To reactivate your USDOT number, you must submit complete and submit the appropriate MCS-150 series form, as applicable to your company. Please note that FMCSA strongly recommends using forms directly from our website as other online places may include expired forms by mistake. FMCSA does not accept expired versions of the MCS-150, MCS-150B and MCS-150C forms. 

If you are reactivating your USDOT Number after a New Entrant revocation, click here as there are separate instructions to follow.

If you also need to reinstate your operating authority, click here for separate instructions. 

To verify your current USDOT number status, visit our SAFER Company Snapshot web page. 

If you have questions about your USDOT status, please contact us by phone, email or chat. We can also walk you through the process on your computer using our co-browse functionality.

You may change the company address or phone number of your operating authority (MC number) record, by submitting your request following any of the options below:

• Online: Request reinstatement online via your FMCSA Portal account (Don't have an FMCSA Portal Account to Make Online Changes?)
• Paper: Send your completed and signed MCSA-5889 Form to us by submitting a ticket via our ASK website (scroll to the bottom of the page, complete the required fields, and upload your document). You will receive a confirmation number by email. Alternatively, you may fax a completed and signed MCSA-5889 Form to 202-366-3477. Paper submissions may take up 8 days for review and processing. 

Your completed form must contain:

• The MC number
• The name of the company
• The former and current addresses and telephone numbers
• Signature of the applicant or applicant's representative

To check the status of your operating authority registration (MC/FF/MX number) or application, follow these steps:

1. Visit the FMCSA Licensing and Insurance website.
2. Enter your MC Number or USDOT Number in the appropriate field.
3. Complete the CAPTCHA verification by checking the box next to “I’m not a robot.”
4. Click Search.
5. On the Carrier Search results page, click the "HTML" link under the “View Details” column.
6. Review the “Authority Status” column to confirm the current registration status.
7. To check the status of a pending application, click the “Application Pending” link at the bottom of the page.
8. For a record of historical application activity, click on the “Authority History” link at the bottom of the page.

Additional Notes:

• Operating authority documents are typically received via mail within 3–4 business days.
• You may also obtain an immediate electronic copy of your certificate, permit, or license by visiting the FMCSA Daily Registration Decisions page.
• For further assistance, contact FMCSA at 800-832-5660, Monday–Friday, 8:00 a.m. to 8:00 p.m. ET, or submit an inquiry through the Ask FMCSA page.

To check the status of a USDOT number, click here.

The FMCSA's policy is to assign a unique USDOT identification number to each person required to identify themself with FMCSA under 49 U.S.C. 13902, 31134 and 49 C.F.R. 390.19T or 390.200T.  USDOT numbers are not transferable and are assigned to only one person and remain assigned to that person forever.  A person includes an individual, corporation, partnership, or other business organization as authorized by state law.  Each separate and distinct person must have separate registration.

For corporations, partnerships and other business organizations, the USDOT number will remain the same when there is a change in company officials, address or other demographic information, and the corporation, partnership, or other business organization will continue operations as the same legal person/entity. In case of a change in demographic information, the motor carrier is required to file an updated Form MCS-150, Motor Carrier Identification Report, within 30 days of the change. 

We will allow a sole proprietor to maintain its USDOT number when it changes its current form of business, and the new entity will continue to operate virtually the same (absent the form of business change) as before the change.  There would be no change in company officials, address, or other demographic information and the new entity will maintain identical operations, employees and assets.  We will permit a change in the Tax ID number based on the new articles of incorporation.

It is important to note that the regulation has not changed.  The Office of Registration and Safety Information is often asked whether a new USDOT number is or is not required following motor carrier ownership, form of business, or operational changes.  The office recently provided clarification and direction for what must be done when these situations arise.

If you perform trade, traffic, or transportation exclusively in your business’s domicile state, this is considered intrastate commerce.

If your trade, traffic, or transportation is one of the following, this is considered interstate commerce. Source: 49 CFR 390.5.:

• Between a place in a state and a place outside of such state (including a place outside of the United States)
• Between two places in a state through another state or a place outside of the United States
• Between two places in a state as part of trade, traffic, or transportation originating or terminating outside the state or the United States

You can determine the status of your USDOT number in these ways:

• Online: Go to the SAFER website and search by name, USDOT number or MC number
• Submit a ticket: Visit our website at: ask.fmcsa.dot.gov. Scroll to the bottom of the page and complete the required fields (and upload any documents, if applicable). You will receive a tracking number;
• Chat: Initiate a live chat with FMCSA Customer Service
• Phone: Call 800-832-5660 to speak to FMCSA Customer Service

To reinstate your operating authority (MC, FF, or MX Docket Number), you will be required to:

• Comply to with the minimum financial responsibility requirements and Designation of Process Agent (BOC-3 Form) on file with FMCSA. Please see our Insurance Requirements website for more information; and
• Motor Carriers Only: Have an active USDOT Number with up-to-date contact information on file. Our systems will not allow users to request reinstatement if the USDOT Number is Inactive or Out of Service. You may submit an MCS-150 Form along with your reinstatement request to update your information.

The cost to request a reinstatement is $80.00. Authority is typically active within a week of application receipt and valid payment. FMCSA will notify you if your application is on hold, pending additional information or in vetting under review.

Please note: You cannot request reinstatement if you have been placed Out of Service for being an "imminent hazard" or due to a final unsatisfactory safety rating ("UNSAT/UNFIT). 

You may submit your operating authority reinstatement request following any of the options below:

• Online: Request reinstatement online via your FMCSA Portal account (Don't have an FMCSA Portal Account to Make Online Changes?)
• Paper: Send your completed and signed MCSA-5889 Form to us by submitting a ticket via our ASK website (scroll to the bottom of the page, complete the required fields, and upload your document). You will receive a confirmation number by email. Alternatively, you may fax a completed and signed MCSA-5889 Form to 202-366-3477. Paper submissions may take up 8 days for review and processing. 

