Fast Trucking ComplianceTrucking Compliance Glossary
Plain-English definitions of every federal trucking compliance term — BOC-3, USDOT, MC, MCS-150, IFTA, IRP, BMC-91, CSA, ELDT, Clearinghouse, and 90+ more. Each entry cites the underlying CFR or USC where applicable.
By Korey Sharp-Paar · Reviewed by the Fast Trucking Compliance team
- 11-Hour Driving Rule
- The 11-hour driving rule under 49 CFR §395.3(a)(3) caps the time a property-carrying CMV driver may spend driving in a single duty cycle at 11 hours, after a minimum 10 consecutive hours off duty. Driving time accrues only on the line-4 driving status; on-duty-not-driving time (line-3) does not reduce the 11-hour clock. The rule applies independently of the 14-hour on-duty clock — a driver could exhaust the 11-hour limit before the 14-hour limit if the 10-hour break occurred mid-shift. Passenger-carrying drivers run on a 10-hour limit instead. Violations are graded for severity based on hours over the limit.
- 14-Hour On-Duty Rule
- The 14-hour on-duty rule under 49 CFR §395.3(a)(2) prohibits a property-carrying CMV driver from driving after the 14th consecutive hour following the start of duty for that day. The 14-hour clock starts when the driver first goes on duty (whether driving or non-driving) and runs continuously through breaks; only a 10-hour off-duty period restarts it. The 2020 final rule introduced a sleeper-berth split exception (e.g., 7+3 or 8+2) that allows a qualifying break to pause the 14-hour clock. The 14-hour clock and the 11-hour driving clock run independently — a driver can exhaust either limit first.
- 2290 Suspended Vehicle (Category W)
- A 2290 Suspended Vehicle is a Category W vehicle reported on IRS Form 2290 that operates fewer than 5,000 miles (7,500 for agricultural vehicles) during the tax period. Suspended vehicles owe $0 HVUT but must still be filed on the 2290 return to receive a stamped Schedule 1. If the vehicle later exceeds the mileage threshold, the carrier must amend the return and pay the full HVUT for the period. The suspension election is made annually on the next tax period's 2290; mileage tracking through ELD or odometer logs is the documentation backstop in case of IRS audit.
- 34-Hour Restart
- The 34-hour restart under 49 CFR §395.3(c) lets a driver reset the 60- or 70-hour rolling on-duty clock by taking 34 consecutive hours off duty. The driver returns to full available hours after the restart. The 2017 budget bill removed the requirement that the restart include two 1-5 a.m. periods and the cap of one restart per week; today the restart can be taken as often as needed. Carriers should plan restarts strategically — using a restart unnecessarily early in the week can waste available driving hours, but waiting too long can leave the driver short on the back half of a multi-week run.
- 70-Hour / 60-Hour Rule
- The 70-hour and 60-hour rules under 49 CFR §395.3(b) cap the on-duty time a property-carrying CMV driver may accumulate over a rolling period — 60 hours in 7 consecutive days for carriers operating less than 7 days a week, or 70 hours in 8 consecutive days for carriers operating every day. The driver may "restart" the clock with 34 consecutive hours off duty under §395.3(c). A pattern of bumping the 70-hour ceiling without taking the restart triggers HOS Compliance BASIC violations during roadside inspections. Carriers should track the rolling-day total in dispatch software so loads aren't accepted that the driver cannot legally complete.
- AOBRD (Legacy)a.k.a. Automatic On-Board Recording Device
- AOBRD — Automatic On-Board Recording Device — is the legacy electronic logging technology that pre-dated the modern ELD mandate. AOBRDs were authorized under the old §395.15 and could record HOS data with looser technical requirements than today's ELDs (no engine-data feed mandate, fewer event types). The ELD Mandate phased AOBRDs out completely on December 16, 2019; carriers operating AOBRDs after that date were considered non-compliant unless they qualified for a specific exemption. The term still appears in regulatory history and on older fleet-management contracts. Modern systems (Samsara, KeepTruckin, Geotab, etc.) all ship as registered ELDs with full §395.8 compliance.
- Apportionable Vehicle
- An apportionable vehicle under the IRP is any power unit operated in two or more IRP member jurisdictions that meets the threshold of (1) two axles and gross weight over 26,000 pounds, (2) three or more axles regardless of weight, or (3) a combination weight over 26,000 pounds. Apportionable vehicles must be registered in the carrier's base jurisdiction with mileage reported per state for fee redistribution. Recreational vehicles, government vehicles, and certain farm and intrastate vehicles are excluded. The classification determines whether IRP plates are required versus operating under temporary trip permits.
- Apportioned Plate
- An apportioned plate is the registration tag issued under the International Registration Plan (IRP) that lets a single commercial vehicle operate legally in multiple US states and Canadian provinces with one license plate. The carrier registers in their base jurisdiction; the base jurisdiction collects fees and redistributes them to the other member jurisdictions in proportion to the miles traveled in each. Required for any qualified motor vehicle that crosses jurisdiction lines for hire — typically vehicles over 26,000 lbs gross weight or three-or-more-axle vehicles. Renewed annually; mileage data filed each year drives the next year's apportionment percentages.
