The owner-operator's trucking glossary
Every acronym and term you'll hit when starting your own trucking business, explained in plain English — LLC, EIN, USDOT, MC number, BOC-3, UCR, IFTA, MVR, ELD, HOS, factoring, CSA score and more. Search for anything you're unsure about.
34 terms
Backhaul
A return load that fills your empty miles heading back toward your home base, cutting deadhead.
BOC-3
A federal filing that designates a process agent in every state. Only a registered process-agent company can file it for you.
BOL
Bill of Lading — the legal document listing the freight and your proof of delivery for getting paid.
Broker
A middleman who matches shippers' freight with carriers and pays the carrier — often on 30+ day terms.
C/TPA (Consortium)
Consortium/Third-Party Administrator — a service that manages your DOT drug & alcohol testing program and keeps you in a random-testing pool.
CDL
Commercial Driver's License — required to operate a commercial motor vehicle.
CMV
Commercial Motor Vehicle — a vehicle used in commerce that meets DOT weight or use thresholds.
Commercial Auto Liability
Insurance that pays for injury or damage you cause in a crash. FMCSA requires at least $750,000 for general freight (more for hazmat).
CSA Score
Compliance, Safety, Accountability — FMCSA's safety-scoring system that brokers and insurers watch when deciding to work with you.
Deadhead
Empty miles driven without a load, usually to reach your next pickup. Deadhead lowers your true revenue per mile.
DOT Physical
A medical exam by a certified examiner that determines whether you're physically fit to drive a commercial motor vehicle.
DQ File
Driver Qualification file — a required folder of documents (application, MVR, med card, etc.) kept for every driver, including you.
Drug & Alcohol Clearinghouse
FMCSA's online database of CDL drivers' drug and alcohol violations. Carriers must run pre-employment and annual queries on every driver.
DVIR
Driver Vehicle Inspection Report — the daily pre-trip and post-trip inspection record.
EIN
Employer Identification Number — a free federal tax ID from the IRS that works like a Social Security number for your business.
ELD
Electronic Logging Device — hardware wired into your truck that automatically records your Hours of Service.
Factoring
Selling your freight invoice to a factoring company for immediate cash instead of waiting 30+ days for the broker to pay.
FMCSA
The federal agency that regulates commercial trucking safety and issues operating authority.
HOS
Hours of Service — the federal rules that limit driving and on-duty time (e.g., 11-hour driving limit, 14-hour window, 30-minute break).
IFTA
International Fuel Tax Agreement — a quarterly report that splits the fuel tax you owe among the states you drove in, based on miles and fuel.
LLC
Limited Liability Company — a state-registered business structure that separates your personal assets from business debts and lawsuits, with simple pass-through taxes.
MC Number (Operating Authority)
Federal permission to haul regulated freight for hire across state lines. 'MC' stands for Motor Carrier.
MCS-90
An endorsement on your insurance policy proving you meet FMCSA's financial-responsibility minimums.
ME Certificate (Med Card)
Medical Examiner's Certificate — proof you passed a DOT physical from an examiner on FMCSA's National Registry. Renew before it expires (usually every 24 months).
MVR
Motor Vehicle Record — your official state driving history (tickets, crashes, license status). Pulled at hire and reviewed at least once a year.
New Entrant Safety Audit
An FMCSA review of a new carrier's records within its first 12 months. Failing it can revoke your brand-new authority.
Process Agent
A person or company in each state authorized to receive legal documents (service of process) on your behalf.
Recourse vs Non-Recourse
With recourse factoring you must repay if the broker never pays; non-recourse absorbs that loss for approved brokers (usually at a higher fee).
RPM
Revenue Per Mile — a load's pay divided by total miles (including deadhead). It's your key profitability number.
S-Corp
A tax election an LLC can make to potentially lower self-employment tax once profits grow: you pay yourself a reasonable salary and take the rest as distributions. Ask a CPA.
SAFER
FMCSA's public 'Company Snapshot' tool used to verify a carrier's or broker's authority, insurance and safety record.
Sole Proprietor
The simplest business form, where you and the business are legally the same — easy to start but with zero liability protection.
UCR
Unified Carrier Registration — an annual fee interstate carriers pay, based on how many trucks they run.
USDOT Number
A unique FMCSA ID that tracks your safety record — inspections, crashes and audits. It's your business's safety identity.
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