In general, companies that do the following are required to have interstate operating authority (MC number) in addition to a DOT number:

• Operating as for-hire carriers (for a fee or other compensation)
• Transporting passengers, or arranging for their transport, in interstate commerce
• Transporting federally regulated commodities or arranging for their transport, in interstate commerce

As of December 12, 2015, all entities applying through the Unified Registration System will obtain a USDOT number.

Operating Authority means the registration required by 49 U.S.C. 13902, 49 CFR part 365, 49 CFR part 368, and 49 CFR 392.9a.

FMCSA operating authority is also referred to as an "MC," "FF," or "MX" number, depending on the type of authority that is granted. Unlike the USDOT Number application process, a company may need to obtain multiple operating authorities to support its planned business operations. Operating Authority dictates the type of operation a company may run and the cargo it may carry. Mexico-domiciled carriers may click here for information on registering with FMCSA.

New Applicants must register online via the Unified Registration System. They will be issued a USDOT number and an MC/MX/FF number. Existing entities that already have a USDOT number and/or MC/MX/FF number must apply via the OP-1 series forms, or online (click here), providing their existing USDOT number (and MC/MX/FF numbers, if they are applying for an additional authority.)

All of this also dictates the level of insurance/financial responsibilities a company must maintain. Carriers not required to have operating authority include:

• Private carriers (carriers that transport their own cargo)
• "For-hire" carriers that exclusively haul exempt commodities (cargo that is not federally regulated
• Carriers that operate exclusively within a federally designated "commercial zone" that is exempt from interstate authority rules. A commercial zone is, for example, a geographic territory that includes multiple states bordering on a major metropolitan city, such as Virginia/Maryland/Washington, DC

More information on motor carrier insurance requirements can be found on our web site.

If you would like to suspend operations, you can request voluntary revocation of operating authority (OA) registration by following the steps below:

Step 1: Verify your current Operating Authority registration status.

Step 2: Fill out Form OCE-46

Complete Form OCE-46 to request Voluntary Revocation of your authority (MC/MX/FF). 

The form must be notarized or signed in the presence of a FMCSA staff member.

Step 3: Fill out Form MCS-150 or MCS-150B to: (A) Inactivate or (B) Update USDOT registration

 A) To inactivate your USDOT number, follow these steps:

1. Complete either an updated MCS-150 or MCS-150B form (for Hazmat Carriers).
2. In the "reason for filing" section of the form, check the box labeled "Out of Business Notification." This applies even if your company remains in operation for other purposes.
3. Ensure that you complete items 1-16 and 30-31 on the form.
4. Include a copy of a Driver's License from the individual who signed either #31 on the MCS-150 or #37 on the MCS-150B certification statement (as an attachment).

B) To update your USDOT (to continue operations that do not require Operating Authority):

1. Update ONLINE via your FMCSA Portal account. Don't have an FMCSA Portal Account to Make Online Changes? ; or
2. Complete and submit either an updated MCS-150 or MCS-150B form (for Hazmat Carriers).
   1. In the "reason for filing" section of the form, check the box labeled "Biennial Update or Changes."
   2. Ensure that you complete all applicable items 1-16, 21, 30-31 and any others where information has changed since the last update.
   3. Include a copy of a Driver's License from the individual who signed either #31 on the MCS-150 or #37 on the MCS-150B certification statement (as an attachment).

Step 4: Submit Your Form(s)

You can submit the completed and signed forms using one of the following options (expect up to 8 days for review and processing):

• Submit a ticket. This is the quickest option, and you will receive a confirmation number via email.
• Fax the completed forms to 202-366-3477.
• Mail to:
  
  Federal Motor Carrier Safety Administration
  Office of Registration (MC-RS)
  1200 New Jersey Avenue, SE, Room W65-206
  Washington, D.C. 20590

In general, a USDOT Number is required if you are operating in interstate commerce and meet the following criteria:

• You have vehicles that are over 10,000 lbs. (GVWR, GCWR, GVW or GCW)
• You transport between 9 and 15 passengers (including the driver) for compensation, whether direct or indirect
• You transport 16 or more passengers
• You haul hazardous materials

Click here for a step-by-step tool that helps you determine whether you need a USDOT or MC number. There is no charge to get a USDOT number. For more information on how to get a USDOT number, please see the FAQ "How do I get a US DOT number?" For some definitions of FMCSA terms, click here.

If you would like information on getting operating authority as a for-hire carrier (MC/MX/FF numbers), click here.

If you are an existing company changing your form of business, click here. 

The compliance date for this requirement (49 CFR 390.19) occurred November 1, 2013.

Filing schedule: Each motor carrier or intermodal equipment provider must file the appropriate form at the following times:

• Before it begins operations
• Whenever there is a change in information (address, telephone number, email, # power units, etc.)
• Every 24 months, according to the following schedule:

If the next-to-last digit of its USDOT Number is odd, the motor carrier or intermodal equipment provider shall file its update in every odd-numbered calendar year. If the next-to-last digit of the USDOT Number is even, the motor carrier or intermodal equipment provider shall file its update in every even-numbered calendar year.

FMCSA also requires you to update your registration information within 30 days of any change.  FMCSA considers updates completed by a motor carrier, Intermodal Equipment Provider (IEP), or Hazardous Materials Safety Permit (HMSP) holder if changes are reported within 12 months prior to the biennial update due date.  In which case the entity will not receive a Biennial Update Reminder until the next biennial update due date. 

To find out the current status of your USDOT number, click here to search by name or number at the SAFER Company Snapshot.