If your transportation business has a USDOT number, keeping the company record accurate is an ongoing responsibility.
The MCS-150 is one of the primary mechanisms FMCSA uses to collect and maintain that information.
It helps identify the registered business, the nature of its operations, and key fleet characteristics.
However, not every company uses the same form or registration procedure, and the introduction of Motus in 2026 has changed how many transactions are handled.
This guide explains how to determine whether an update is needed and what to check before submitting it.
What Is an MCS-150?
Form MCS-150 is the Motor Carrier Identification Report.
It is associated with a USDOT registration and is used to provide or update specified company information.
The form typically includes legal identity, contact details, operating classifications, cargo categories, fleet size, drivers, and mileage.
The information supports FMCSA’s registration and safety oversight systems.
Who Is Required to File?
Covered USDOT registrants generally must maintain current information and comply with the applicable biennial update requirement.
This includes many interstate motor carriers, private carriers, passenger carriers, hazardous materials operations, and intermodal equipment providers.
Certain intrastate entities have additional federal or state registration obligations.
Not every entity holding broker or freight forwarder authority has an independent MCS-150 obligation. The correct requirement depends on its registration category and operations.
Step 1: Find Your USDOT Number
Locate the USDOT number assigned to the legal business.
Check existing registration records, company documents, or FMCSA’s public search resources.
Do not apply for another number merely because the company cannot find its original registration paperwork.
Duplicate registration can create administrative complications.
Step 2: Check the Public Company Record
Use FMCSA’s SAFER Company Snapshot or current public Motus search.
Compare the registered legal name, DBA, address, operational classification, and available fleet information with current records.
Public information can help identify discrepancies.
It may not display every internal registration detail.
Step 3: Confirm the Legal Entity
Review the business’s current legal name, tax identity, address, and ownership structure.
An address change is different from creating a new legal entity.
A merger, sale, or change in ownership may require a specialized procedure.
Use FMCSA’s instructions for the actual transaction.
Step 4: Determine Whether an Initial Registration Is Needed
A company starting regulated operations may need to apply for a USDOT number.
FMCSA launched Motus on May 19, 2026, to modernize initial registration and applicable company transactions.
New applicants should use the current registration process.
Do not assume that submitting a standalone MCS-150 is always sufficient to establish a new business.
Step 5: Calculate Your Biennial Deadline
The final digit of the USDOT number determines the month.
| Final digit | Month |
| 1 | January |
| 2 | February |
| 3 | March |
| 4 | April |
| 5 | May |
| 6 | June |
| 7 | July |
| 8 | August |
| 9 | September |
| 0 | October |
The second-to-last digit determines whether the year is odd or even.
The deadline is normally the last day of the assigned month.
For example, a number ending in 70 has an October deadline in odd-numbered years.
Step 6: Check the Last Accepted Update
Find the date of the most recent accepted company-information update.
FMCSA generally considers a qualifying accepted update within the 12 months before a scheduled biennial deadline sufficient for that cycle.
A rejected submission does not count as an accepted update.
The company’s assigned filing month and year do not permanently change because of an early filing.
Step 7: Understand Temporary Enforcement Relief
FMCSA announced on September 10, 2026, that it had temporarily suspended biennial-update enforcement and related USDOT-number inactivation for deadlines due on or after June 1, 2026.
The relief addresses disruptions during the Motus transition.
The underlying update obligation remains.
Businesses should monitor FMCSA for further instructions rather than treating the suspension as a permanent exemption.
Step 8: Review Changes Since the Last Filing
Compare current company information with the last accepted registration.
Review the address, phone number, email, power units, driver counts, operational categories, and mileage.
Reportable changes generally must be updated within 30 days.
Not every change requires an entirely new USDOT registration.
Step 9: Verify Fleet and Driver Counts
Review how many vehicles the company operates and how many drivers are associated with its operations.
Consider leased equipment, seasonal operations, and changes in business activity.
Use the definitions and instructions applicable to the FMCSA filing.
Do not copy old numbers merely because they appeared on a previous accepted report.
