MCS-150 update for carrier name changes
You changed your LLC name, DBA, or operating-authority entity. FMCSA requires an MCS-150 update reflecting the new legal name within 30 days of the change under 49 CFR §390.19(b)(2). We file the update same-business-day for $100 flat, with SAFER reflecting the new name typically within 24-48 hours.
Why FMCSA needs the update
The MCS-150 is the single source of truth for carrier identity in the FMCSA database. Roadside inspectors, shippers, brokers, and state DOTs all pull SAFER records that depend on MCS-150-reported data. A name mismatch between the carrier's actual legal name and the SAFER name creates compliance friction — brokers may reject the carrier on identity verification, state DMVs may reject the IRP application, and roadside inspectors may flag the carrier for paperwork mismatch.
The 49 CFR §390.19 30-day window is the regulatory requirement. Filing inside the window keeps the carrier in good standing; filing late doesn't carry an FMCSA fee penalty but does leave a compliance gap that an auditor can write up. See our how-to-file walkthrough and the online-update FAQ for the substantive process.
Companion filings to update
- BOC-3 — refile to match the new legal name ($75 at FastBOC3)
- BMC-91 insurance — your insurer files an updated BMC-91 reflecting the new name
- UCR registration — update the carrier name with UCR for the current year
- State IRP / IFTA — your home state DMV needs the new name on the apportioned plate registration
- Operating authority docs — a fresh authority letter from FMCSA reflecting the new name
What's included
- Form MCS-150 prepared with new legal name and supporting carrier-info updates
- Same-business-day FMCSA submission
- SAFER monitoring through processing
- Confirmation when SAFER reflects new name
How fast
FMCSA submission same business day; SAFER reflection typically 24-48 hours.
Name-change questions
When do I have to file MCS-150 after a name change?
Within 30 days of the legal-name change taking effect, under 49 CFR §390.19(b)(2). The same regulation requires an MCS-150 update for any change in carrier identity — name, principal place of business, ownership structure, USDOT contact, or class of operation. The 30-day window is from the effective date of the change, not from the date the change is recorded with the state.
Does my BOC-3 also need to be refiled when I change names?
Yes. The BOC-3 is keyed to the carrier's legal name on file with FMCSA. When the name on the MCS-150 changes, the BOC-3 also needs to reflect the new name — file a fresh BOC-3 ($75 one-time at FastBOC3) so the process-agent designation matches the new entity name. Without the matching BOC-3, FMCSA may flag the carrier as out of compliance.
Will my MC number change with the name update?
No. The MC number stays the same. FMCSA treats a name change as an update to existing registration — not a new application. The MC, USDOT, and operating authority all carry forward under the new name. Only EIN-changing events (full ownership change, sale of assets to new entity) trigger a new MC application.
Other MCS-150 contexts
You might also need
- BOC-3 update — FastBOC3Filing
- UCR update — FastUCRFiling