Heavy Duty Trucking Logo
MenuMENU
SearchSEARCH

What You May Not Know About the MCS-150

If a motor carrier does not keep on top of the biennial updates of its Motor Carrier Identification Report (MCS-150), it could face deactivation of its USDOT number and daily fines.

July 13, 2021
What You May Not Know About the MCS-150

If a motor carrier does not keep on top of the biennial updates of its Motor Carrier Identification Report (MCS-150), it could face deactivation of its USDOT number and daily fines.

Graphic: HDT

3 min to read


Every other year, motor carriers must complete an updated Motor Carrier Identification Report, referred to as the MCS-150. But it can cause headaches, especially for small carriers, including independent owner-operators with their own operating authority.

If an MCS-150 form falls out of date, the Federal Motor Carrier Safety Administration could deactivate the carriers’ USDOT number, and the company could face penalties of up to $1,000 per day, not to exceed $10,000. 

While there are third-party companies that will take on the responsibility of submitting the form for a carrier, if there are no major changes to an operation, keeping the MCS-150 up to date can be as simple as updating annual mileage.

The form includes information on the carrier, including the number of miles traveled the previous year, the commodities hauled, insurance information and more. To submit the update, carriers will need their USDOT number and a USDOT pin, so have it handy or plan to wait up to a week for authorities to send it by mail after it’s requested.

The number one reason motor carriers fall into noncompliance with the MCS-150 registration is failing to complete the mandatory biennial update, says FMCSA spokesman Duane DeBruyne. The second most common reason is a lapse in providing proof of the federally required minimum level of insurance.  

To remain in compliance, carriers should implement a good system of reminders. It’s also important to remember that even though the form should be updated every other year, it also needs to be updated if there are any changes to how your company operates.

In addition, providing fraudulent or false information on the report is considered an acute violation. 

Ad Loading...

When do I need to file my MCS-150?

The tricky part can be figuring out when to update the form. The deadline for when a carrier must submit an updated MCS-150 form is based on the last two digits of its USDOT number. The last digit in the USDOT number indicates what month a carrier should update their form (see chart). The next-to-last digit of the USDOT number indicates which year they must update the form (either every even year, or every odd year).

In order to find out the deadline for your MCS-150 biennial update, take a look at the last two digits of your USDOT number. The last digit indicates which month you must file in, and the next-to-last digit indicates whether you must file the form every even or every odd year. 

Source: FMCSA



For example, let’s say a USDOT number ends in 34. The three (being an odd number) would indicate that the form is due every odd year. And the four would indicate that the carrier is due in the month of April. So, if your USDOT number ends in 34, you should have filed your MCS-150 form in April 2021.

Although carriers are required to update their MCS-150 every other year, they may want to update it sooner. According to DeBruyne, it is recommended that companies update their information whenever there are changes to the company’s record.

One reason to update it more frequently if operations change is that the information on the MCS-150, such as the number of power units and annualized vehicle miles traveled, are used in the Safety Measurement System in calculating a carrier’s safety performance under the CSA (Compliance, Safety, Accountability) program. 

Ad Loading...

Keeping it updated can improve scores, according to an FMCSA FAQ. An out-of-date MCS-150 form could hurt scores if it’s underreporting the number of power units, if the number of tractor units vs. straight trucks is incorrect, or if the VMT is under- or over-reported.

“It is strongly recommended to update the company records as soon as there is a change,” DeBruyne recommends. “Also, file upon receipt of the Biennial Update letter.”

To fill out a MCS-150 form and to view instructions for submitting the form, visit fmcsa.dot.gov.

Did you know?

Before the Federal Motor Carrier Safety Administration was created in 2000, motor carriers only had to file an MCS-150 form once – when they began operations. 

At the time, it was the report that all motor carriers subject to federal safety regulations had to complete before they started operations in interstate commerce. FMCSA initiated an every-other-year update cycle to improve the quality of its database and its ability to target inspection and enforcement resources.