- BASIC Scoresa.k.a. Behavior Analysis and Safety Improvement Categories
- BASIC stands for Behavior Analysis and Safety Improvement Categories — the seven measurement buckets FMCSA uses inside the Compliance, Safety, Accountability (CSA) program. Each bucket is scored as a percentile against carriers of similar size and operation, and high percentiles trigger interventions. The seven BASICs are Unsafe Driving, Crash Indicator, Hours-of-Service Compliance, Vehicle Maintenance, Driver Fitness, Controlled Substances and Alcohol, and Hazardous Materials Compliance. FMCSA only publishes percentiles for carriers flagged for intervention; private percentiles are visible inside the Safety Measurement System portal. Use BASIC trends to identify training and equipment investments that move the score down.
- BIPDa.k.a. Bodily Injury and Property Damage
- BIPD — Bodily Injury and Property Damage — is the primary liability insurance every for-hire motor carrier carries to cover third-party injury or property damage from a crash. FMCSA sets minimum BIPD limits under 49 CFR Part 387: $750,000 for general freight, $1,000,000 for oil hazmat, $5,000,000 for non-oil hazmat, and $5,000,000 for passenger carriers with 16 or more seats. The insurer files Form BMC-91 (or BMC-91X for hazmat) electronically with FMCSA L&I to satisfy the financial-responsibility requirement. A lapse triggers automatic authority deactivation; the 30-day cure window is tight.
- Blanket Process-Agent Coverage
- Blanket process-agent coverage is a single BOC-3 designation by which one process-agent service represents an interstate carrier in every US state and DC. Federal regulation 49 CFR §366 explicitly authorizes blanket designations through providers that maintain agents in all 50 states. For nearly every for-hire interstate carrier, blanket coverage is the practical choice — the alternative is filing 50 separate state-by-state designations. Blanket service is typically a one-time fee around $75 with no annual renewal as long as the carrier-agent relationship continues. A blanket BOC-3 stays valid until the carrier files a replacement or changes legal name.
- BMC-32
- BMC-32 is the FMCSA endorsement that adds cargo liability coverage to a motor carrier's primary BIPD policy. The federal minimum cargo limit is $5,000 per truck and $10,000 per occurrence under 49 CFR Part 387.303 — substantially below the actual replacement value of most loads. Most shippers and brokers contractually require $100,000 cargo limits or higher. The BMC-32 itself is filed by the insurer with FMCSA L&I; it is not a separate filing the carrier submits. It became more flexible in 2011 when FMCSA softened the broad-form cargo requirements but still applies for general-freight common carriers.
- BMC-34
- BMC-34 is the cargo-liability endorsement filed by an insurer under 49 CFR Part 387 to demonstrate that a household-goods motor carrier meets the federal minimum cargo coverage. The required limits are $5,000 per vehicle and $10,000 per occurrence. The BMC-34 is the older of two cargo endorsements (the BMC-32 is the general-commodities counterpart); both serve a similar regulatory purpose. Like other BMC filings, the carrier never personally submits the BMC-34 — the insurance company files it electronically with FMCSA L&I once binding has occurred. Brokers and freight forwarders use different BMC forms (BMC-84 surety bond or BMC-85 trust fund).
- BMC-91 / BMC-91X
- BMC-91 and BMC-91X are the FMCSA filings that prove a motor carrier carries the required primary liability insurance. BMC-91 covers general commodities; BMC-91X covers carriers transporting hazardous materials in bulk. The insurer (not the carrier) files the form electronically with FMCSA Licensing and Insurance once a primary policy is bound. The filing must list the federal minimum BIPD limit applicable to the cargo class. A 30-day notice of cancellation is required from the insurer; absent a replacement BMC-91, FMCSA automatically deactivates the carrier's MC authority. Brokers file BMC-84 (surety bond) or BMC-85 (trust fund) instead.
- BMC-91X
- BMC-91X is the FMCSA financial-responsibility filing the insurer files for hazmat motor carriers transporting hazardous materials in bulk. It mirrors BMC-91 but lists the higher hazmat liability limit ($1,000,000 for oil hazmat, $5,000,000 for non-oil hazmat) required under 49 CFR Part 387.9. The X suffix lets FMCSA Licensing & Insurance distinguish hazmat policies during automated validation. Like every BMC filing, only the insurer can submit it electronically — the carrier never personally files. A 30-day cancellation notice from the insurer triggers automatic authority deactivation if no replacement BMC-91X arrives in time. New hazmat applicants on Form OP-1 must list a BMC-91X-eligible insurer when filing for hazmat operating authority.
