FMCSA Operating Authority Glossary

Plain-English definitions of every FMCSA operating-authority, MC number, and new-carrier compliance term you run into when getting your trucking authority. 45 terms.

4

49 CFR §365.109(49 CFR §365.109T · FMCSA Application Processing Rule): The federal regulation governing how the FMCSA reviews operating-authority applications. The original §365.109 was suspended effective January 14, 2017; the operative section is §365.109T, which requires the evidence of financial responsibility (BMC-91/91X, or BMC-84/85 for brokers) and the BOC-3 designation to be filed within 20 days of the application notice publishing in the FMCSA Register as a preliminary grant of authority.; See also: Protest Period, OP-1
49 CFR §366(Designation of Process Agents Rule): The federal regulation that requires every interstate motor carrier, broker, and freight forwarder to file Form BOC-3 designating a process agent in every state where it operates. The BOC-3 is the implementation of this rule, and an active designation under §366 is a precondition for activating operating authority.; See also: BOC-3, Process Agent
49 CFR Part 387(Minimum Levels of Financial Responsibility): The federal regulation that sets minimum public-liability (BIPD) insurance amounts: typically $750,000 for general freight, $1M for oil-carrying tankers, $5M for many hazardous materials, and $1.5M–$5M for passenger carriers. Compliance is proven by the BMC-91 / BMC-91X filing the insurer sends to the FMCSA.; See also: BMC-91, BIPD, Operating Authority
49 USC §13902(Registration of Motor Carriers): The federal statute that requires for-hire motor carriers operating in interstate commerce to register with the FMCSA and obtain operating authority. It is the legal basis for the MC number and the OP-1 application process. Companion provisions cover brokers (§13904) and the $75,000 broker bond (§13906).; See also: Operating Authority, OP-1

A

Authority Letter(Operating Authority Letter · FMCSA Authority Letter): The official FMCSA document confirming a carrier or broker holds active operating authority (the OP-series grant letter). Factoring companies, brokers, and shippers frequently request it to verify status before working with a newly authorized carrier. It is separate from the SAFER snapshot, which shows live authority status online.; See also: Operating Authority, SAFER, MC Authority
Authority Reinstatement: The process of restoring a revoked, inactive, or involuntarily-revoked FMCSA operating authority. Common causes: lapsed BMC-91 insurance, a missed UCR renewal, an expired BOC-3 designation, or unpaid civil penalties. Reinstatement requires correcting the underlying issue, re-filing any compliance documents that lapsed, and paying the FMCSA reinstatement fee.; See also: Operating Authority, BMC-91, Dormant Authority, UCR

B

BIPD(Bodily Injury and Property Damage · Public Liability): Bodily Injury and Property Damage liability insurance — the federally required public-liability coverage a for-hire carrier must carry, proven to the FMCSA by the BMC-91 / BMC-91X filing. The minimum is $750,000 for general freight and rises to $1M–$5M for hazardous materials and passengers under 49 CFR Part 387.; See also: BMC-91, 49 CFR Part 387, Operating Authority
BMC-84(Property Broker Surety Bond): A $75,000 surety bond required of property and household-goods brokers under 49 USC §13906. It protects motor carriers and shippers from broker non-payment. Premiums are credit-driven and typically run 1–4% of the face value per year for new brokers. Filed with the FMCSA on Form BMC-84 by the surety company; the alternative is a BMC-85 trust fund.; See also: BMC-85, Property Broker
BMC-85(Broker Trust Fund Agreement): The trust-fund alternative to the BMC-84 surety bond: a broker may instead place $75,000 in cash into a trust maintained by a financial institution. Same protective purpose and dollar amount as the bond; different funding mechanism. Most brokers prefer the bond because the trust fund locks up working capital.; See also: BMC-84, Property Broker
BMC-91(BMC-91X · BIPD · Public Liability Insurance Filing): The FMCSA insurance filing proving a carrier maintains the federal minimum public-liability (BIPD) coverage — typically $750,000 for general freight, more for hazmat or passengers. Filed by the insurer on the carrier’s behalf as Form BMC-91 (single insurer) or BMC-91X (multiple insurers). It must be on file before authority activates and kept continuously, or the authority goes dormant.; See also: Operating Authority, 49 CFR Part 387, Dormant Authority
BOC-3(Designation of Process Agents · Form BOC-3): A federal FMCSA filing that names a process agent in every state authorized to accept legal service of process on behalf of an interstate motor carrier, broker, or freight forwarder. Required under 49 CFR §366 before operating authority can activate — without one, an MC number is issued but shows "NOT AUTHORIZED" on SAFER. FastAuthority coordinates the BOC-3 as part of the authority application.; See also: Process Agent, Operating Authority, 49 CFR §366

