If you operate under a U.S. DOT number, staying compliant with the Federal Motor Carrier Safety Administration (FMCSA) is not optional — it’s the law. One of the most overlooked yet critical requirements is the DOT Biennial Update, filed using Form MCS-150.
At U.S. Carrier Registration, we help carriers nationwide meet every federal and state compliance need — fast, correctly, and without the guesswork. Here’s what every operator should know about biennial updates, including real-world examples.

What Is the DOT Biennial Update?
The DOT Biennial Update is a federal requirement that applies to every company or individual with an active U.S. DOT number. Whether you’re a motor carrier, broker, or freight forwarder, you’re required to update your company information every two years by filing Form MCS-150 with the FMCSA.
Key Point:
⦁ Even if nothing changes, you still must file every 24 months.
When Do You File?
Your required filing month depends on the last two digits of your DOT number:
⦁ Second-to-last digit = Odd/Even year
⦁ Last digit = Month
📌 Example 1: DOT Number: 1234567
⦁ Last digit: 7 → File in July
⦁ Second-to-last digit: 6 → File in Even-numbered years
✅ Next Due: July 2024
📌 Example 2: DOT Number: 9876543
⦁ Last digit: 3 → File in March
⦁ Second-to-last digit: 4 → File in Even-numbered years
✅ Next Due: March 2024
Why It Matters
Failing to file your biennial update can lead to:
⦁ Deactivation of your USDOT number
⦁ Hefty fines — up to $10,000
⦁ Delays in UCR registration
⦁ Insurance or DOT audit issues
Don’t risk your authority or your business — this is a required filing for all carriers.

What Info Is Needed for the Update?
To file your MCS-150 correctly, you’ll need:
⦁ Your USDOT number
⦁ Legal business name
⦁ Number of vehicles and drivers
⦁ Miles driven annually
⦁ Operating classification (e.g., interstate/intrastate)
⦁ Cargo classification
⦁ Company address and contact info
Even if your details haven’t changed, FMCSA still expects a valid update every two years.
How U.S. Carrier Registration Helps
At U.S. Carrier Registration, we take the stress out of federal compliance. Our team ensures your biennial update, UCR registration, BOC-3 filing, and other key filings are handled quickly, correctly, and on time.
✅ No paperwork hassles
✅ Fast turnaround
✅ Compliance with FMCSA standards
✅ Friendly support via phone and email
Contact Us to File Today
Need to file your DOT biennial update? We’ve got you covered.
📞 877-544-4387
📧 [email protected]
🌐 https://ucrplans.us
Whether your update is due now or coming up soon — we’ll take care of it.
Many carriers overlook the DOT biennial update, not realizing the severe penalties for non-compliance. At U.S. Carrier Registration, we help you stay on top of your filings, so your operations continue smoothly — and legally.