1. Registration & Licensing (15 terms)
These are the foundational terms you need to know before you file a single document. Every trucking company in the United States must obtain specific federal and state registrations to operate legally.
| Term | Definition | Category |
|---|---|---|
| BOC-3 | Blanket of Coverage form that designates process agents in all 50 states plus Washington D.C. to accept legal documents on behalf of a motor carrier. Required before MC Authority can be activated. | Registration |
| Common Authority | The most common type of MC Authority that permits a carrier to haul freight for any shipper or broker willing to pay. Most owner-operators apply for this type. | Registration |
| Contract Authority | MC Authority that permits a carrier to haul freight only under specific written contracts with designated shippers. Less common than Common Authority. | Registration |
| Broker Authority | MC Authority that permits a company to arrange the transportation of freight without hauling it. Requires a $75,000 surety bond or trust fund. | Registration |
| CDL (Commercial Driver's License) | A license required to operate any commercial motor vehicle with a GVWR over 26,001 lbs, vehicles designed for 16+ passengers, or vehicles carrying hazardous materials. Issued by the driver's home state. | Registration |
| EIN (Employer Identification Number) | A federal tax identification number issued by the IRS for your business. Required to open a business bank account, file taxes, hire employees, and register with the FMCSA. | Registration |
| FMCSA | Federal Motor Carrier Safety Administration — the federal agency within the U.S. Department of Transportation that regulates the trucking industry, issues operating authority, and enforces safety standards. | Registration |
| LLC (Limited Liability Company) | The most popular business entity structure for trucking companies. Provides personal asset protection with pass-through taxation and minimal annual compliance requirements. | Registration |
| MC Number | Motor Carrier number issued by the FMCSA that authorizes a company to transport freight or passengers for hire in interstate commerce. The legal permission to operate as a for-hire carrier. | Registration |
| MCS-150 | The biennial update form filed with the FMCSA to keep your company information current. Must be updated every two years based on the last digit of your USDOT number. | Registration |
| Process Agent | A person or company authorized to accept legal documents (service of process) on behalf of a motor carrier in a given state. Designated through the BOC-3 filing. | Registration |
| SCAC Code | Standard Carrier Alpha Code — a unique two-to-four letter code that identifies a transportation company. Required for intermodal shipments, EDI transactions, and certain state permits. | Registration |
| UCR (Unified Carrier Registration) | An annual registration and fee required for all interstate motor carriers, brokers, freight forwarders, and leasing companies. For carriers with 0-2 trucks, the annual fee is $60. | Registration |
| URS (Unified Registration System) | The FMCSA's online portal where carriers apply for USDOT numbers, MC Authority, and manage their registration information. Replaced the older OP-1 paper application. | Registration |
| USDOT Number | A unique identifier assigned by the Department of Transportation to every commercial motor vehicle company operating in interstate commerce. Used to track safety records, inspections, crash history, and compliance reviews. | Registration |
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2. Safety & Compliance (18 terms)
Safety and compliance are the backbone of every trucking operation. The FMCSA monitors carriers continuously, and violations in this area can shut down your business.
| Term | Definition | Category |
|---|---|---|
| BASICs | Behavior Analysis and Safety Improvement Categories — the seven safety categories tracked by the CSA program: Unsafe Driving, Crash Indicator, HOS Compliance, Vehicle Maintenance, Controlled Substances, Hazmat Compliance, and Driver Fitness. | Safety |
| Clearinghouse (FMCSA Drug & Alcohol) | A federal online database that records all drug and alcohol program violations for CDL holders. Employers must query the Clearinghouse before hiring a driver and at least annually thereafter. | Safety |
| CMV (Commercial Motor Vehicle) | Any vehicle used in interstate commerce that has a GVWR or GCWR of 10,001 lbs or more, is designed to transport 16+ passengers, or hauls hazardous materials requiring placards. | Safety |
| Compliance Review | An on-site examination of a motor carrier's operations by FMCSA or state officials to determine whether the carrier meets federal safety regulations. Can result in fines, a conditional rating, or an out-of-service order. | Safety |
| CSA (Compliance, Safety, Accountability) | The FMCSA's data-driven safety enforcement program that scores carriers across seven BASICs categories. High CSA scores trigger interventions, audits, and can disqualify you from working with certain brokers and shippers. | Safety |
| DQ File (Driver Qualification File) | A set of documents that a motor carrier must maintain for every driver. Includes the driver's application, MVR, medical certificate, road test certificate, annual review, and previous employer inquiries. | Safety |
| Drug & Alcohol Program | A federally mandated testing program for CDL drivers operating vehicles over 26,001 lbs. Includes pre-employment, random, post-accident, reasonable suspicion, and return-to-duty testing. | Safety |
| DVIR (Driver Vehicle Inspection Report) | A written report completed by the driver at the end of each day documenting the condition of the vehicle and any defects discovered. Carriers must review, sign, and retain DVIRs. | Safety |