C

Cargo Insurance(BMC-34 · BMC-32): Insurance covering loss of or damage to the freight being hauled. The FMCSA eliminated the cargo-insurance filing requirement for most general-freight carriers in 2011, but household-goods (HHG) carriers must still maintain cargo insurance ($5,000 per vehicle / $10,000 per occurrence) and file Form BMC-34. Brokers and shippers may contractually require cargo coverage even where the FMCSA does not.; See also: HHG Authority, BMC-91
Common Carrier: A motor carrier authorized to haul freight for the general public under published rates. Subject to FMCSA operating authority and the full BOC-3 / insurance / UCR compliance stack. Distinct from a contract carrier, which serves a limited group of shippers under negotiated agreements rather than offering service to all comers.; See also: Contract Carrier, Operating Authority, For-Hire Carrier
Contract Carrier: A motor carrier that hauls freight under continuing contracts for a specific shipper or limited group of shippers, rather than for the general public. Holds FMCSA contract-carrier operating authority and carries the same BOC-3 and insurance obligations as a common carrier, but operates under negotiated rates instead of published tariffs.; See also: Common Carrier, Operating Authority
CSA Score(Compliance, Safety, Accountability · SMS): The FMCSA’s carrier-safety scoring system, calculated from roadside-inspection violations, crashes, and other compliance data over a rolling 24-month window, organized into seven BASICs. Brokers and shippers check CSA scores before assigning loads; elevated scores trigger FMCSA interventions. New carriers build a CSA record from their first inspection onward.; See also: New Entrant Safety Audit, SAFER

D

Docket Number(MC Docket · FF Docket · MX Docket): The FMCSA case/registration number assigned to an operating-authority grant, prefixed by type: MC for motor carriers and property brokers, FF for freight forwarders, and MX for Mexico-domiciled carriers. The docket number is the "MC number" carriers cite on load boards and broker packets; one company can hold multiple dockets (for example, both carrier and broker authority).; See also: MC Authority, MX Number, FF Authority
Dormant Authority(Inactive Authority · Revoked Authority): Operating authority that has been deactivated or revoked — most often because the carrier’s public-liability insurance lapsed or its UCR went unpaid. A dormant MC number shows "INACTIVE" or "NOT AUTHORIZED" on SAFER and cannot legally be used to haul for hire until reinstated. Letting authority sit dormant too long can require a brand-new application instead of reinstatement.; See also: Authority Reinstatement, BMC-91, SAFER

