday.

An electronic version of the new rule will be available at on June 1.
To request a paper copy, send an email to Use “Request for OSOW Rule copy” as the subject line and include both the shipping address and the number of copies desired. Expect first deliveries around mid-June as the book cannot be printed until the rule is in effect.
You can make a difference
Lives at risk in work zones - Frank's story
Transportation Enforcement Investigator Frank Shadwell joined MCS' Safety & Compliance team after working on the St. Louis maintenance team.

In January 2019, before joining MCS, Frank drove at the rear of a protective truck "train" on Interstate 270 while crew members picked up debris from the lanes. He towed a truck-mounted attenuator, AKA a crash cushion, behind his vehicle.

TMAs address a common problem - vehicles crashing into the back of trucks in a moving work zone. They absorb some of the energy of a crash, reducing injury to motorists and workers.

"On this day, I looked in my mirror and saw a pickup coming in fast toward my crew," said Shadwell.

Frank activated bright flashing lights to get the driver's attention. The truck didn't move over, so Frank eased off the brake and rolled slowly forward to further reduce the now inevitable impact. Moments later, the driver struck the TMA at high speed, flipping the pickup so it landed atop the cushion, facing oncoming traffic.

Though the cushion and Frank's actions prevented serious injury to the pickup driver and maintenance crew, the entire incident was unnecessary. Please work with us and be an attentive driver.
Every month, MoDOT MCS sends out surveys to our customers to learn how well we are serving you and what we can improve.

We look at every rating and comment. Your suggestions make their way into our decisions about online system updates, staff scheduling and more.

We appreciate everyone who takes a few minutes to complete the Survey Monkey questionnaire. Thanks to your input, we're able to adapt and serve you better. THANKS FOR THE FEEDBACK!
I-270 rebuild continues in North St. Louis County
St. Louis' I-270 North Design Build Project continues between McDonnell Boulevard to Bellefontaine Road (MM 23-32). Replacement and improvement of corridor elements will enhance traffic operations for years to come.

Improvements include the reconstruction of eight interchanges, construction of an additional lane between Lindbergh and Lewis and Clark, new bridges and update or replacement of signals.
Expect lane closures, especially around interchanges and some ramp closures this spring and summer.

The project is on schedule to complete in December 2023. To learn more, visit the project website,

FUN TRUCKING FACT: 140,000 vehicles, 18% of them heavy trucks, travel I-270 each day
Introducing... the UCR decision tree
The Unified Carrier Registration Plan website now boasts a tool you can use to determine whether you need to register for UCR.
Simply visit and answer a few questions to receive guidance.
IRP apportioned plate application and payment deadlines arrive well in advance of plate expirations.

To avoid late fees, apply for renewal and submit supporting documents by the "file by" date. Then simply make payment on the first business day of the expiring month.
Dates of Note
31 - Memorial Day - MoDOT offices are closed.
1 - Last day to pay for renewal of IRP apportioned license plates that expire June 30. After this day, a late fee applies.
5 - Independence Day (Observed). MoDOT offices are closed.
1-31 – IFTA 2nd quarter 2021 fuel tax filing period. Payment, if required, is due July 31
1 - Last day to file for renewal of IRP apportioned license plates that expire Sept. 30. After this day, a late fee applies.
30 – Carriers with apportioned plates expiring today must display new credentials tomorrow.
1 - Carriers with apportioned plates that expire Dec. 31 must file an IRP renewal application
by this date.
1-31 - IFTA 3rd Quarter 2021 fuel tax filing period
11 - Columbus Day - MoDOT offices closed
MoDOT Offices Closed
Mon., May 31 - Memorial Day
Mon., July 5 - Independence Day (Obsvd.)
Mon., Sept. 6- Labor Day
Mon., Oct. 11 - Columbus Day
Thurs., Nov. 11 - Veterans Day
Thurs., Nov. 25- Thanksgiving Day
Fri., Dec 24 - Christmas Day (Observed)
Fri., Dec 31 - New Years Day (Observed)
During these periods, oversized loads are not allowed to use Missouri highways.
Memorial Day - May 28 - June 1
Independence Day - July 3 - July 5
Labor Day - Sept. 3 - Sept. 7
Thanksgiving - Nov. 24 - Nov. 29
Christmas - Dec. 24 - Dec. 27
New Year's Day - Dec. 31 - Jan. 3

Restricted periods begin at noon on the first day and end 30 minutes before sunrise on the last day.