USDOT, Operating Authority & Docket Numbers After FMCSA Motus

By MoveQuote Check Editorial Team · Last reviewed: August 11, 2026

A USDOT number identifies an entity in FMCSA systems. Operating authority is the permission recorded for a particular activity, and MC, MX, or FF values are docket identifiers associated with authority registrations. After Motus launched in 2026, the safest check is the current authority record—not the presence of one particular prefix.

In this guide
  1. What a USDOT number is
  2. What operating authority is
  3. What docket identifiers are
  4. What changed with FMCSA Motus in 2026
  5. USDOT, authority, and docket identifiers at a glance
  6. Why a company may have one number or both
  7. Where to find the numbers on your estimate
  8. How to verify the numbers
  9. If the name and numbers do not match
  10. A fictional example
  11. Questions to ask your mover
  12. Check the numbers on your quote
  13. Sources

What a USDOT number is

A USDOT number identifies an entity in FMCSA's registration and safety systems. FMCSA uses it to collect and track the entity's registration, safety, and compliance information. Interstate household-goods carriers need one, and a USDOT identifier alone does not establish which operating authority is active.

What operating authority is

Operating authority records whether an entity may act in a regulated role such as household-goods carrier, broker, or freight forwarder. Authority has its own type and status. A USDOT identifier alone does not prove that a specific authority is active.

Already have a written estimate?

Upload it for an independent review of the pricing terms, company information, and conditions that may change the cost — with evidence-backed questions to confirm before you pay.

What docket identifiers are

An MC number is a docket identifier associated with an FMCSA operating-authority registration. The current authority record—not the number alone—shows the role and authority status. You may also see FF for freight forwarders and MX for certain Mexico-domiciled entities.

What changed with FMCSA Motus in 2026

FMCSA launched Motus for new registration applications in May 2026. Motus gives newly registering entities a USDOT number and assigns a distinct docket number to each new authority granted, using the applicable MC, MX, or FF prefix. Existing USDOT and docket numbers did not change solely because of the launch.

FMCSA has said a future move away from docket numbers remains under consideration and would require a separate rulemaking. Do not assume an older MC number is invalid, or that every newly issued record has no docket number. Verify the current record and authority status in FMCSA's system.

USDOT, authority, and docket identifiers at a glance

USDOT numberOperating authorityDocket identifier
What it identifiesThe company in DOT safety and registration systemsA regulated role and its current statusA docket associated with an authority registration
Who typically has oneInterstate carriers (and brokers register with USDOT too)Carriers, brokers, and freight forwarders subject to authority requirementsEntities with an authority application or registration
A company may haveOnly a USDOT (e.g., a private or intrastate-only operator)Multiple authority records with different types or statusesMultiple dockets (e.g., carrier and broker applications)
Related prefixesUSDOTAuthority type is shown in the current FMCSA recordMC, FF, or MX

Why a company may have one number or both

Records and documents vary by role, registration history, and application. A carrier, broker, or freight forwarder may have a USDOT number and one or more docket identifiers. Under Motus, each new authority application currently receives its own docket number. The authoritative question is what active role and authority the current FMCSA record shows—not whether a document displays a particular pair of prefixes.

The identifiers on an estimate help you locate the official record; the current operating-authority record tells you the company's authorized role. See Moving Broker vs. Carrier.

Where to find the numbers on your estimate

Look in the header or footer of the written estimate, near the company's legal name and address, or in the terms section. They usually appear as "USDOT 1234567" and "MC 123456." If you cannot find them, ask the company to point them out in writing.

How to verify the numbers

Enter the USDOT identifier, docket identifier, or company name from your estimate into our FMCSA Mover Check tool. You will see the official record behind the number: legal name, DBA, authority type and status, household-goods authority, and insurance filing fields. We explain exactly what each field means on our data sources page.

If the name and numbers do not match

Sometimes the company name on the estimate differs from the name in the official record — a DBA, a recently renamed business, a parent company, or a typo. A mismatch is something to clarify in writing, not an automatic verdict. Ask the company to confirm which legal entity will perform or arrange your move, and make sure that entity's numbers are the ones on your documents.

Two cautions in the other direction: finding a valid record does not mean the government recommends or endorses the company, and not finding a record does not by itself prove fraud — check the number for typos and search by name before drawing conclusions.

A fictional example

Priya's estimate (fictional) shows "Everline Logistics, USDOT 3XXXXXX" but no MC number. The official record for that USDOT shows an active carrier with household goods authority under an MC docket — the estimate simply left the MC off. A different quote from "QuickNest Moving" (fictional) shows a USDOT whose record lists broker authority only, meaning another company would perform the actual move. Both findings are neutral facts; each tells Priya what to ask next.

Questions to ask your mover

  • What are your current USDOT and applicable docket identifiers, and can you add them to the written estimate?
  • Which carrier, broker, or freight-forwarder authority is currently active?
  • Is the legal name in your FMCSA record the same entity I am paying?
  • If a different company name appears on moving day, how does it relate to you?

Check the numbers on your quote

MoveQuote Check cross-references the identifiers on your estimate with official records as part of every report — see a sample report or check your quote for $9.90.

Sources

This guide is educational information, not legal advice. FMCSA records describe registration, authority, and insurance filing fields — they do not guarantee service quality, and the absence of a record does not by itself prove fraud. Rules can change; always confirm details with the official sources linked above. Questions: support@mail.movequotecheck.com.

Already have a written estimate?

Upload it for an independent review of the pricing terms, company information, and conditions that may change the cost — with evidence-backed questions to confirm before you pay.

Related guides