MCS-150 Updates: When and How to File
If you operate a trucking company, maintaining accurate information with the Federal Motor Carrier Safety Administration (FMCSA) is one of the most important parts of staying compliant. One requirement that often catches carriers by surprise is the MCS-150 update.
Many trucking companies mistakenly believe they only need to file an MCS-150 when they first obtain their USDOT number. Others assume they only need to update the form if something changes within their business. In reality, most motor carriers are required to complete a biennial MCS-150 update every two years—even if no information has changed.
Failing to file on time can lead to compliance issues, FMCSA penalties, and even deactivation of your USDOT number, putting your ability to operate at risk.
At A Plus Compliance Group, we help owner-operators and trucking companies stay ahead of important filing deadlines and maintain FMCSA compliance year-round. As The Carrier Advocate, our mission is to simplify compliance so you can focus on running your business.
Update Your DOT Information
Keeping your MCS-150 current is one of the easiest ways to protect your operating authority. Filing on time helps ensure the FMCSA has accurate information about your business and reduces the risk of unnecessary enforcement actions.
What Is an MCS-150?
The MCS-150, officially known as the Motor Carrier Identification Report, is the form used by the FMCSA to collect and maintain information about motor carriers operating in interstate commerce.
The information reported on the MCS-150 helps the FMCSA:
Identify active motor carriers
Maintain accurate safety records
Determine safety monitoring priorities
Communicate important regulatory notices
Monitor carrier operations
The form typically includes:
Legal business name
USDOT number
Physical and mailing addresses
Phone number and contact information
Type of operation
Cargo classifications
Number of power units
Number of CDL and non-CDL drivers
Miles traveled annually
Keeping this information current ensures the FMCSA has an accurate picture of your business and helps prevent delays or compliance issues.
Biennial Update Rules
One of the most misunderstood FMCSA requirements is the biennial MCS-150 update.
Most motor carriers must update their MCS-150 every 24 months, regardless of whether anything has changed.
This means you are generally required to file even if:
Your business information remains the same
You have not added trucks or drivers
You have not been actively operating
You did not receive a reminder from the FMCSA
Your filing schedule is based on the last two digits of your USDOT number. Those digits determine the month and year your biennial update is due.
Missing this requirement can place your company out of compliance and increase the risk of enforcement action.
When Are MCS-150 Updates Required?
In addition to the biennial filing requirement, you should update your MCS-150 whenever significant business information changes.
Examples include:
Business Name Changes
If your legal business name changes, update your MCS-150 as soon as possible.
Business Address Changes
Changes to your physical or mailing address should be reported promptly to ensure you receive important FMCSA correspondence.
Contact Information Changes
Updating your phone number or email address helps ensure the FMCSA can reach you regarding compliance matters.
Changes to Your Fleet
If your number of power units or drivers changes significantly, your records should be updated.
Operational Changes
Changes involving your operating classification, cargo types, or business structure should also be reflected on your MCS-150.
Maintaining accurate records reduces confusion and helps prevent delays during inspections or audits.
Stay FMCSA Compliant
Compliance doesn't end once you receive your USDOT number. Regular updates, organized records, and proactive monitoring help protect your business from unnecessary violations and operational interruptions.
Common MCS-150 Filing Mistakes
Although the filing process is relatively straightforward, mistakes are common.
Missing the Biennial Deadline
Many carriers mistakenly believe they only need to update the form when business information changes.
Incorrect Company Information
Outdated addresses, phone numbers, or email addresses may cause you to miss important FMCSA notifications.
Incorrect Driver or Vehicle Counts
Accurate information is important because the FMCSA uses this data to monitor carrier activity.
Failing to Update Operational Information
If your company changes cargo classifications or operating authority, your MCS-150 should reflect those changes.
Assuming Someone Else Filed It
Some carriers rely on a third party without confirming the filing was completed. Always verify that your update has been successfully submitted.
Avoiding these mistakes can save time and prevent compliance headaches later.
DOT Deactivation Risks
Failing to file your MCS-150 can have serious consequences.
Potential risks include:
Deactivation of your USDOT number
Civil penalties
Delays in renewing registrations
Difficulty obtaining permits
Increased FMCSA scrutiny
Problems during roadside inspections
Interruptions to your operations
A deactivated USDOT number may prevent you from legally operating until your records are brought back into compliance.
Staying current with your filings helps keep your authority active and your business moving.
Best Filing Practices
A few proactive habits can make managing MCS-150 updates much easier.
Track Your Biennial Due Date
Mark your filing deadline on your compliance calendar and set reminders well in advance.
Review Your Information Annually
Even if your biennial filing isn't due, reviewing your company information each year helps ensure accuracy.
Keep Business Records Organized
Maintain current records for your drivers, equipment, insurance, and business operations.
Confirm Your Filing
After submitting your update, verify that the FMCSA has processed your filing correctly.
Work With a Compliance Partner
Many trucking companies choose to outsource compliance management to reduce administrative burdens and avoid missed deadlines.
Why Compliance Management Matters
An MCS-150 update is just one part of maintaining FMCSA compliance.
Successful trucking companies also monitor:
Driver Qualification (DQ) Files
Drug & Alcohol Consortium requirements
FMCSA Clearinghouse obligations
IRP renewals
IFTA filings
UCR registration
Vehicle maintenance records
Hours-of-Service compliance
DOT audit readiness
Keeping up with every requirement can be challenging while running a trucking business.
At A Plus Compliance Group, we proudly serve as The Carrier Advocate, helping carriers stay organized, meet deadlines, and remain compliant with FMCSA regulations.
You Drive. We Do the Paperwork.
Need Help Filing Your MCS-150?
Whether you're filing your biennial update, reporting changes to your business, or simply want help managing DOT compliance, we're here to help.
Book Your Free Compliance Consultation
Our experienced team can help you complete your MCS-150 accurately, monitor future deadlines, and keep your trucking company compliant year-round.
Contact A Plus Compliance Group today to schedule your free consultation.
Frequently Asked Questions
What is an MCS-150 update?
An MCS-150 update is the process of updating your Motor Carrier Identification Report with the FMCSA. It keeps your USDOT information accurate and helps maintain compliance with federal regulations.
How often do I need to file an MCS-150?
Most trucking companies must file a biennial MCS-150 update every two years, even if there have been no changes to their business information.
How do I know when my MCS-150 is due?
Your filing schedule is determined by the last two digits of your USDOT number. These digits establish the month and year your biennial update is due.
Do I need to update my MCS-150 if nothing has changed?
Yes. Most carriers are required to file their biennial update regardless of whether any business information has changed.
What happens if I don't file my MCS-150?
Failure to file can result in USDOT number deactivation, civil penalties, increased FMCSA scrutiny, registration issues, and interruptions to your operations.
Can I update my MCS-150 if my business information changes?
Absolutely. You should update your MCS-150 whenever there are changes to your business name, address, contact information, fleet size, operating classification, or other important company details.
Can A Plus Compliance Group help with MCS-150 updates?
Yes! We help owner-operators and trucking companies file MCS-150 updates, monitor biennial deadlines, maintain accurate FMCSA records, and stay compliant with DOT regulations.