| ELD (Electronic Logging Device) | A federally mandated device installed in a commercial motor vehicle that automatically records driving time and Hours of Service data. Replaced paper logbooks under the ELD mandate effective December 2017. | Safety |
| FMCSR (Federal Motor Carrier Safety Regulations) | The comprehensive set of federal rules (Title 49, Parts 350-399) governing the operation of commercial motor vehicles in interstate commerce. Covers driver qualifications, HOS, vehicle maintenance, and more. | Safety |
| FSMA (Food Safety Modernization Act) | FDA regulation that establishes requirements for the sanitary transportation of human and animal food. Carriers hauling food products must comply with temperature controls, vehicle cleanliness, and record-keeping rules. | Safety |
| GVWR (Gross Vehicle Weight Rating) | The maximum allowable total weight of a vehicle including the vehicle itself, cargo, passengers, fuel, and equipment as specified by the manufacturer. Determines many federal compliance requirements. | Safety |
| HOS (Hours of Service) | Federal regulations that limit how many hours a CMV driver can be on duty and driving. Key rules: 11-hour driving limit, 14-hour on-duty window, 30-minute break requirement, 60/70-hour weekly limit, and 34-hour restart provision. | Safety |
| Medical Certificate (DOT Physical) | A certificate from a licensed medical examiner on the National Registry confirming that a CDL driver is physically qualified to operate a commercial motor vehicle. Valid for up to 24 months. | Safety |
| MVR (Motor Vehicle Record) | An official driving record obtained from the driver's state of licensure. Carriers must obtain an MVR for each driver annually and at hire to verify driving history and license validity. | Safety |
| New Entrant Safety Audit | A mandatory safety review conducted within the first 18 months after a new carrier's MC Authority goes active. Evaluates whether the carrier has adequate safety management controls in place. | Safety |
| Safety Rating | A rating assigned by the FMCSA after a compliance review: Satisfactory, Conditional, or Unsatisfactory. An Unsatisfactory rating can result in an operations shutdown order. | Safety |
| SMS (Safety Measurement System) | The FMCSA's system that quantifies carrier safety performance using data from inspections, crashes, and investigations. SMS scores determine which carriers are prioritized for enforcement action. | Safety |
3. Insurance (12 terms)
Insurance is non-negotiable in trucking. Your MC Authority will not activate without proof of coverage, and brokers will not book you without adequate policies in place.
| Term | Definition | Category |
|---|---|---|
| BMC-91 | The form used by an insurance company to file proof of public liability (bodily injury and property damage) insurance with the FMCSA on behalf of a motor carrier. Required for MC Authority activation. | Insurance |
| BMC-34 | The form used to file proof of a surety bond with the FMCSA as an alternative to the BMC-91 insurance filing. Less common than BMC-91 for motor carriers. | Insurance |
| Bobtail Insurance | Insurance that covers a truck when it is being driven without a trailer attached, typically when driving to pick up a load or returning after delivery. Also called deadhead coverage by some insurers. | Insurance |
| Cargo Insurance | Insurance that covers the value of the freight being transported in case of damage, theft, or loss during transit. Most brokers require a minimum of $100,000 in cargo coverage. | Insurance |
| Certificate of Insurance (COI) | A document issued by an insurance company that summarizes the types and amounts of coverage a carrier holds. Brokers and shippers typically request a COI before booking loads. | Insurance |
| Commercial Auto Insurance | Primary liability insurance for commercial vehicles that covers bodily injury and property damage to third parties. The FMCSA minimum is $750,000 for general freight carriers, up to $5,000,000 for hazmat. | Insurance |
| Deductible | The amount a carrier pays out of pocket before insurance coverage kicks in after a claim. Higher deductibles lower premium costs but increase financial risk per incident. | Insurance |
| General Liability Insurance | Insurance that covers claims of bodily injury or property damage that occur during normal business operations but are not related to vehicle accidents. Covers slip-and-fall at your office, loading dock incidents, and similar claims. | Insurance |
| Non-Trucking Liability (NTL) | Insurance that covers a leased owner-operator when using their truck for personal, non-business purposes. Required by many carriers for owner-operators leased on to their authority. | Insurance |
| Occupational Accident Insurance | Coverage that provides benefits to independent contractors (owner-operators) for work-related injuries. Not the same as workers' compensation but serves a similar purpose for non-employees. | Insurance |
| Physical Damage Insurance | Insurance covering damage to your own truck and trailer from collisions, fire, theft, vandalism, or natural disasters. Lenders require this coverage on financed or leased equipment. | Insurance |
| Surety Bond | A financial guarantee filed with the FMCSA. Freight brokers must maintain a $75,000 surety bond (BMC-84). Motor carriers may file a surety bond (BMC-34) as an alternative to traditional insurance. | Insurance |
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4. Taxes & Permits (11 terms)
Operating across state lines triggers multiple tax obligations and permit requirements. Missing even one can result in fines at weigh stations or during audits.