Step 10: Review Operating Classification
Confirm whether the business is classified correctly for interstate or intrastate operations and other relevant categories.
A carrier’s activities may have changed since its initial registration.
Incorrect classifications can create inconsistent public information.
Changes should reflect the company’s actual operations.
Step 11: Review Cargo Categories
Select cargo categories that accurately describe what the company transports.
Do not select categories solely because they appear more favorable for insurance or safety comparisons.
An MCS-150 update does not substitute for any required hazardous materials registration or safety permit.
Step 12: Confirm the Correct Filing Method
FMCSA’s current registration guidance distinguishes between transactions that can be completed electronically and those requiring support tickets, forms, or additional documentation.
Use the official instructions for the intended change.
Do not assume every update follows one identical online workflow.
Authorized users should protect The public’s one account for government. | Login.gov credentials and company-account access.
Step 13: Understand Filing Fees
FMCSA lists no federal processing fee for routine biennial updates.
Private assistance providers may charge for optional services.
Other transactions, including some authority applications, can carry government fees.
Ask for a clear distinction between government charges and service charges.
Step 14: Verify Submission and Acceptance
Retain the filing confirmation.
Review the updated company record after processing.
If the submission is rejected or requires further documentation, follow the appropriate FMCSA procedure.
A confirmation that information was submitted is not always proof that a requested change was accepted.
Step 15: Understand Inactive USDOT Status
An inactive USDOT number may result from several circumstances.
A missed biennial update is only one possible cause.
FMCSA’s temporary suspension does not automatically reactivate a number inactivated for a different reason or before the covered period.
Identify the actual issue before requesting reinstatement or correction.
Step 16: Separate Operating Authority Problems
A revoked operating authority record is different from an inactive USDOT registration.
Insurance cancellations, process-agent issues, and other authority requirements may need separate attention.
An MCS-150 update alone does not necessarily restore authority.
Verify the appropriate official record.
Step 17: Keep Safety Data Separate
SAFER and other FMCSA systems may display safety-related information associated with the carrier.
Correcting company registration data does not automatically remove legitimate violations, inspections, or crashes.
Disputed safety data may require a separate process, such as DataQs.
Use the appropriate system for the issue being corrected.
Step 18: Review UCR Independently
UCR is an annual program for covered interstate transportation entities.
It is separate from the MCS-150 biennial requirement.
The 2027 UCR registration season opened October 1, 2026.
A carrier may need to complete both programs, but filing one does not complete the other.
Step 19: Maintain a Registration Calendar
Track the normal biennial update schedule, relevant company changes, operating authority, insurance, and annual UCR registration.
Assign responsibility for reviewing records.
Maintain supporting documents for changes.
This helps the company avoid relying solely on reminder emails or third-party solicitations.
Frequently Asked Questions
Does every USDOT registrant use the same MCS-150 form?
No. Different entity types and transactions may require different forms or processes.
Can I update my USDOT record if nothing changed?
Yes. Covered registrants ordinarily have a biennial obligation, subject to current enforcement relief.
Is the normal filing deadline based on the registration anniversary?
No. It is based on the final two USDOT digits.
Does a mid-cycle update reset my deadline?
No. It may satisfy the current cycle if it meets FMCSA’s timing rules.
Is the MCS-150 filing free?
The routine federal biennial update has no government processing fee.
Can an MCS-150 update fix revoked operating authority?
Not necessarily. Authority issues have separate requirements.
Does MCS-150 filing renew UCR?
No. Annual UCR registration is separate.
Keep Your USDOT Record Current
Accurate USDOT information supports federal registration administration and helps businesses identify issues before they become more difficult to resolve.
MOTUS – MCS-150 Prepayment provides private assistance with MCS-150 updates, USDOT records, and related registration matters.
Visit MOTUS – MCS-150 Prepayment or call (800) 924-1130 for assistance reviewing your MCS-150 filing requirements.
MOTUS – MCS-150 Prepayment is a private third-party service and is not affiliated with FMCSA or the U.S. Department of Transportation. Routine government MCS-150 updates have no federal processing fee. Private filing assistance is optional.