- BOC-3a.k.a. Designation of Process Agents
- BOC-3 is the FMCSA form that designates process agents in every state where an interstate motor carrier, broker, or freight forwarder operates. Required under 49 USC §13304 and 49 CFR Part 366. Without an active BOC-3 on file, MC authority cannot activate — the docket stays in NOT AUTHORIZED status indefinitely. Most carriers file a single blanket BOC-3 covering all 50 states plus DC through a process-agent service for around $75. The filing is one-time; refile only on legal-name change or to switch agents. The federal BOC-3 is unrelated to a state-level registered agent, which the LLC also needs.
- Cargo Insurance
- Cargo insurance is the policy that pays for shipper claims when freight in the carrier's custody is lost, damaged, or destroyed. The federal minimum under 49 CFR Part 387 is $5,000 per vehicle and $10,000 per occurrence for general-commodity common carriers, but the practical baseline is $100,000 per truck because most brokers and shippers contractually require it. Limits scale with commodity value: refrigerated produce loads commonly require $250,000, high-value electronics $500,000+. Cargo insurance is separate from BIPD (which covers third-party injury and property damage) and from non-trucking liability (which covers the truck during personal use). The insurer files BMC-32 with FMCSA when binding cargo coverage for a common carrier.
- CDLISa.k.a. Commercial Driver's License Information System
- CDLIS is the AAMVA-administered information system that links every state's commercial-driver licensing database. When a state issues, suspends, or revokes a CDL, the action is reported to CDLIS and visible to all other states. Carriers cannot pull CDLIS reports directly; the state DMV uses CDLIS to verify a driver's status during licensing transactions. Federal regulation 49 CFR §384.105 requires every state to participate. The CDLIS network prevents a CDL holder from holding licenses in multiple states or from licensing-shopping after a disqualification. Any pre-employment MVR pulled from a state DMV implicitly reflects CDLIS data.
- CDLIS Update
- A CDLIS update is the AAMVA-administered transmission of a CDL holder's licensing event — issuance, renewal, suspension, revocation, downgrade, or self-certification change — across the multi-state CDLIS network. Federal regulation 49 CFR §384.105 requires every state to send updates within 10 days of the event. Carriers see the downstream effect when running a state MVR — the report reflects CDLIS data even if the driver licensed in a different state. CDLIS-II integration (rolled out 2023-2025) added near-real-time transmission of Clearinghouse "prohibited" status, which now triggers automatic state-side downgrade in participating jurisdictions. Lag in CDLIS update is the most common cause of stale data on a pulled MVR.
- Common Carrier
- A common carrier is a for-hire motor carrier that holds itself out to the general public to transport regulated commodities for any shipper willing to pay published rates. Authorized under 49 USC §13902 and 49 CFR Part 365. Common carriers contrast with contract carriers (who haul under specific written contracts), private carriers (who haul their own goods), and exempt carriers (who haul agricultural or unprocessed commodities outside FMCSA economic regulation). New for-hire applicants typically choose common-carrier authority on Form OP-1 because it gives the broadest operating flexibility. The MC authority docket fee is $300 per type, and the same BOC-3 + insurance prerequisites apply.
- Compliance Review
- A compliance review is the on-site investigation FMCSA conducts under 49 CFR §385 to assess whether a carrier's safety management system meets the federal safety rating thresholds. Reviewers spend 1 to 5 days at the carrier's base of operations examining DQ files, HOS records, drug/alcohol program documents, vehicle maintenance records, and accident history. The review concludes with one of three safety-rating outcomes — Satisfactory, Conditional, or Unsatisfactory — that is then published on SAFER. Compliance reviews are typically triggered by elevated CSA BASIC percentiles, a serious accident, or a complaint from a driver, broker, or competitor.
- Conditional Rating
- A Conditional safety rating is the middle-tier outcome of an FMCSA compliance review under 49 CFR Part 385. It signals that the carrier's safety management system has identified deficiencies but is not so flawed as to warrant Unsatisfactory. Conditional carriers may continue interstate operations but face increased scrutiny, may be barred from hauling hazmat or passengers, and may have brokers reluctant to tender freight. Carriers can request an upgrade by submitting a corrective action plan; most return to Satisfactory within 90 days. A Conditional rating remains visible on SAFER until upgraded — fix the problems and request the upgrade quickly.
- Contract Carrier
- A contract carrier is a for-hire motor carrier that transports regulated commodities only under specific written contracts with named shippers. Authorized under 49 USC §13902 separately from common carriers. The contract requirement is enforced — FMCSA has revoked contract-carrier authority for carriers operating without bilateral written agreements. Most modern carriers file as common carriers because the operational flexibility is broader; the contract designation is reserved for dedicated-fleet relationships. Contract carriers face the same BOC-3, insurance, MCS-150, and UCR obligations as common carriers. The MC docket fee is $300, the same as common-carrier authority.
