Disclosure: Informational only. We are not FMCSA or USDOT. Always verify your status directly through official FMCSA systems.
Your USDOT record is what FMCSA, inspectors, brokers, and insurers see when they look you up. If it says two trucks and you run five, or lists an address you left last year, every one of them is working from the wrong facts.
What USDOT Number Information Changes Must Be Updated?
Short answer: Any change to the information on your MCS-150 must be reported to FMCSA within 30 days, and the whole record must be updated every 24 months even if nothing changed. That covers your legal and DBA name, principal and mailing address, phone and email, company officials, type of operation, cargo and hazmat, number of trucks and trailers, number of drivers, and annual mileage. A change in legal entity or ownership may require a new USDOT number rather than an update.
USDOT Record Attribute Map: What to Update and When
Every field below comes from Form MCS-150. The right-hand column shows what the field affects, which is why getting it right matters.
What to Update on Your MCS-150 Form
Review the company details that may need updating when your business, operations, vehicles, or contact information changes.
| Attribute (MCS-150 Item) | Update When | What It Affects |
|---|---|---|
| Legal business nameItem 1 | Your legal business name changes on official documents. | Identifies the legal entity associated with the USDOT number. Operating authority records may also need updating. |
| DBA nameItem 2 | You add, remove, or change a trade name. | Affects the trade name shown in FMCSA records and may affect required carrier identification and truck markings. |
| Principal place of businessItems 3–7 | You move your main business location or yard. | Affects your official business address for FMCSA records, notices, and potential onsite investigations. A P.O. box alone is not an acceptable physical address. |
| Mailing addressItems 8–12 | Your mailing address changes. | Helps ensure delivery of FMCSA correspondence, including warning letters and safety-rating notices. |
| Phone, cell, fax, and emailItems 13–15, 20 | Any listed contact detail changes. | Keeps contact information current for FMCSA communications and applicable account or PIN-related correspondence. |
| EIN or SSNItem 19 | Your applicable tax identification information changes. | Helps associate the carrier registration record with the correct business or individual. |
| Carrier mileageItem 21 | At least as required for each biennial update. | Provides mileage information used in FMCSA carrier data and certain Safety Measurement System calculations. |
| Company operationsItem 22 | You start or stop interstate, intrastate, or hazardous-material operations. | Helps FMCSA determine your reported operation profile and which federal or state requirements may apply. |
| Operation classificationItem 23 | You change between for-hire, exempt for-hire, or private operations. | Affects your carrier classification and may affect whether operating authority is required. |
| Cargo classificationsItem 24 | You begin or stop hauling types of freight represented in your filing. | Keeps your reported cargo profile aligned with your actual transportation operations. |
| Hazardous materialsItem 25 | You start or stop hauling hazmat or change applicable classifications. | May affect insurance requirements, permits, and hazardous-material safety oversight. |
| VehiclesItem 26 | You add, sell, or lease trucks or trailers, as applicable to the reported information. | Keeps reported power-unit information current and may affect carrier data used in safety monitoring. |
| DriversItem 27 | Your reported driver count or CDL driver count changes. | Keeps your carrier profile and reported workforce information current. |
| Company officialsItem 30 | Owners, officers, or other listed company officials change. | Keeps the officials identified in your registration record current for applicable filing and certification purposes. |
For field-by-field filing help, see our MCS-150 form filing guide.
Changes That Need More Than an MCS-150 Update
Most changes are a simple MCS-150 update. Three kinds need more.
1. Legal name change with operating authority. Updating the name on your USDOT record is free with an MCS-150. If you also hold operating authority, file Form MCSA-5889 with a $14 fee, plus legal proof of the change: amended articles for a corporation, or a court order or similar document for a sole proprietor. After FMCSA issues a re-entitlement letter, file an amended BOC-3 and updated insurance filings within 30 days, or the authority is at risk of revocation (FMCSA).
2. New legal entity or new owner. USDOT numbers are not transferable and belong to one legal entity. A corporation or partnership that changes officials, address, or other details but stays the same legal entity keeps its number. A sole proprietor who forms a company may keep the number only if the business runs essentially the same way, with the same officials, address, operations, employees, and assets (FMCSA). FMCSA notes that an ownership change can require a new USDOT number.
3. Switching to for-hire. Changing your operation classification from private to authorized for-hire means you also need operating authority, not just an updated record.
If you are unsure which bucket a change falls into, check with FMCSA before filing.
How to Update Your USDOT Information
FMCSA’s registration system changed in 2026, so use the current channels:
- Use Motus. FMCSA replaced its legacy registration systems with Motus in May 2026. Registration updates now go through Motus at motus.dot.gov. FMCSA stopped accepting paper transactions on September 30, 2025.
- File within 30 days of a change. Don’t wait for your biennial date to report a move, a new truck count, or a change in operation.
- File your biennial update on schedule. Your month comes from the last digit of your USDOT number, and the second-to-last digit sets odd or even years (FMCSA). If you reported changes within the 12 months before your due date, FMCSA counts that as your biennial update.
- Check the result. Look up your USDOT number on the SAFER Company Snapshot and confirm the change shows.
For a walkthrough of the form itself, see what the MCS-150 form is.
Why Accurate USDOT Data Matters
Outdated registration data causes problems in three places.
Your CSA scores. In the Safety Measurement System, the Unsafe Driving and Crash Indicator measures are divided by your average power units, adjusted by a utilization factor based on miles per power unit (SMS Methodology). Both numbers draw on what you report on the MCS-150. Reporting fewer trucks or fewer miles than you actually run makes the same violations count for more.
FMCSA notices. Warning letters, investigation notices, and safety rating notices go to the address on file. A proposed Unsatisfactory rating gives a carrier 45 or 60 days to respond, and that clock starts from the notice, so a letter sent to an old address costs you time. See our guide to FMCSA safety ratings.
Your USDOT number’s status. FMCSA says failing to complete a biennial update results in deactivation of the USDOT number and may bring civil penalties of up to $1,000 per day, up to $10,000 (FMCSA). During the 2026 Motus transition, FMCSA temporarily suspended enforcement of biennial updates and USDOT number inactivation. Don’t rely on that pause; keep the record current.
Keep Your USDOT Record Accurate
SafeRoad Compliance files MCS-150 updates, biennial updates, and name changes for owner-operators and small fleets, and tracks your biennial due date, as part of our DOT compliance services. If your record needs an update, contact SafeRoad Compliance.
Don’t Let Compliance
Slow Your Business Down.
Stay organized, keep required records current, and stay ahead of important DOT compliance requirements with professional support.
FAQs
File an updated MCS-150 within 30 days of the change.
Yes. The biennial update is required every 24 months even when your information is the same.
Not if the company remains the same legal entity. You update the name on your record. A change in legal entity or ownership can require a new USDOT number.
Updating the USDOT record is free. Changing the name on operating authority costs $14 with Form MCSA-5889.
Through Motus, FMCSA’s registration system since May 2026. Paper forms are no longer accepted.
Missing the biennial update can lead to deactivation of your USDOT number and civil penalties of up to $1,000 per day, up to $10,000.
