MC authority is one of the most misunderstood requirements in the trucking industry. New carriers often assume that getting a DOT number is all they need to start hauling freight for hire. It is not. If you are transporting other people's cargo across state lines and getting paid for it, you need Motor Carrier operating authority — and getting it wrong can result in fines, out-of-service orders, or having your freight impounded.
What Is MC Authority?
Motor Carrier (MC) authority is a federal operating license issued by the FMCSA that legally authorizes you to transport regulated freight or passengers for compensation in interstate commerce. It is separate from your USDOT number, which is a safety identification number. Your USDOT number identifies you. Your MC authority authorizes you to operate. You need both if you are a for-hire carrier.
Who Needs MC Authority?
You need MC authority if you transport cargo for compensation across state lines in a vehicle with a GVWR of 10,001 pounds or more. This includes owner-operators who lease to a motor carrier and haul under the carrier's authority — although in that case, the carrier holds the authority and you operate under it. Freight brokers need a separate type of authority called MB (Motor Broker) authority. Household goods carriers need their own HG authority. Private carriers — companies that haul only their own products, not freight for others — typically do not need MC authority, only a USDOT number.
How to Apply for MC Authority
Applications for MC authority are submitted through the FMCSA Unified Registration System at portal.fmcsa.dot.gov. You must already have a USDOT number to apply. The application fee is $300 per authority type. You will be asked to specify what type of authority you are applying for, what type of cargo you haul, and whether you operate as a carrier, broker, or both. After submitting the application and paying the fee, your application enters a mandatory 10-business-day protest period during which other carriers can formally object to your authority being granted. If no valid protest is filed, FMCSA typically grants authority within 21 to 25 calendar days of your application.
What You Need Before Authority Activates
Receiving MC authority does not mean you can immediately begin hauling freight. Before your authority becomes active, you must have two additional things on file with FMCSA. First, you must have proof of insurance on file. Your insurance company must file Form MCS-90 (and BMC-91 or BMC-91X for cargo) directly with FMCSA on your behalf. FMCSA requires a minimum of $750,000 in liability coverage for most general freight carriers, $1,000,000 for certain carriers, and $5,000,000 for hazmat. Second, you must have a BOC-3 filing on file. A BOC-3 designates process agents in every state — people who can legally accept service of process on your behalf. Without both of these on file, your authority will be granted on paper but will not be active.
How Long Does the Process Take?
From the day you submit your MC authority application, expect the process to take 4 to 8 weeks before you are fully operational. The authority itself takes 21 to 25 days. Getting insurance in place typically takes 1 to 3 weeks depending on your driving record and the carrier. Filing your BOC-3 through a blanket filing service usually takes 1 to 3 business days. The pieces can run in parallel — you can be working on insurance and BOC-3 while your authority is in the protest period.
What Happens After You Get Authority
Once your authority is active, you are required to maintain your insurance on file with FMCSA at all times. A lapse in insurance will cause your authority to be revoked automatically. You must also register for Unified Carrier Registration (UCR) annually, maintain your USDOT biennial update, and comply with all FMCSA safety regulations including drug and alcohol testing, hours of service, and driver qualification file requirements. New carriers are also subject to a New Entrant Safety Audit within the first 12 months of receiving authority.
Disclaimer: This guide is for educational purposes only and does not constitute legal advice. FMCSAFiler.com is not affiliated with FMCSA, the U.S. Department of Transportation, or any government agency. Always verify requirements directly with the relevant agency and consult a licensed transportation attorney for advice specific to your situation.