- Controlled Substances and Alcohol BASIC
- Controlled Substances and Alcohol is the CSA BASIC tracking driver-side violations of FMCSA drug and alcohol rules at roadside — primarily roadside post-accident testing failures and on-duty intoxication signs. The Drug & Alcohol Clearinghouse handles employer-side reporting separately. Violations in this BASIC carry the highest severity weights (10) because of the public-safety risk. Even a single violation can move a small carrier from clean status to alert threshold. Carriers should pair ELD/HOS compliance with a robust C/TPA-administered random-testing program and Clearinghouse-query workflow to keep this BASIC clean.
- Crash Indicator BASIC
- Crash Indicator is the CSA BASIC that measures a carrier's history of state-reportable crashes per power unit over the prior 24 months. Unlike most BASICs, Crash Indicator is non-public — only carriers can view their own percentile through the SMS portal. Severity weights factor in injury, fatality, and tow-away outcomes. FMCSA does not currently use Crash Indicator alone to trigger interventions because of fault-determination concerns, but the 2024-2025 SMS methodology updates re-introduce a fault-weighted version called the "preventability program" that adjusts for non-preventable crashes documented through DataQ.
- CSAa.k.a. Compliance, Safety, Accountability
- CSA — Compliance, Safety, Accountability — is FMCSA's safety-measurement program that scores motor carriers on their inspection, crash, and violation history. Carriers receive percentile rankings across seven Behavior Analysis and Safety Improvement Categories (BASICs). High percentiles trigger interventions ranging from warning letters to compliance reviews. CSA does not directly issue safety ratings — that comes from a compliance review — but the program drives FMCSA's decision about which carriers to investigate. Brokers and shippers also reference CSA scores during carrier qualification, so an above-threshold percentile can quietly cost loads even before regulators get involved.
- DataQ Challengea.k.a. Request for Data Review (RDR)
- DataQ is the FMCSA portal at dataqs.fmcsa.dot.gov where carriers and drivers can challenge inaccurate roadside-inspection violations and crash records. A successful DataQ challenge removes the violation from the carrier's SMS record, reducing the BASIC percentile impact. The 60-day filing window from the inspection date is firm; late submissions are rejected. Common winning grounds: incorrect carrier identification, factually wrong violation citation, video or photographic evidence contradicting the report, or a clearly non-preventable crash. Each state assigns a DataQ coordinator who reviews the submission. Outcomes typically take 30 to 90 days. Carriers should treat every roadside violation as a DataQ candidate and run the cost-benefit analysis quickly.
- Designated Agent
- Designated agent is the term FMCSA uses on the BOC-3 form for the natural person or business named to receive legal service in each listed state. The designation is binding on the carrier — service of process delivered to the designated agent is legally treated as service on the carrier itself. Most carriers use a blanket process-agent service that designates one agent in each of the 50 states plus DC under 49 CFR §366. The designation continues indefinitely until the carrier files a new BOC-3 with replacement agents. A change of legal business name requires a new designation.
- DOT Random Drug Test
- A DOT random drug test is the unannounced controlled-substance or alcohol test selected from a carrier's random-testing pool under 49 CFR §382.305. FMCSA sets the annual minimum random-testing rate each year (currently 50% for controlled substances and 10% for alcohol of average driver pool size). Selections must be statistically random, drawn evenly across the calendar year. Owner-operators who are simultaneously employer and driver cannot self-administer; they must enroll in a third-party Consortium / Third-Party Administrator (C/TPA). A driver selected for random testing must report to the collection site immediately — non-compliance is treated as a refusal to test, which is a Clearinghouse-reportable violation.
- DQ Filea.k.a. Driver Qualification File
- The Driver Qualification File (DQ file) is the set of documents 49 CFR §391.51 requires every motor carrier to maintain on every CDL driver. Required contents include the application, three-year MVR pull, three-year employment history check, road-test certificate, medical examiner's certificate, and annual review of driving record. Carriers must keep the file for the full duration of employment plus three years after termination. New-entrant audits routinely flag DQ-file gaps as the highest-frequency violation category. Carriers should automate DQ-file building during onboarding so every driver enters the dispatch pool with a complete, audit-ready file.
- Driver Disqualification
- A driver disqualification is the federal prohibition on driving a CMV imposed under 49 CFR §391.15 for serious offenses. The disqualification clock runs separately from any state-level CDL suspension. Examples: driving under the influence (1 year first offense, lifetime second), refusing a controlled-substance test (1 year first), leaving the scene of an accident in a CMV (1 year first), causing a fatality through negligent operation (1 year), and railroad-grade-crossing violations (60 days first offense). FMCSA tracks disqualifications through CDLIS; carriers must verify driver status through the state DMV before dispatch. A disqualified driver who continues to operate exposes the carrier to severe civil penalties under §391.15(c).