F

FF Authority(MC-FF · Freight Forwarder Authority): The FMCSA operating-authority designation for freight forwarders — entities that consolidate and assume liability for freight without necessarily operating their own commercial vehicles. MC-FF authority requires the OP-1(FF) application, the same BOC-3 process-agent designation as motor carriers, and public-liability insurance under 49 CFR Part 387.; See also: Freight Forwarder, OP-1(FF), Operating Authority
FMCSA(Federal Motor Carrier Safety Administration): The agency within the U.S. Department of Transportation that regulates commercial motor carriers, brokers, and freight forwarders in interstate commerce. It issues operating authority (MC numbers), publishes the safety regulations in 49 CFR Parts 350–399, and runs the SAFER and Licensing & Insurance public-records systems.; See also: Operating Authority, USDOT Number, FMCSA L&I
FMCSA L&I(Licensing & Insurance · L&I Public Records): The FMCSA’s Licensing & Insurance public-records system at li-public.fmcsa.dot.gov. It shows operating-authority status, BOC-3 process-agent designations, and insurance filings on record for any carrier or broker. Verification services, factoring companies, and brokers check L&I before doing business with a newly authorized operator.; See also: SAFER, FMCSA, Operating Authority
For-Hire Carrier: A carrier that transports freight or passengers belonging to others for compensation. For-hire interstate carriers must hold FMCSA operating authority (an MC number), unlike private carriers that haul only their own goods. The for-hire/private distinction is the threshold question for whether operating authority — and the BOC-3 designation that activates it — is required at all.; See also: Private Carrier, Common Carrier, Operating Authority
Freight Forwarder(FF Authority · MC-FF): An entity that assembles, consolidates, and tenders freight to motor carriers for line-haul transport, often issuing its own bills of lading and assuming carrier liability for the freight. Holds FMCSA freight-forwarder authority (MC-FF) and is subject to the same BOC-3 process-agent requirement and public-liability insurance as motor carriers. Differs from a broker, which never takes possession of freight.; Read the full guide →See also: FF Authority, Property Broker, OP-1(FF), BOC-3

H

Hazmat Authority(Hazardous Materials Carrier): Authority to transport hazardous materials regulated under 49 CFR Parts 100–185. Hazmat motor carriers face elevated public-liability insurance minimums ($1M–$5M depending on the commodity) under 49 CFR Part 387, and their drivers need an "H" CDL endorsement. The operating-authority application and BOC-3 requirement are otherwise the same as for general freight.; See also: Operating Authority, 49 CFR Part 387
HHG Authority(Household Goods Authority · HHG Carrier): FMCSA operating authority to transport household goods (residential moves) for hire across state lines. HHG authority is a distinct classification from general-freight motor-carrier authority and triggers additional consumer-protection rules, plus a cargo-insurance filing (BMC-34) that general-freight carriers no longer need. BOC-3 designation is required for HHG carriers and HHG brokers alike.; Read the full guide →See also: Operating Authority, Cargo Insurance, Common Carrier

I

IFTA(International Fuel Tax Agreement): A multi-state agreement that simplifies fuel-tax reporting for commercial vehicles operating across state lines. Carriers register with their base state, file a single quarterly return, and IFTA distributes the revenue to the states where mileage was actually driven. Required for most interstate trucks over 26,000 lbs or with three or more axles.; See also: IRP, Operating Authority
Interstate Commerce: Commercial transportation that crosses state lines, or that begins or ends in a different state from where the carrier is based. It triggers federal FMCSA oversight: a USDOT number, operating authority for for-hire carriers, BOC-3 designation, and public-liability insurance. Intrastate-only carriers operate under state oversight without these federal filings.; See also: Intrastate Commerce, Operating Authority, USDOT Number
Intrastate Commerce: Commercial transportation that stays entirely within a single state and does not carry interstate freight. Intrastate carriers are regulated by the state, not the FMCSA, and generally do not need an MC number — though many states require a state DOT number and may impose their own authority and insurance rules. Hauling any interstate load moves a carrier into federal jurisdiction.; See also: Interstate Commerce, Operating Authority
IRP(International Registration Plan): A reciprocal registration agreement among U.S. states and Canadian provinces that lets a commercial vehicle display a single apportioned license plate while operating in multiple jurisdictions, with fees split by miles driven per jurisdiction. The registration companion to IFTA on the fuel-tax side; both are state-administered, separate from FMCSA operating authority.; See also: IFTA