| Term | Definition | Category |
|---|---|---|
| 2290 (Form 2290 / HVUT) | The IRS form used to pay the Heavy Vehicle Use Tax on trucks with a taxable gross weight of 55,000 lbs or more. Filed annually with a tax year from July 1 to June 30. The tax ranges from $100 to $550 per vehicle. | Taxes |
| Cab Card | A registration document issued under the IRP that must be carried in the vehicle. Lists every jurisdiction where the vehicle is registered and serves as proof of registration during inspections. | Taxes |
| CT Mileage Tax | A per-mile highway use tax imposed by the state of Connecticut on motor carriers operating vehicles with a gross weight of 26,000 lbs or more on Connecticut highways. | Taxes |
| HUT (Highway Use Tax) | A broad term for state-level taxes imposed on trucks for using public highways. New York HUT, Kentucky KIT weight-distance tax, New Mexico WDT, and Oregon WMT are the most common examples. | Taxes |
| IFTA (International Fuel Tax Agreement) | A fuel tax reporting system among U.S. states and Canadian provinces that distributes fuel taxes based on miles driven in each jurisdiction. Carriers file quarterly IFTA returns and pay or receive credits based on where fuel was purchased versus where miles were driven. | Taxes |
| IRP (International Registration Plan) | A registration reciprocity agreement among states and Canadian provinces that allows commercial vehicles to travel across jurisdictions by paying registration fees proportional to the miles driven in each jurisdiction. | Taxes |
| KYU (Kentucky Weight-Distance Tax) | A per-mile tax imposed by Kentucky on carriers operating vehicles with a combined gross weight over 59,999 lbs on Kentucky highways. Requires a Kentucky KIT number. | Taxes |
| NM WDT (New Mexico Weight-Distance Tax) | A per-mile tax imposed by New Mexico on vehicles with a gross weight over 26,000 lbs operating on New Mexico highways. Requires a New Mexico WDT permit. | Taxes |
| NY HUT (New York Highway Use Tax) | A tax imposed on motor carriers operating certain vehicles on New York State highways. Applies to trucks with a gross weight over 18,000 lbs. Requires a NY HUT certificate. | Taxes |
| OR WMT (Oregon Weight-Mile Tax) | A per-mile tax charged by Oregon on trucks with a registered weight over 26,000 lbs operating on Oregon public roads. Oregon does not charge fuel tax to truckers; the WMT replaces it. | Taxes |
| Oversize/Overweight Permit | A special state-issued permit required when a load exceeds the legal limits for height (13'6"), width (8'6"), length, or weight (80,000 lbs GVW). Each state has its own permit system and fees. | Taxes |
5. Operations (16 terms)
Understanding the operational side of trucking is critical whether you are running your own authority or considering leasing on to another carrier.