- Driver Fitness BASIC
- Driver Fitness is the CSA BASIC capturing driver-credential violations — invalid CDL, expired medical certificate, missing endorsement, lapsed self-certification. It is one of the lowest-volume BASICs but high-leverage: a single driver-fitness violation often signals a broader DQ-file gap that a compliance review will surface. Carriers with any Driver Fitness violation in the prior 12 months should run a full DQ-file audit on every driver. The 2024 Clearinghouse-II downgrade flow has driven Driver Fitness violations down nationally because state CDL agencies now automatically downgrade CDL status when a driver enters Clearinghouse "prohibited" — closing a previous gap.
- ELDa.k.a. Electronic Logging Device
- ELD — Electronic Logging Device — is the in-cab device that automatically records driver hours-of-service data under 49 CFR Part 395 subpart B. Required for most interstate CDL drivers since December 2017. The ELD must be on the FMCSA Registered ELD list, must integrate with the engine control module, and must produce a standard data file output that roadside inspectors can transfer for review. Short-haul exemptions exist for drivers operating within 150 air-miles and returning to the work-reporting location each day. Pre-2000 model-year vehicles may use paper logs. ELD violations are common at roadside inspections and feed the HOS BASIC.
- ELD Approved List
- The ELD Approved List is the FMCSA registry at fmcsa.dot.gov/registration/eldsta of every electronic logging device that has self-certified compliance with the §395.20 technical specifications. Carriers must use a listed device for any driver subject to the ELD mandate. FMCSA may revoke a device from the list if subsequent testing identifies non-compliance — a 2019-2020 wave of revocations forced thousands of carriers to scramble for replacements. Carriers should periodically check the list to ensure their deployed devices remain in good standing. Drivers should keep a copy of the ELD user manual, malfunction reporting instructions, and spare paper logs in the cab.
- ELD Mandate
- The ELD Mandate is the FMCSA rule under 49 CFR §395.8 requiring every CMV driver subject to the federal HOS rules to record duty status through an electronic logging device. Effective dates phased in: December 2017 for AOBRDs and paper logs to switch to ELDs, December 2019 for full elimination of grandfathered AOBRDs. Limited exemptions remain — short-haul drivers under §395.1(e), drivers operating model year 2000 or older trucks, drive-away/tow-away operations, and pre-2000-engine vehicles. The ELD must be self-certified to the FMCSA technical specification and registered on the FMCSA ELD Approved List. Drivers must keep the ELD user manual, malfunction instructions, and the prior 8 days of records in the cab during operations.
- ELDTa.k.a. Entry-Level Driver Training
- ELDT — Entry-Level Driver Training — is the curriculum and registry-based training requirement under 49 CFR §380 and §383.71 for first-time CDL applicants seeking Class A, Class B, or any of three endorsements (passenger, school bus, hazmat). Effective February 7, 2022. Drivers must complete theory and behind-the-wheel training from a registered training provider on the FMCSA Training Provider Registry before testing. Training providers must self-certify compliance with the federal curriculum standards. The TPR registry is searchable at fmcsa.dot.gov. ELDT applies to upgrade-CDL applicants and endorsement-add applicants too — not just first-time CDL holders.
- FHWAa.k.a. Federal Highway Administration
- FHWA — the Federal Highway Administration — is the US Department of Transportation agency responsible for federal highway infrastructure programs, motor carrier size and weight limits, and the national bridge inventory. FHWA is distinct from FMCSA: FHWA focuses on the road, FMCSA on the carrier. FHWA administers the size and weight limits codified in 23 CFR Part 658 — the 80,000-lb gross limit, 20,000-lb single-axle limit, and Federal Bridge Formula for axle spacing. State permit programs for oversize/overweight loads operate under FHWA's federal framework but are administered state-by-state.
- FMCSAa.k.a. Federal Motor Carrier Safety Administration
- FMCSA — the Federal Motor Carrier Safety Administration — is the US Department of Transportation agency that regulates commercial motor vehicle safety. Created by the Motor Carrier Safety Improvement Act of 1999, FMCSA inherited carrier-safety oversight from the Federal Highway Administration. Headquartered in Washington DC with field offices in every state. FMCSA issues USDOT and MC numbers, administers the Unified Registration System, runs the Drug & Alcohol Clearinghouse, oversees CSA scoring, conducts compliance reviews, and enforces 49 CFR Title 49 Subtitle B Chapter III. The day-to-day touchpoint for almost every motor-carrier compliance question.
- FMCSA Clearinghousea.k.a. Drug & Alcohol Clearinghouse
- The FMCSA Drug & Alcohol Clearinghouse is the federal database that tracks every drug and alcohol program violation by a CDL driver since January 2020. Carriers must query the Clearinghouse before hiring (full query) and annually thereafter (limited query) under 49 CFR §382.701. Drivers must register and consent to each query. Positive results, refusals to test, and return-to-duty actions are all reported. A driver with an unresolved Clearinghouse violation is prohibited from performing safety-sensitive functions. The Clearinghouse is the single source of truth for DOT drug program violations; pre-2020 violations remain with the prior employer's records.