M

MC Authority(MC Number · Motor Carrier Authority · MC Docket): The FMCSA-issued operating-authority number (formatted "MC-######") that grants permission to haul regulated freight for hire across state lines. Issued once an operating-authority application clears FMCSA review with the full compliance stack on file: BOC-3 process-agent designation, BMC-91 public-liability insurance, and an active UCR registration. The MC number is what brokers and shippers verify on SAFER before tendering a load.; Read the full guide →See also: Operating Authority, OP-1, USDOT Number, BOC-3, BMC-91
MCS-150(Biennial Update · Motor Carrier Identification Report): The biennial update the FMCSA requires from every USDOT-registered carrier to keep its contact, address, fleet-size, and operations data current. Filed every 24 months based on the USDOT number’s last two digits. Failure to file deactivates the USDOT number and, in turn, suspends operating authority.; See also: USDOT Number, Operating Authority, UCR
MX Number(MX Authority · Mexican Carrier Authority): The FMCSA operating-authority docket prefix for Mexico-domiciled motor carriers authorized to operate in the United States. MX carriers go through FMCSA vetting and carry the same insurance and BOC-3 process-agent obligations as US carriers. Distinct from the MC (US/Canada motor carrier) and FF (freight forwarder) docket types.; See also: Docket Number, MC Authority

N

New Entrant Safety Audit: A safety audit the FMCSA conducts on every newly authorized motor carrier within the first 12 months of operation. The audit reviews driver-qualification files, drug & alcohol program compliance, hours-of-service records, and vehicle maintenance. New entrants are monitored for 18 months; a failed audit suspends operating authority until corrective action is verified.; Read the full guide →See also: Operating Authority, CSA Score, SAFER

O

OP-1(OP-1 Application · Application for Motor Property Carrier): The FMCSA application a motor carrier files to obtain operating authority, carrying a $300 government filing fee per authority type. Since May 14, 2026 the application is submitted through Motus: USDOT Registration System (motus.dot.gov), but the form is still widely called "the OP-1." Once FMCSA accepts it, the application publishes in the FMCSA Register as a preliminary grant, and the BOC-3 and BMC-91 insurance must be on file within 20 days of that notice for the authority to activate.; Read the full guide →See also: Operating Authority, URS, Protest Period, BOC-3, BMC-91
OP-1(FF)(Freight Forwarder Application): The FMCSA application a freight forwarder files to obtain MC-FF operating authority, with the same $300 filing fee as the standard OP-1. Like the motor-carrier application, OP-1(FF) publishes in the FMCSA Register as a preliminary grant once accepted, and the applicant’s BOC-3 and public-liability insurance must be on file within 20 days of that notice for the authority to activate on SAFER.; See also: OP-1, Freight Forwarder, FF Authority
OP-1(P)(Passenger Carrier Application): The FMCSA application for passenger-carrier operating authority — buses, motorcoaches, and other for-hire passenger transport. Passenger carriers face higher public-liability insurance minimums under 49 CFR Part 387 ($1.5M or $5M depending on seating capacity) and the same BOC-3 process-agent requirement as freight carriers.; See also: Passenger Authority, OP-1, 49 CFR Part 387
Operating Authority(FMCSA Authority · Trucking Authority · DOT Authority): Federal permission from the FMCSA to operate as a for-hire motor carrier, freight broker, or freight forwarder in interstate commerce, granted under 49 USC §13902. It is distinct from the USDOT number: the USDOT number identifies the carrier, while operating authority is the legal right to haul regulated freight for money across state lines. Authority must be paired with continuous BOC-3 and insurance filings to stay active on SAFER.; Read the full guide →See also: MC Authority, OP-1, USDOT Number, SAFER

