Getting a USDOT number is free, and since May 14, 2026 it happens in one place: FMCSA's Motus registration system at motus.dot.gov. The number itself is the easy part. What slows first-time applicants down is everything around it — the Login.gov identity check, the company-account setup, and a handful of MCS-150 questions that are easy to answer wrong and expensive to leave wrong. This guide walks the application in the order Motus asks for it, and flags where a wrong answer puts you in the wrong regulatory lane.
If you already have the number and want to know what comes next, skip to the first-year filings checklist. This page is about the application itself.
Do You Actually Need a USDOT Number?
Under FMCSA's published test and the definitions in 49 CFR §390.5T, you need one if you operate a vehicle that meets any of these:
- Weight — a gross vehicle weight rating, gross combination weight rating, or actual weight of 10,001 pounds or more, whichever is greater. A one-ton pickup pulling a loaded gooseneck usually crosses this line.
- Passengers — designed or used to carry more than 8 passengers including the driver for compensation, or more than 15 including the driver whether or not anyone pays.
- Hazmat — hazardous materials in a quantity that requires placarding.
andthe vehicle is used in interstate commerce — freight or passengers moving between states, through another state, or as part of a movement that started or will end in another state or country. The MCS-150 instructions put it plainly: if the origin and destination on the bill of lading are not in the same state, the shipment is interstate, even if your truck never crosses the line. Intrastate hazmat that requires a safety permit also needs a USDOT number.
Never leave your state? Federal law does not require the number — but 38 states and Puerto Rico do, under their own intrastate registration rules. That list and how it works is in our intrastate USDOT guide. If you are still unsure which registrations apply, Motus has a “What Type of Registration Do I Need?” wizard on its front page that asks a short set of questions before you create anything.
What to Have Ready Before You Sign In
The application is faster than the preparation. Gather these first:
- A Login.gov account and the documents to verify your identity — a U.S. driver's license, state ID, or passport; your Social Security number; and a U.S. phone number. Login.gov photographs the ID and sometimes asks for a selfie. If the phone check fails, it can mail a code instead, which takes 5–10 business days and expires after 21 days.
- An EIN. Sole proprietors may use a Social Security number, but the MCS-150 instructions say FMCSA encourages an EIN — and note that a sole proprietor's registration contact details are published on FMCSA websites, so keep the SSN off the record.
- The exact legal name as it appears on your formation documents, plus any DBA. Corporations and LLCs must include the entity suffix. Only the legal name or a single trade name may appear (§390.19T(f)).
- A principal place of business — the physical address where the company operates and keeps safety records. A P.O. box is not acceptable, and neither is the address of a consultant, service agent, or attorney unless you actually operate from there. Mailing address can be a P.O. box.
- Names and titles of company officials — the sole proprietor, two partners, or two corporate officers, one of whom will sign the certification.
- Fleet counts by vehicle type (straight trucks, truck tractors, trailers, hazmat cargo tanks, passenger vehicles by capacity), each split into owned, term-leased, and trip-leased.
- Driver counts — interstate versus intrastate, within versus beyond a 100 air-mile radius of the reporting location, and how many hold a CDL.
- Mileage. A brand-new company enters miles operated to date, or zero if it has not run yet. See what the mileage line wants before the first biennial update, when it starts to matter.
How the Motus Application Works, Step by Step
FMCSA describes the flow in three steps, and it is worth respecting the order — each step gates the next.
- Create a user profile. Sign in at motus.dot.gov with Login.gov and complete identity verification. The profile belongs to a person, not the company; one person can later be attached to several company accounts.
- Create a company account. Enter the business information and complete business verification. FMCSA reviews the principal place of business here — an address that could never satisfy the records-at-PPOB rule is grounds to reject the application.
- Register. Choose a USDOT number and, if you need it, operating authority in the same session. New registrations in Motus follow the same question order as the USDOT Wizard, so nothing should surprise you.
- Certify and submit. A company official signs the certification under penalty of perjury that the report is true, correct, and complete. FMCSA emails copies of its most-requested letters to the company account owner, so watch the inbox you registered.
- Read the number carefully. Motus randomizes newly issued USDOT numbers rather than assigning them in sequence, and shows a suffix in your account (C for property authority, V for private carrier, B for broker, R for intrastate, and so on). The suffix is an identifier inside FMCSA systems, not part of the marking you paint on the truck.
