The MCS-150 biennial update is a required FMCSA filing for motor carriers and other regulated entities under FMCSA jurisdiction. While the filing may seem routine, missing the deadline can create serious compliance issues for a carrier.
The FMCSA requires regulated entities to update their information every two years, even if nothing has changed.
Why the MCS-150 Filing Matters:
The MCS-150 keeps a carrier’s USDOT record up to date. It confirms or updates the company’s legal name, address, contact information, vehicle count, driver count, cargo classification, operation type, and other core business details.
This information supports federal oversight, safety monitoring, and carrier identification. When the information is outdated, the company’s public record may no longer accurately reflect its operations.
What Happens if You Miss the Deadline?
Failing to file an MCS-150 can result in several consequences.
- USDOT Number Deactivation: Failure to complete the biennial update may result in the deactivation of the USDOT number. A deactivated USDOT number can prevent a carrier from legally operating commercial motor vehicles. For active carriers, this can create immediate business disruption, including stopped operations, delayed loads, lost revenue, and customer service issues.
- Civil Penalties: The FMCSA may impose civil penalties for failure to complete required updates. FMCSA guidance states that failure to complete biennial updates may subject entities to civil penalties of up to $1,000 per day, with a maximum penalty of $10,000. For small fleets and owner-operators, even a short compliance delay can create unnecessary financial exposure.
- Public Record Issues: An outdated or missed filing can affect the accuracy of the company’s USDOT record. Carriers, brokers, shippers, insurers, and other parties may review public registration information when assessing whether a company appears active and compliant. Keeping the MCS-150 current helps maintain a cleaner compliance profile.
- Operational Delays: If a USDOT number is deactivated, the company may need to complete the required filing and wait for the record to be updated before returning to normal operations. This can delay dispatch, onboarding, customer commitments, and other business activities.
Do You Still Need to File if Nothing Changed?
Yes. The FMCSA requires a biennial update every two years, even if the company has not changed its information.
The filing is not only for changes. It is also used to confirm that the information on file is still accurate.
How Do You Know When Your MCS-150 Is Due?
The MCS-150 filing deadline is based on the last two digits of the USDOT number.
The second-to-last digit determines the filing year. An odd number of files in odd-numbered years, and an even number of files in even-numbered years.
The last digit determines the filing month:
USDOT Number Ends In Filing Month
1 January
2 February
3 March
4 April
5 May
6 June
7 July
8 August
9 September
0 October
The update must be filed by the last day of the assigned month.
What Should You Do if You Missed It?
If you missed your MCS-150 deadline, do not ignore the issue. The carrier should review its USDOT record, confirm whether the number is active or deactivated, and complete the required filing as soon as possible.
If any business information has changed, the filing should be updated accurately rather than rushed with outdated information.
File With FMCSA.com
A missed MCS-150 filing can lead to USDOT deactivation, penalties, and business disruption. The best approach is to keep the filing current before it becomes a larger compliance issue. FMCSA.com assists carriers with MCS-150 biennial updates, missed filings, DOT reactivations, and company information changes.
Whether you need help understanding the new requirements, preparing your drivers, or managing your broader FMCSA compliance obligations, our team is here to help.
Need assistance today?
- Call (800) 500-9295 to speak with a compliance specialist directly to help you navigate your filings with confidence or
- Self-File at FMCSA.com
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Frequently Asked Questions About Missing an MCS-150 Filing
Missing your MCS-150 filing can create serious compliance issues with the FMCSA. Depending on the circumstances, your USDOT Number may become inactive, and you could face operational delays or other administrative consequences.
Submitting the required update as soon as possible can help restore your registration and reduce further disruption.
The MCS-150, or Motor Carrier Identification Report, is the form used by the FMCSA to maintain accurate registration information for companies operating under a USDOT Number.
It includes details such as your business name, address, fleet size, driver count, operating classification, and cargo information.
The FMCSA uses the MCS-150 to maintain accurate carrier records and support safety oversight programs.