- FMCSA Service Center
- FMCSA service centers are the four regional offices (Eastern in Baltimore, Southern in Atlanta, Midwest in Olathe KS, Western in Lakewood CO) that manage compliance reviews, new-entrant safety audits, and enforcement actions in their multi-state regions. Each service center supervises state-level FMCSA division offices and coordinates with state DOT enforcement partners. Carriers needing to escalate a DataQ challenge or appeal a safety rating typically contact the service center for the state in which the underlying incident occurred. The service center contact directory is published at fmcsa.dot.gov; phone-tree routing can take 10+ minutes during peak hours.
- For-Hire vs. Private
- For-hire and private describe two different motor-carrier classifications. A for-hire carrier transports passengers or property for compensation — they need MC operating authority under 49 USC §13902 in addition to a USDOT number. A private carrier transports its own goods incidental to a non-transportation business — they need only a USDOT (interstate) and pay no $300 MC fee. Both classes face the same FMCSA safety regulations including HOS, drug testing, and ELDs. The classification is set on the MCS-150 form and on the URS application. Misclassifying as "private" while hauling for hire is a common new-carrier mistake.
- Form 2290a.k.a. Heavy Highway Vehicle Use Tax Return
- Form 2290 is the IRS form used to report and pay the Heavy Vehicle Use Tax (HVUT) on trucks with a taxable gross weight of 55,000 pounds or more. Authorized by 26 USC §4481. Tax period runs July 1 through June 30; returns are due August 31 each year, or by the last day of the month following first use for trucks placed in service after July. Tax ranges from $100 to $550 per truck depending on gross weight. Vehicles operating fewer than 5,000 miles (7,500 for agricultural) are taxable but at zero — file as "suspended." Stamped Schedule 1 is required for IRP plate renewal in nearly every state.
- Form E
- Form E is the state-level proof-of-insurance filing used by state utility commissions and motor carrier divisions to track intrastate insurance compliance. Different from FMCSA's federal BMC-91. Form E is filed by the insurer with the state when an intrastate motor carrier procures a primary liability policy. About 30 states still require Form E for intrastate-only authority. Limits and procedures vary by state. Form H is the cargo counterpart for intrastate operations. Both are state filings — interstate carriers operate under federal BMC filings instead, and the same insurance policy can support both filings simultaneously when the carrier holds dual authority.
- Form H
- Form H is the state-level cargo insurance filing used by intrastate motor carriers to demonstrate cargo coverage to state utility commissions or motor carrier divisions. Companion to the Form E primary liability filing. Like Form E, Form H is filed by the insurer with the state on behalf of the carrier and remains active until the policy lapses or is canceled. Limits and procedures vary by state — California, Florida, Texas, and Illinois all maintain distinct intrastate cargo regimes. Interstate carriers do not file Form H; they rely on FMCSA BMC-32 or BMC-34 cargo endorsements as applicable.
- Form I (Cargo)
- Form I is the FMCSA cargo-liability surety filing that brokers and freight forwarders may use under 49 CFR §387.307 in lieu of cargo insurance for situations where the carrier itself is the broker for a regulated commodity. Form I is rarely used in modern operations because most insurers offer broader cargo policies through endorsements like BMC-32. The form survives in regulation primarily as a legacy option for niche specialty operations. Carriers should not confuse Form I (cargo) with Form E (also cargo, used by certain bonded warehouse and forwarder operations) or Form H (a separate FMCSA financial-responsibility filing covering household-goods movers).
- GCWRa.k.a. Gross Combination Weight Rating
- GCWR — Gross Combination Weight Rating — is the manufacturer-specified maximum operating weight of a power unit and its towed unit combined. Used to determine whether a Class A CDL is required: per 49 CFR §383.5, a Class A CDL is required when GCWR is 26,001 lbs or higher and the towed unit alone is over 10,000 lbs. GCWR is a manufacturer rating, not the actual loaded weight. The rating is stamped on the vehicle's federal certification label. Power units rated under 26,001 GCWR can still be used for combination towing of trailers under 10,000 lbs without a Class A CDL.
- GVWRa.k.a. Gross Vehicle Weight Rating
- GVWR — Gross Vehicle Weight Rating — is the maximum operating weight of a single vehicle as specified by the manufacturer. Determined at the factory and stamped on the vehicle's federal certification label. Different from gross weight (the actual weight on a given trip). Federal CDL thresholds in 49 CFR §383.5 are based on GVWR: a CDL is required for any single vehicle GVWR 26,001 lbs or higher, or any combination GCWR 26,001 lbs or higher when the towed unit is over 10,000 lbs. GVWR is also the cutoff for many state intrastate USDOT requirements. A truck whose GVWR is 26,000 lbs but whose actual weight regularly exceeds that is still under the CDL threshold.