In 2015, the agency changed how carriers apply for new authority. First-time applicants had to start using the Unified Registration System (URS). This was part of a larger effort to raise the bar to entry into the business and help keep better track of “chameleon” carriers that evade enforcement by re-registering under a different identity.

MCS-150 today is only used to update information on carriers with existing operating authority.

Subscribe to Our Newsletter

More Safety & Compliance

Presentation slide showing ZF's North American market growth
Equipmentby Deborah LockridgeSeptember 10, 2026

ZF Expands Commercial Vehicle Push in North America

ZF is expanding its North American commercial-vehicle presence with new transmission applications, electrification, trailer technology and autonomous-driving systems.

Read More →
Illustration with driver behind the wheel, an alert sign, and a laptop
Driversby Lauren FletcherSeptember 9, 2026

Truck Drivers Need More Than Another Alert

Fleets have more visibility into truck health, safety events, and driver activity than ever. The next challenge is turning all that information into useful guidance for the person who has to decide what to do next.

Read More →
Tesla Semi electric truck with interior of Tesla Cybercab superimposed on top
Equipmentby Deborah LockridgeSeptember 8, 2026

Tesla Wants a Self-Driving Semi. Are Cameras Enough?

Could Tesla’s camera-only autonomous driving technology work on an 80,000-pound Semi? In this commentary, HDT's Deborah Lockridge takes a look at Tesla, Cybercab, and how autonomous trucks see the road.

Read More →
Ad Loading...
Collage of five autonomous trucks
Safety & Complianceby Deborah LockridgeSeptember 8, 2026

What DOT’s Automated Vehicle Strategy Means for Trucking

The U.S. Department of Transportation issued a new automated-vehicle strategy that outlines plans for driverless-truck regulations, cross-state freight corridors, and federal safety standards.

Read More →
Illustration of NYC skyline with speed limit sign and the major's order in the foreground
Safety & Complianceby News/Media ReleaseSeptember 4, 2026

NYC Expands Speed, Pedestrian Safety Tech Across Fleet

New York City is expanding intelligent speed assistance and pedestrian-alert systems across its municipal fleet, moving the technologies from pilot programs into vehicle procurement and retrofit requirements.

Read More →
Two men in jackets with Homeland Security indicated on the back, standing in a parking lot looking toward a building with trucks in front of it
Driversby Deborah LockridgeSeptember 1, 2026

FMCSA Removes 110 Truck Driver Training Schools from Certified ELDT List

Federal regulators also are targeting more than 160 additional training providers and launching a nationwide audit of third-party CDL skills testers as part of a broader crackdown on trucking fraud.

Read More →
Ad Loading...
Digital cover feature illustration showing truck inspector looking at trailer in background with the words "Compliance doesn't equal safety"
Safety & Complianceby Deborah LockridgeSeptember 1, 2026

Beyond DOT Compliance: What Makes a Trucking Fleet Truly Safe?

A trucking fleet can follow every rule and still make unsafe decisions. The real test comes when safety conflicts with freight, productivity, or cost.

Read More →
Illustration of tired truck driver, electronic logging device, and traffic congestion

Hours of Service Pilot Programs: FMCSA Readies for 2027 Rollout

Two pilot programs could eventually reshape hours-of-service rules, giving truck drivers options to pause their 14-hour clock or use longer split sleeper rest periods.

Read More →
Dog in a special pet restraint in the passenger seat of a truck cab, with a photo of pet guide superimposed

New Guide Offers Pet Safety Tips for Truck Drivers

Hundreds of thousands of pets travel in truck cabs. A new safety guide from Volvo Trucks and the Center for Pet Safety offers practical advice for truck drivers who bring dogs and cats along for the ride.

Read More →
Ad Loading...
Illustration with safety cones in background, Roadcheck logo, cargo tiedowns, and officer checking driver logs
Safety & Complianceby Deborah LockridgeAugust 26, 2026

Medical Cards, English Proficiency Reshape Roadcheck Violations

Medical-card violations jumped to the top of the driver out-of-service list during CVSA’s 2026 International Roadcheck, while English-language proficiency violations appeared among the leading violations for the first time.

Read More →