| Term | Definition | Category |
|---|---|---|
| Bill of Lading (BOL) | A legal document issued by a carrier to a shipper that details the type, quantity, and destination of the goods being transported. Serves as a receipt, a contract, and a document of title. | Operations |
| Broker (Freight Broker) | A licensed intermediary who arranges the transportation of freight between shippers and carriers without actually hauling the goods. Must hold Broker Authority and a $75,000 surety bond. | Operations |
| Carrier Packet | A set of documents a carrier submits to a broker to get approved and start receiving loads. Typically includes MC certificate, insurance COI, W-9, signed broker-carrier agreement, and FMCSA authority letter. | Operations |
| Common Carrier | A motor carrier that offers its transportation services to the general public for compensation, as opposed to a private carrier that only hauls its own goods. | Operations |
| Company Driver | A truck driver who is employed by a motor carrier as a W-2 employee. The carrier provides the truck, pays for fuel and insurance, and handles all compliance. The driver earns a salary or per-mile rate. | Operations |
| Deadhead | Driving a truck empty (without cargo) to pick up the next load or return to the home base. Deadhead miles generate no revenue and are a key factor in profitability calculations. | Operations |
| Detention Pay | Additional compensation paid to a driver or carrier when loading or unloading at a shipper or receiver takes longer than the agreed-upon free time (usually 2 hours). Rates vary but typically range from $25 to $75 per hour. | Operations |
| Dispatch / Dispatcher | The person or service responsible for finding and assigning loads to trucks, negotiating rates, planning routes, and managing the daily logistics of a carrier's fleet. | Operations |
| Factoring | A financial service where a factoring company purchases a carrier's unpaid freight invoices at a discount (typically 2-5%) and provides immediate cash. Helps carriers manage cash flow when brokers pay on 30-60 day terms. | Operations |
| Freight Forwarder | A company that arranges the shipment of goods on behalf of shippers, often consolidating smaller shipments into larger ones. Different from a broker because a forwarder takes possession of the freight. | Operations |
| Lease Operator (Lease Purchase) | A driver who is leasing a truck from a carrier with the option or obligation to purchase it at the end of the lease term. Operates under the carrier's authority rather than their own MC. | Operations |
| Load Board | An online marketplace where shippers and brokers post available loads and carriers search for freight. Major load boards include DAT, Truckstop.com, and Direct Freight. | Operations |
| Lumper Fee | A charge paid to a third-party labor service for loading or unloading freight at a warehouse or distribution center. Common in grocery and retail freight. Carriers should obtain a lumper receipt for reimbursement. | Operations |
| Owner-Operator | A truck driver who owns or leases their own commercial vehicle and operates either under their own MC Authority or leased onto another carrier's authority. Responsible for their own business expenses, maintenance, and insurance. | Operations |
| Private Carrier | A company that transports its own goods using its own trucks and drivers. Not for hire and does not require MC Authority, though a USDOT number is still needed for vehicles over 10,001 lbs. | Operations |
| Rate Confirmation | A written agreement between a carrier and a broker or shipper that specifies the rate, pickup and delivery details, and terms for a specific load. Serves as the contract for that shipment. | Operations |
6. Equipment (14 terms)
Knowing your equipment types affects everything from the loads you can haul to your insurance rates and the permits you need.
| Term | Definition | Category |
|---|---|---|
| Bobtail | A tractor (cab) driven without a trailer attached. "Bobtailing" refers to the act of driving the truck without a trailer, typically when heading to pick up a load. | Equipment |
| Car Hauler (Auto Carrier) | A specialized trailer designed to transport vehicles. Open car haulers carry 7-10 vehicles; enclosed carriers carry 2-6 vehicles with full weather protection. Requires specific insurance endorsements. | Equipment |
| Conestoga | A flatbed trailer with a retractable tarp system that rolls back for loading and provides enclosed protection for freight during transit. Combines flatbed versatility with dry van cargo protection. | Equipment |
| Day Cab | A tractor without a sleeper berth, designed for local and regional routes where the driver returns home daily. Lighter and more maneuverable than sleeper cabs. | Equipment |
| Dry Van | The most common type of enclosed trailer, used to haul non-perishable, non-temperature-sensitive freight. Standard dimensions: 53 feet long, 8'6" wide, 9' interior height. Accounts for roughly 70% of all freight hauled in the U.S. | Equipment |
| Flatbed | An open trailer with no sides or roof, used for oversized cargo, construction materials, machinery, lumber, and steel. Requires tarping, strapping, and chain securement. Typically pays higher rates than dry van. | Equipment |
| FTL (Full Truckload) | A shipment that fills an entire trailer or is large enough that no other freight will be loaded with it. The carrier picks up at origin and delivers to a single destination without intermediate stops. | Equipment |
