MC Authority
MC authority is the federal operating permission, issued by the FMCSA, that lets you legally haul freight for hire across state lines.
What you actually need to know
When the FMCSA approves your MC authority application, you become a "for-hire" motor carrier. That's the legal status that lets you accept money to move someone else's freight on the interstate.
You apply for MC authority by submitting Form OP-1 to the FMCSA and paying the $300 federal fee. After approval (usually 3–4 weeks), you're issued an MC number — your operating authority identifier. You also need a USDOT number (these are different — see below), commercial insurance on file, and a BOC-3 process agent designation before your authority goes "active."
You don't need MC authority if you only haul within one state (intrastate) or if you only haul your own goods. You do need it the moment you start hauling other people's freight across state lines for money.
Common mistakes / confusions
- MC number ≠ USDOT number. They're two different identifiers, both required.
- Filing services charge $1,500–$2,500 to handle the OP-1 form. The form itself is free to file and the FMCSA fee is $300. You can do this yourself.
- "Authority pending" is not the same as "authority active." Your authority isn't active until insurance and BOC-3 are filed.
Related terms
Where to go next
Filing MC Authority soon?
Get the free TruckStart MC Authority Filing Checklist before you spend the $300 FMCSA filing fee.
TruckStart is an educational tool, not a law firm, accounting firm, insurance agency, freight broker, or filing service. Always verify current requirements directly with FMCSA, your state, the IRS, and qualified professionals before making business decisions.