P

Passenger Authority(OP-1(P) · Motor Passenger Carrier): FMCSA operating authority to transport passengers for hire in interstate commerce — buses, motorcoaches, shuttles. Applied for on OP-1(P), it carries higher public-liability insurance minimums than freight authority ($1.5M for vehicles seating 15 or fewer, $5M for 16+) and the same BOC-3 designation requirement.; See also: OP-1(P), Operating Authority, 49 CFR Part 387
Private Carrier: A business that transports its own goods in its own commercial vehicles, not for compensation. Private carriers need a USDOT number and must follow the safety regulations, but they do not need MC operating authority or a BOC-3 designation because they are not hauling for hire. Converting from private to for-hire operation triggers the full operating-authority application.; See also: For-Hire Carrier, USDOT Number, Operating Authority
Process Agent: A person or company legally authorized to accept service of process — lawsuits, subpoenas, court orders — on behalf of a motor carrier, broker, or freight forwarder. Federal rule 49 CFR §366 requires every interstate operator to designate a process agent in each state it operates in or travels through. The BOC-3 form records those designations.; See also: BOC-3, 49 CFR §366
Property Broker(MC-B · Freight Broker · Broker Authority): An entity that arranges transportation of freight for compensation without taking possession of it. Holds FMCSA property-broker authority (MC-B), must post a $75,000 BMC-84 surety bond or BMC-85 trust fund under 49 USC §13906, and must file a BOC-3 designation. A broker that also operates trucks needs separate motor-carrier authority.; Read the full guide →See also: BMC-84, BMC-85, Freight Forwarder, Operating Authority
Protest Period(10-Day Protest Window · FMCSA Vetting Window): The window during which the public may oppose a pending operating-authority application. FMCSA publishes the accepted application in the FMCSA Register as a preliminary grant of authority; under 49 CFR §365.203T a protest must be filed within 10 days of that notice. (The "21-day window" cited in older guides does not appear in the current rules.) Absent a valid protest, authority activates once FMCSA review completes and the insurance and BOC-3 filings are on record. Total time from submission to an active MC number is typically 3 to 6 weeks.; See also: OP-1, Operating Authority, 49 CFR §365.109

S

SAFER(Safety and Fitness Electronic Records): The FMCSA’s public carrier-lookup at safer.fmcsa.dot.gov. It returns operating-authority status, USDOT registration, insurance on file, and basic safety metrics for any registered carrier. Brokers, shippers, and load boards check SAFER to confirm a carrier is "AUTHORIZED" before tendering freight — which is why activating authority quickly matters.; See also: FMCSA, Operating Authority, USDOT Number

U

UCR(Unified Carrier Registration): An annual registration and fee paid by every interstate motor carrier, broker, leasing company, and freight forwarder under 49 USC §14504a. Fees are tiered by fleet size and remitted through a single base state. Keeping UCR current is one of the conditions for keeping operating authority active; a lapse can push authority dormant.; See also: Operating Authority, MCS-150, Dormant Authority
URS(Unified Registration System): The FMCSA’s consolidated online registration system that replaced the legacy paper OP-series forms for new applicants in 2017. URS issued the USDOT number and the operating-authority application in a single online flow and collected the $300 fee electronically. On May 14, 2026 it was succeeded by Motus: USDOT Registration System (motus.dot.gov) as FMCSA’s registration front door. The "OP-1" name persists in everyday use even though new carriers now register through Motus.; See also: OP-1, Operating Authority, FMCSA
USDOT Number(DOT Number): A unique identifier the FMCSA assigns to every commercial motor vehicle operator subject to federal safety regulation. Every interstate carrier needs one, but it is only an identifier — not operating authority. A for-hire interstate carrier needs both a USDOT number (the identity) and an MC number (the authority to haul for hire). The USDOT number must be displayed on both sides of every commercial motor vehicle.; Read the full guide →See also: MC Authority, Operating Authority, MCS-150, SAFER

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Source: "FMCSA operating authority glossary," fasttruckauthority.com (https://www.fasttruckauthority.com/glossary#glossary-terms). Updated June 8, 2026.

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