- Hazardous Materials Compliance BASIC
- Hazardous Materials Compliance is the CSA BASIC that aggregates hazmat-specific violations — placard errors, shipping-paper omissions, package marking issues, and segregation violations under 49 CFR Parts 100-185. It applies only to carriers transporting hazardous materials in placardable quantities, so the data set is smaller than the other BASICs but the consequences are higher: a single hazmat violation can lead to immediate out-of-service orders and elevated PHMSA scrutiny. Carriers should run pre-trip hazmat document checks and ensure every driver holding the H-endorsement has completed the 49 CFR §172.704 security awareness refresher within the past three years.
- Hazmat (HM-126F)
- HM-126F is the federal training rule for hazardous-materials handlers — both employers and employees who load, unload, transport, prepare, mark, or document a hazmat shipment must complete general awareness, function-specific, safety, security awareness, and (for security-sensitive materials) in-depth security training. Codified at 49 CFR §172.704. Training must be repeated every three years. The hazmat carrier and any drivers involved with placardable shipments are subject. Records must include name, certification date, materials covered, and trainer information. Failure to train is a frequent compliance-review finding. Hazmat training is separate from the CDL hazmat (H) endorsement requirements.
- HOSa.k.a. Hours of Service
- HOS — Hours of Service — is the federal regulation under 49 CFR Part 395 limiting how long a CDL driver can spend driving and on duty. Property-carrying drivers are limited to 11 hours of driving within a 14-hour on-duty window, after 10 consecutive hours off-duty. The 60/70-hour rolling limit caps total on-duty time across any 7- or 8-day period. Passenger drivers face slightly different limits. Short-haul drivers operating within 150 air miles are subject to abbreviated HOS rules. HOS violations are a major driver of the HOS BASIC under CSA. ELDs automate HOS recordkeeping for most interstate CDL drivers.
- HOS Compliance BASIC
- Hours-of-Service Compliance is the CSA BASIC that aggregates HOS-related violations recorded at roadside inspections — most commonly false log entries, ELD malfunction or non-use, exceeded 11/14/70-hour limits, and inadequate sleeper-berth records. It is the highest-frequency violation category at roadside (about 30% of all citations). Severity weights run 1 to 10. Carriers with elevated HOS percentiles should focus on three remediation areas: ELD compliance verification, driver retraining on the 14-hour clock, and dispatcher training on load planning that respects available driving hours.
- HVUTa.k.a. Heavy Vehicle Use Tax
- HVUT — Heavy Vehicle Use Tax — is the federal annual tax under 26 USC §4481 paid via IRS Form 2290 on highway vehicles with a taxable gross weight of 55,000 pounds or more. The maximum tax is $550 per truck per year (for vehicles over 75,000 lbs gross weight). Tax period runs July 1 through June 30. The IRS-stamped Schedule 1 receipt is required to register the truck with most state IRP offices. HVUT funds the federal Highway Trust Fund along with diesel fuel tax. Vehicles operating fewer than 5,000 miles per tax period (7,500 for agricultural) are filed as "suspended" with $0 tax owed.
- IFTAa.k.a. International Fuel Tax Agreement
- IFTA — International Fuel Tax Agreement — is the multi-jurisdictional tax-collection agreement among 48 US states and 10 Canadian provinces under which a single fuel-tax license issued by the carrier's base jurisdiction satisfies the fuel-tax obligations in all member jurisdictions. Carriers file quarterly returns reporting miles and fuel by jurisdiction; the base state computes net redistribution. Required for any qualified motor vehicle (over 26,000 lbs gross, or 3+ axles) operating in two or more IFTA jurisdictions. Quarterly returns due Apr 30, Jul 31, Oct 31, Jan 31. License renewal annual. Decals must be displayed on both sides of the cab.
- IFTA Audit
- An IFTA audit is the periodic review every base jurisdiction must perform on a portion of its IFTA licensees under the IFTA Audit Manual. Auditors verify reported miles per jurisdiction against original source documents (driver trip sheets, ELD logs, dispatch records, fuel receipts) for a sample period — typically four consecutive quarters. Findings can result in additional tax assessments, penalty, and interest; major discrepancies can trigger a multi-year look-back. The 4% audit-coverage requirement under the Articles of Agreement means most carriers will face an IFTA audit eventually. Carriers should retain trip and fuel records for at least four years from the filing date even though IFTA itself only requires four quarters of working-paper preservation.
- IFTA Base Jurisdiction
- The IFTA base jurisdiction is the single state or province where a carrier is licensed under the International Fuel Tax Agreement. Selection criteria require that the carrier (1) maintains operational control and records, (2) accrues mileage in the jurisdiction, and (3) has at least one qualified motor vehicle registered there. The base jurisdiction issues the IFTA license and decals, processes quarterly returns, and audits the carrier on behalf of the entire 58-jurisdiction agreement. A carrier may have only one IFTA base jurisdiction at any time. Changing base jurisdictions requires notifying both the old and new jurisdictions during a transition window.
