USDOT Number Renewal: The Biennial Update Explained

Most people searching for USDOT number renewal are really asking about the biennial update. A USDOT number does not renew like a driver's license. The number stays with the business, but every two years the carrier has to file an update of its registration information with FMCSA. If that update is missed, the rule allows penalties and deactivation of the number, so set a reminder the day you get your number.

> FMCSA status as of September 2026: FMCSA has temporarily suspended enforcement of biennial updates and of the inactivation of USDOT numbers. Registrants whose biennial update was due on or after June 1, 2026 get extra time. The rule text below is the regulation in force (49 CFR 390.19T), but timing and enforcement can change. Check the FMCSA temporary suspension page again before you rely on any deadline.

USDOT number renewal: what the biennial update asks for

The federal rule says each motor carrier must file its identification report, Form MCS-150, before it begins operations and then every 24 months (49 CFR 390.19T). Two details of your own number decide when yours falls due.

• The month comes from the last digit of your USDOT number. 1 is January, 2 is February, and so on through 9 for September. A 0 means October.
• The year comes from the next-to-last digit. An odd digit means odd-numbered calendar years. An even digit means even-numbered years.

Take a made-up number such as 1234567. It ends in 7, which is July, and its next-to-last digit is 6, which is even. Under the rule, that update falls in July of even-numbered years. Work out your own number the same way and write the month down where you will see it. The update applies to carriers that are covered by the registration rules, so if you are unsure your vehicle counts, read who needs a USDOT number first.

Filing the update in Motus

FMCSA retired its older registration tools in May 2026 and moved registration to Motus (FMCSA FAQs). Type motus.dot.gov into your browser yourself rather than following an ad or an email link. FMCSA's Motus explainer describes the new system. If you do not have a number yet, start with our how to get a USDOT number guide instead.

Look at your record before you file. FMCSA's Company Snapshot is free to search by USDOT number, MC number or company name. Motus public search can also find a record by USDOT number, legal name or DBA (FMCSA). Compare what it lists with your business name, the trade name you actually use, and the lettering on your truck.

Then sign in to your company account in Motus and update the registration information. FMCSA's notice on the new system describes the user profile and identity verification steps that come first (Federal Register notice). Keep a copy of whatever confirmation Motus gives you.

Keep the door matched to the record

The door has to follow the record. The marking rule asks for the name "as listed on" Form MCS-150 (49 CFR 390.21), and FMCSA's summary says the name on the vehicle must match the registration (FMCSA highlights). The update is a good moment to confirm that the name on your record is exactly the name you letter on the truck.

The marking rule asks only for the name and the USDOT number. Other details on the record are not part of the marking, but the name must still be right. If your legal name or trade name has changed, do not reletter the door first. Get the record right, then order decals that match it. We could not confirm the current Motus steps for a name change, so check FMCSA's site before you start. Our company name on truck requirements guide covers which name to choose.

Before you order new decals

1. Look up your record and copy the name exactly as it is listed.
2. File the update if one is due, and keep the confirmation.
3. Order decals only once the door will match the record.

If the name and number are right, the Custom USDOT Logo carries your name, city, USDOT and MC lines on one decal. If you only need the number on the door, the USDOT decal is the simpler choice, and the Company Name + USDOT decal pairs your name with the number. For the marking rules themselves, see our USDOT number display rules.