| Hotshot | A trucking operation that uses a medium-duty truck (Class 3-5, typically a pickup or flatbed) to haul time-sensitive or smaller loads. Often does not require a CDL if the GCWR stays below 26,001 lbs. | Equipment |
| Intermodal | Freight transported using two or more modes of transportation (truck, rail, ship) without handling the cargo itself when changing modes. Uses standardized containers that transfer between truck chassis and rail cars. | Equipment |
| LTL (Less Than Truckload) | A shipment that does not fill an entire trailer. Multiple LTL shipments from different shippers are consolidated onto a single trailer. Carriers operate hub-and-spoke networks with terminals for sorting freight. | Equipment |
| Reefer (Refrigerated Trailer) | A temperature-controlled trailer used to haul perishable goods such as produce, meat, dairy, pharmaceuticals, and frozen foods. Equipped with a diesel-powered refrigeration unit that maintains temperatures from -20°F to 70°F. | Equipment |
| Sleeper Cab | A tractor equipped with a sleeping compartment behind the driver's seat, allowing the driver to rest during long-haul trips without leaving the truck. Sizes range from a basic bunk to full-size living quarters. | Equipment |
| Step Deck (Drop Deck) | A flatbed trailer with a lower deck section that allows hauling taller freight without exceeding the legal height limit of 13'6". The front rides higher to clear the tractor's fifth wheel. | Equipment |
| Tanker | A cylindrical trailer designed to haul liquid or gaseous cargo such as fuel, chemicals, milk, or water. Requires special endorsements on the CDL (N for tank vehicles, H for hazmat) and additional insurance coverage. | Equipment |
7. Inspections (10 terms)
Inspections happen at weigh stations, during roadside stops, and during scheduled audits. Knowing these terms helps you prepare and stay in compliance.
| Term | Definition | Category |
|---|---|---|
| Annual Vehicle Inspection | A comprehensive inspection required at least once every 12 months for every commercial motor vehicle. Must be performed by a qualified inspector, and the inspection report and decal must be carried in the vehicle. | Inspections |
| CVSA (Commercial Vehicle Safety Alliance) | An international organization of truck safety officials that standardizes inspection criteria and procedures across North America. Sets the standards for roadside inspections and the annual International Roadcheck event. | Inspections |
| DataQs | An FMCSA system that allows carriers to challenge the accuracy of data in their safety records, including inspection reports and crash records. Carriers file a Request for Data Review (RDR) through the DataQs portal. | Inspections |
| DOT Audit | A compliance review conducted by the FMCSA or state agencies to evaluate whether a motor carrier meets all federal safety regulations. Examines driver qualification files, drug testing records, vehicle maintenance logs, HOS compliance, and insurance documentation. | Inspections |
| Inspection Level I (Full) | The most comprehensive roadside inspection. Includes examination of both the driver (credentials, HOS, medical card) and the vehicle (brakes, tires, lights, coupling, frame, exhaust). Takes 45-60 minutes on average. | Inspections |
| Inspection Level II (Walk-Around) | A walk-around driver and vehicle inspection that covers the same items as Level I but does not require the inspector to go under the vehicle. The most common type of roadside inspection encountered at weigh stations. | Inspections |
| Inspection Level III (Driver-Only) | An inspection that examines only the driver's credentials, including CDL, medical certificate, HOS records, seatbelt use, and substance testing compliance. No vehicle inspection is performed. | Inspections |
| Mock DOT Audit | A voluntary, simulated DOT audit performed by a compliance consultant to identify deficiencies and violations before an actual FMCSA audit occurs. Helps carriers fix problems proactively and avoid penalties. | Inspections |
| OOS (Out of Service) | An order that removes a driver or vehicle from the road immediately due to safety violations found during an inspection. The driver or vehicle cannot operate until the violations are corrected. OOS rates are a key CSA metric. | Inspections |
| Pre-Trip / Post-Trip Inspection | Daily inspections that a driver must perform before starting a trip and after completing a trip. Required by FMCSA regulations (49 CFR 396.13). Checks include brakes, tires, lights, mirrors, coupling devices, and fluid levels. | Inspections |
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How to Use This Glossary
If you are starting a trucking company, begin with the Registration & Licensing section to understand the terms you will encounter during your first filings. Move to Safety & Compliance once your authority is active and you are preparing for the New Entrant Safety Audit.
For ongoing operations, the Insurance, Taxes & Permits, and Operations sections contain the day-to-day vocabulary you need when dealing with brokers, insurance agents, and state agencies. The Equipment section helps you communicate precisely about trailer types, and Inspections prepares you for every type of stop and audit you may face.
We update this glossary regularly as federal regulations change. Bookmark this page for quick reference.