Keeping registration information current helps regulators identify active carriers and monitor commercial transportation activity.
Yes. Most carriers with a USDOT Number must file an MCS-150 at least once every two years, even if no information has changed.
This requirement is commonly known as the biennial update.
Yes. Even if your business information is exactly the same, the FMCSA still requires the biennial filing.
The update confirms that the information already on file remains accurate.
Yes. Failure to submit a required MCS-150 may result in your USDOT Number becoming inactive.
If this happens, your ability to legally operate commercial vehicles may be interrupted until the required filing is completed.
An inactive USDOT Number means your registration is no longer in good standing with the FMCSA.
This may affect your ability to operate, accept loads, or complete certain business transactions until your registration is updated.
Yes. Federal regulations authorize civil penalties for failing to comply with MCS-150 filing requirements.
In some situations, penalties may reach up to $1,000 per day, with a maximum penalty of $10,000.
Yes. An overdue filing may lead to operational delays, interrupted service, and additional administrative work.
Keeping your registration current helps avoid unnecessary disruptions.
Yes. If your MCS-150 is overdue, your public registration information may no longer accurately reflect your business.
Many brokers, insurers, and shippers review these records before doing business with a carrier.
It can. Brokers often review a carrier’s FMCSA registration before assigning freight.
Outdated or inactive registration records may create additional questions during the carrier qualification process.
Insurance companies may review your FMCSA registration when underwriting or renewing policies.
Maintaining accurate registration records helps prevent unnecessary complications.
Your filing schedule is based on the last two digits of your USDOT Number.
The second-to-last digit determines the filing year, while the final digit determines the filing month.
Your MCS-150 must be filed by the last day of your assigned filing month.
Submitting the update early can help avoid last-minute issues.
Yes. If you miss your deadline, you should complete the required filing as soon as possible.
Delaying the update may increase the likelihood of additional compliance issues.
Review your USDOT registration to determine whether your number remains active, then complete the required filing promptly.
If business information has changed, be sure to update it accurately before submitting the form.
The MCS-150 includes information such as your legal business name, address, contact details, fleet size, driver count, cargo classifications, operating classification, and Vehicle Miles Traveled (VMT).
Keeping these details current helps maintain accurate FMCSA records.
Yes. An overdue MCS-150 can also be used to update inaccurate or outdated registration information.
Submitting accurate information is just as important as meeting the filing deadline.
Not necessarily. Every situation is different, and enforcement depends on the specific circumstances.
However, carriers should avoid delaying required filings because the potential consequences become greater over time.
Yes. Registration issues may affect other FMCSA processes, particularly if your USDOT Number becomes inactive.
Keeping your registration current helps support smoother compliance activities.
Many carriers maintain a compliance calendar and review their FMCSA registration annually.
Regular reviews make it easier to identify upcoming deadlines before they become urgent.
Yes. Waiting two years to review your registration can allow outdated information to remain on file.
Annual reviews help ensure your records continue to match your business operations.
Yes. Many carriers work with DOT compliance professionals to prepare overdue filings, update company information, and help restore compliance.
Professional assistance can also identify other registration issues that may need attention.
Many missed filings occur because carriers overlook the biennial deadline, forget to update business information, or assume no filing is needed if nothing has changed.
Keeping track of your filing schedule can help prevent these common mistakes.
Timely MCS-150 filings help keep your USDOT Number active, maintain accurate FMCSA records, and reduce the risk of avoidable compliance problems.
Staying current also supports smoother business operations and helps ensure your public registration accurately reflects your company.
If you discover your filing is overdue, act promptly by reviewing your USDOT registration, confirming whether your number remains active, and submitting an accurate MCS-150 as soon as possible. Keeping copies of your filing confirmation and reviewing your registration regularly can help prevent future compliance issues.
If you are unsure whether your filing is overdue or need assistance restoring your registration, working with a qualified DOT compliance professional can help ensure your records remain accurate and your USDOT Number stays in good standing.
