An MC Number is a license that allows your trucking business to legally transport cargo across state lines and get paid for doing so.
While it may add another layer of complexity, this identifier can significantly impact the ability to attract new clients or potentially deter them from doing so. Imagine being prepared to transport goods for a distributor, equipped with the necessary trucks, drivers, and insurance. However, upon the distributor's verification of the Motor Carrier (MC) Number, it was found to be inactive, resulting in the loss of the opportunity to secure the contract.
The MC Number is important in the trucking industry, particularly for interstate commerce. It is the official authorization from the Federal Motor Carrier Safety Administration (FMCSA), allowing operators to conduct for-hire freight transportation across state lines.
What You'll Learn in This Guide
Before you start hauling loads across state lines or bidding on freight contracts, you must know a few key things. In this guide, you’ll learn:
What an MC Number is, and how it’s different from a DOT Number
Who needs an MC Number
How to get one, including how much it costs, how long it takes, and what paperwork is required
Overview
What Is an MC Number?
An MC Number, also known as a Motor Carrier Number, is a unique identifier issued by the Federal Motor Carrier Safety Administration (FMCSA). It provides legal operating authority for businesses engaged in for-hire transportation of regulated commodities in interstate commerce. Without it, a trucking company cannot legally transport cargo across state lines for compensation.
While it may seem like an administrative formality, the MC Number is pivotal in legitimizing a motor carrier's operations. Consider a scenario where a business has trucks, drivers, and insurance but lacks an active MC Number. In such cases, clients may decline partnerships, and the company may face penalties or operational delays.
MC Number vs. USDOT Number: What’s the Difference?
The MC Number should not be confused with the USDOT Number. Both identifiers are issued by the FMCSA, but they serve distinct functions:
MC Number: Confers the right to engage in interstate operations involving the transport of regulated commodities for compensation.
USDOT Number: Tracks safety records and is required for all operators of commercial motor vehicles.
The DOT Number is a regulatory identification for your business, similar to a driver’s license. On the other hand, the MC Number is a specialized permit for for-hire transportation activities across state lines.
Who Needs an MC Number?
An MC Number is mandatory for the following entities:
For-hire motor carriers transporting regulated cargo across state lines
Freight brokers arrange transportation between carriers and shippers
Freight forwarders manage shipments on behalf of clients
However, an MC Number is not required for private carriers transporting their goods within a single state or hauling non-regulated commodities. In most cases, if you receive payment to transport goods belonging to another party across state lines, you need an MC Number.
How to Get an MC Number
Obtaining an MC Number isn’t difficult, but missing a step can delay the entire process. Here’s what you need to do:
Go to the FMCSA’s Unified Registration System (URS)
To obtain an MC Number, you must apply within the Unified Registration System (URS) and create an account for the registration process.
Pay the filing fee
The application fee for each type of authority is $300. Please note that this fee is non-refundable, regardless of the outcome of the application.
Submit your BOC-3 form
This form assigns a process agent who can receive legal documents on your behalf in each state you operate. Most carriers use a third party to handle this step.
Provide proof of insurance
Submit the appropriate insurance forms based on the nature of your cargo. Typically, your insurance provider will submit these documents directly to the FMCSA.
5. Wait for processing
Your number should become active within 20–25 business days if everything's in order. However, processing time may be extended if insurance forms or other paperwork are missing.
Pro Tip: Most carriers encounter issues when their insurance isn’t filed on time or the BOC-3 is overlooked. To avoid delays and incorrect applications, double-check everything before submitting.
How Much Does It Cost?
Starting with an MC Number comes with a few required expenses and a few optional ones, depending on the level of assistance you need.
Here’s what you’ll need to pay:
Filing Fee: The fee for the FMCSA is set at $300. Please note that this fee is non-refundable, regardless of whether the application is approved or rejected.
BOC-3 Form: Many providers incorporate this feature into their starter packages when utilizing a third-party service. The cost typically ranges from $20 to $40 if obtained separately.
Insurance Requirements: The cost of this insurance depends on what you’re hauling and the distance you travel. For example, hauling general freight typically requires carrying at least $750,000 in liability coverage, whereas hauling hazardous materials (hazmat) may require $5 million. Your premium depends on your driving history, routes, and the type of cargo you transport.
Note: You can expect to spend at least $300, but most new carriers pay more once you factor in insurance and help with the paperwork.
How to Check or Maintain Your MC Number
To sustain motor carrier authority, businesses must:
Monitor their MC Number status using the FMCSA website
Ensure ongoing insurance coverage
Update the BOC-3 form when the designated agent changes
Respond promptly to FMCSA compliance deadlines
Neglecting these responsibilities can result in the deactivation of the operating authority, disrupting business continuity.
Final Thought: Don’t Let Missing Paperwork Stall Your Trucking Business
An MC Number is a critical requirement for those engaged in interstate freight transportation and seeking to establish a sustainable business. Neglecting to obtain this number or failing to complete necessary filings can result in significant operational setbacks.
By understanding the importance of an MC Number, identifying the individuals and entities that require one, and maintaining its active status, you can proactively address potential issues and ensure the continued success of your business.
Also, check out these helpful guides:
Need to Ship a Car?
AmeriFreight Car Shipping offers reliable auto transport services nationwide. We are a highly rated company that offers our clients a range of transportation options.
Get your free instant quote now and let us deliver your car.
Frequently Asked Questions (FAQs)
What does having an MC number mean?
Having an MC number means the FMCSA has granted you legal authority to transport regulated goods for hire across state lines.
Do I need both a DOT and MC number?
Yes, you typically need a DOT and MC number if you're operating a for-hire trucking business across state lines.
Do you need an MC number to run locally?
No, you generally do not need an MC number to run locally within a single state.
Who doesn't need an MC number?
You don’t need an MC number if you're a private carrier hauling your own goods or only operating within one state with non-regulated cargo.

