If you plan to operate a trucking company that hauls freight across state lines, you will likely need an MC number. This number is a critical part of federal trucking authority and allows motor carriers to legally transport freight for compensation in interstate commerce.
🚛 What Is an MC Number? A Guide for Trucking Companies
If you plan to operate a trucking company that hauls freight across state lines, you will likely need an MC number.
This number is a critical part of federal trucking authority and allows motor carriers to legally transport freight for compensation in interstate commerce.
Understanding how an MC number works is essential for:
- 🚛 Trucking companies
- 👨✈️ Owner-operators
- 📦 Logistics businesses entering the industry
At Protec Consulting Group, we work with trucking companies across Texas and throughout the United States, helping them secure the insurance coverage required to obtain and maintain their operating authority.
🔢 What Is an MC Number?
An MC number (Motor Carrier number) is issued by the Federal Motor Carrier Safety Administration (FMCSA).
The MC number grants a trucking company operating authority, allowing them to:
- 🌎 Transport freight across state lines
- 💰 Haul loads for compensation
- 🚛 Operate as a for-hire interstate carrier
While a USDOT number tracks safety records and compliance, the MC number authorizes a trucking company to operate commercially.
In many cases, trucking companies need both:
- 🔢 USDOT Number – Tracks safety and compliance
- 📄 MC Number – Grants interstate operating authority
📋 Who Needs an MC Number?
Not every trucking company requires an MC number.
It is generally required if a business:
- 🌎 Transports freight across state lines for compensation
- 🚛 Operates as a for-hire motor carrier
- 📦 Transports regulated commodities
- 🤝 Operates as a freight broker or freight forwarder
Example
If a trucking company based in Texas hauls freight to:
- Oklahoma
- Louisiana
- New Mexico
- Any other state
…and they are paid to haul the freight, they will usually need an MC number.
Companies that operate strictly within one state (intrastate trucking) may not require an MC number depending on state regulations.
🏢 Types of FMCSA Operating Authority
The FMCSA issues different types of MC authority depending on the type of business operation.
Common types include:
🚛 Motor Carrier of Property
For companies that haul freight or commodities.
📦 Motor Carrier of Household Goods
For companies that move personal household items.
🤝 Broker Authority
For companies that arrange freight transportation but do not haul it themselves.
📦 Freight Forwarder Authority
For companies that consolidate shipments and coordinate transportation.
Each type of authority may require different levels of insurance and compliance.
🛡 Insurance Requirements for MC Authority
Before the FMCSA activates an MC number, motor carriers must have the proper insurance coverage on file.
Insurance is usually submitted electronically by the insurance company through federal filings.
Common filings include:
- 📄 BMC-91 or BMC-91X – Proof of liability insurance
- 📦 BMC-34 – Cargo insurance (for household goods carriers)
- 📋 BOC-3 filing – Designates process agents in each state
Without these filings, the MC authority will remain inactive.
⚠️ Why MC Authority Matters for Trucking Companies
Having active MC authority allows trucking companies to legally operate as for-hire interstate carriers.
It also allows them to:
- 📦 Work with freight brokers
- 🤝 Contract directly with shippers
- 🚛 Build relationships with logistics companies
- 🌎 Expand operations across multiple states
Freight brokers and shippers often verify MC authority before assigning loads to ensure the carrier is licensed and insured.
🤝 Insurance Support for Motor Carriers
Obtaining MC authority is only one step in building a successful trucking company.
Maintaining the proper insurance coverage is essential to protect:
- 🚛 Your trucks
- 👨✈️ Your drivers
- 📦 The freight you transport
- 💰 Your business finances
At Protec Consulting Group, we specialize in trucking insurance for motor carriers hauling:
- 🚛 Dry van freight
- ❄️ Refrigerated (reefer) loads
- 🪵 Flatbed freight
- ⚙️ Specialized equipment
Our team helps trucking companies secure the insurance coverage required to activate and maintain their FMCSA operating authority.
📞 Starting a Trucking Company?
If you are starting a trucking company or reviewing your current insurance coverage, Protec Consulting Group can help ensure your business is properly protected and compliant.
🚛 Protec Consulting Group
Protecting Trucking Companies Every Mile of the Way.
🆕 What changed in 2026: Motus
No, MC numbers were not eliminated. FMCSA has discussed phasing them out for years, and the Phase II rollout of its new registration system did not include eliminating MC/FF numbers. They are still being issued, and existing docket numbers were not reassigned.
What did change is how you register. On May 14, 2026, FMCSA's legacy registration systems were retired and replaced by Motus. Registration options in the old FMCSA Portal stopped working that evening. The Portal itself still exists — only its registration functions moved.
You now have to prove who you are
This is the step that catches people out. Motus requires identity proofing before you can file anything:
- You need Login.gov credentials to access the system at all.
- Individual users verify their identity with a government-issued ID and a facial scan, done through a smartphone or tablet.
- Companies must use the same Login.gov email to claim their existing USDOT number.
This applies to new registrants and to existing carriers at their first login — so if you have been operating for years and have not logged in since May, expect to go through it.
What did not change
The stack is the same: USDOT number, operating authority, a BOC-3 process agent, and your insurance filed on a BMC-91X. And the part carriers still get caught by — your authority does not activate until your insurance company files it. That part is on your agent, not on you.
Verified against FMCSA and the Federal Register on August 21, 2026. Federal registration rules change; if you are reading this months later, call us and we will confirm what is current before you file.