Two honest notes. First, a transportation service provider cannot start this for you: FMCSA requires new registrants to begin the application and complete identity and business verification themselves before designating a provider, and the company official still reviews the provider's entries and submits the final oaths. Second, paper is not gone — FMCSA still accepts the mailed MCS-150 — but the agency's own instructions put mailed applications at four to six weeks on average, against minutes online.
The MCS-150 Questions That Trip First-Time Applicants
The application is the MCS-150 in web form. These are the items we see answered wrong most often, and what wrong costs you.
- Company operations (interstate or intrastate). “Interstate Carrier” means any part of your operation moves freight or passengers that cross state lines at some point in their journey. Checking intrastate because your truck stays home, when the freight does not, leaves you without the authority, insurance minimums, and UCR registration an interstate carrier needs.
- Operation classification. “Authorized For-Hire,” “Exempt For-Hire,” “Private Property,” and the passenger boxes decide whether you also need MC authority. Every box is defined in our classification guide; the short version is that anyone paid to haul regulated freight for others is “Authorized For-Hire” and owes an authority application too.
- Cargo classifications and hazmat. Check what you actually haul. The list is published on SAFER, brokers vet against it, and the hazmat table pulls you into hazmat inspections and possibly PHMSA registration.
- Fleet counts. Trailers are their own column, not power units. Owned means you hold title; term-leased is a lease for a period; trip-leased is per trip. Vehicles run by owner-operators leased to you count under your number.
- Driver counts. Total drivers must equal interstate plus intrastate, and CDL drivers cannot exceed the total. The 100 air-mile split is about where the driver reports for work, not where the freight goes.
- Principal place of business. Using a registered-agent or accountant's address is the classic rejection, and a stale address later breaks mail-based verification.
Do You Also Need MC Operating Authority?
The USDOT number is a safety identifier. Operating authority is the separate permission to sell transportation across state lines. You need authority if you are paid to haul freight or passengers FMCSA economically regulates in interstate commerce. You do not need it if you haul only your own goods (private carrier), only exempt commodities such as most unprocessed agricultural products, or only inside your state.
| Registration | Who Needs It | FMCSA Fee | Keeping It Current |
|---|---|---|---|
| USDOT number | Every carrier operating a CMV in interstate commerce, intrastate safety-permit hazmat carriers, and intrastate carriers in states that require it. | $0 | MCS-150 update every 24 months and within 30 days of any change; free. |
| MC / FF / MX operating authority | For-hire carriers of non-exempt freight or passengers in interstate commerce, brokers, and freight forwarders. | $300 per authority type (49 CFR §360.3T) | Insurance filing and BOC-3 process agent on file; $80 to reinstate if revoked. |
The authority side has its own steps — the OP-1 application, the insurance filing your underwriter submits, and the BOC-3 process-agent designation — and our sister site covers them: do you need operating authority at FastTruckAuthority. Apply for the authority in the same Motus session as the USDOT number if you know you need it; a for-hire classification with no authority behind it shows up on SAFER as NOT AUTHORIZED.
What Happens After the Number Is Issued
- Marking. Under 49 CFR §390.21T the legal name (or single trade name) you filed and the number, preceded by “USDOT,” go on both sides of every self-propelled CMV, in contrasting letters legible from 50 feet in daylight. Get the name right on the application; the truck has to match it.
- New entrant monitoring. Under 49 CFR §385.307 you are in the New Entrant program for 18 months, with a safety audit generally after at least 3 months of operations. Driver files, drug-and-alcohol program, hours-of-service records, and maintenance files need to exist from day one.
- The 30-day rule. Any change to what you filed — address, fleet, drivers, operation type — must be updated within 30 days. It is free in Motus.
- The biennial update. Your first MCS-150 due month is fixed by the last two digits of the number the day it is issued. Skipping it deactivates the number under §390.19T(b)(4).
- Everything else in year one — UCR, IRS Form 2290, insurance, the audit — is in the first-year checklist.
FastMCS150 works on the update side of that record — the biennial updates and change filings that follow once the number exists — at $150 per filing or $350 once for lifetime updates, plus $25 only if you need Login.gov or PIN help. The application itself is one Motus makes you open yourself, and it is free. The answers you give this week are the ones brokers, insurers, and auditors will read for the next two years.