- IFTA Decal
- An IFTA decal is the small adhesive sticker each IFTA-licensed qualified motor vehicle must display on both lower exterior cab doors during the registration year. The base jurisdiction issues two decals per vehicle when the IFTA license is granted under 49 CFR §367 and the IFTA Articles of Agreement. The license itself is the primary credential, but roadside enforcement uses the visible decal to confirm registration before scrutinizing the cab card. Decals expire December 31 each year; carriers may operate on the prior-year decal during a one-month grace period (Jan 1 to Jan 31) if renewal is pending. A missing decal can lead to a temporary fuel-tax bond requirement and roadside fines.
- IFTA Quarterly Return
- The IFTA quarterly return is the consolidated tax return every IFTA licensee files with the base jurisdiction four times a year, due the last day of the month following the quarter close (April 30, July 31, October 31, January 31). The return reports total miles run per jurisdiction and total fuel purchased per jurisdiction; the base jurisdiction computes net tax owed or refund due using each jurisdiction's rate matrix and apportions payments to the other jurisdictions. Late-filed returns trigger penalty and interest under IFTA §R1230, and chronic late filing can lead to license revocation. Most carriers file electronically through the base jurisdiction's e-services portal or via TPA-integrated software like KeepTruckin, Samsara, or a dedicated IFTA filing service.
- IFTA Tax Rate
- An IFTA tax rate is the per-gallon fuel-tax rate each IFTA member jurisdiction publishes quarterly under the IFTA Articles of Agreement. Rates can vary by fuel type (diesel, gasoline, biodiesel, LNG, CNG, propane, methanol, ethanol). The IFTA processing center at iftach.org publishes the consolidated rate matrix every quarter; carriers and software vendors download the matrix to compute net tax-due on the quarterly return. Rates change frequently — Q4 2025 saw shifts in 14 jurisdictions, primarily for LNG and CNG. Using a stale rate matrix is one of the most common IFTA quarterly-return errors and can trigger assessment letters during audit.
- IRPa.k.a. International Registration Plan
- IRP — International Registration Plan — is the multi-jurisdictional registration agreement under which a carrier obtains apportioned license plates from the carrier's base jurisdiction that authorize operation throughout 48 US states, DC, and 10 Canadian provinces. Fees are apportioned among the member jurisdictions based on actual or estimated mileage. Required for any apportionable vehicle over 26,000 lbs gross, or any 3-axle vehicle, or combination over 26,000 lbs operating in two or more jurisdictions. Renewed annually with audited mileage report. Pairs with IFTA — most carriers file both with the same base state. Stamped Form 2290 Schedule 1 is required for IRP renewal.
- IRP Apportionment
- IRP apportionment is the calculation by which IRP fee revenue is divided across member jurisdictions based on the percentage of total fleet miles operated in each. The base jurisdiction collects the full annual fee from the carrier, then redistributes the proportional share to each other IRP jurisdiction. Apportionment uses the prior-year mileage report as the basis (with a special "estimated mileage" formula for first-year carriers). Carriers that operate exclusively in one state can register in that state under their own non-IRP system; only multi-state operators need apportioned plates. Mid-year jurisdiction additions trigger supplemental apportionment recalculation through the base jurisdiction's IRP module.
- IRP Audit
- An IRP audit is the periodic compliance review the base jurisdiction performs on IRP registrants under the IRP Audit Manual. Auditors verify mileage reported by jurisdiction against driver trip records, ELD logs, fuel receipts, and dispatch documents. Findings result in retroactive fee adjustments, penalties, and interest. Each IRP jurisdiction must audit at least 3% of its registrants annually — combined with the 4% IFTA audit minimum, most multi-state carriers will see an IRP and an IFTA audit within a 5-year window. Source documents must be retained for the current registration year plus three preceding years (four years total) under IRP §1015.
- IRP Cab Card
- An IRP cab card is the document that lists every IRP jurisdiction in which a power unit is registered along with the registered weight in each. The base jurisdiction issues a cab card for each apportioned vehicle when the IRP application is processed; the carrier must keep the original cab card in the cab and produce it during a roadside inspection. The cab card is the operational proof of apportioned registration in that the apportioned plate alone does not show which jurisdictions are active or at what weight. Cab cards are reissued each registration year and reflect all weight increases or jurisdiction additions filed mid-year through supplemental applications.
- IRP Recordkeeping
- IRP recordkeeping is the carrier-side paperwork obligation under IRP §1015 to preserve enough evidence to reconstruct fleet miles by jurisdiction for the registration year plus three preceding years. Acceptable records include individual vehicle distance records (IVDRs) — driver trip sheets or ELD-generated state-line crossings — supplemented by fuel receipts and dispatch logs. Records must be maintained at the carrier's base of operations and produced on demand for an IRP audit. Inadequate records lead the auditor to assess fees using the highest jurisdiction rate as a punitive default. Modern ELDs that capture state-line crossings automatically simplify compliance dramatically; manual trip sheets still satisfy the rule when the data is consistent.
- Lease Agreement (49 CFR 376)
- A 49 CFR Part 376 lease agreement is the federally regulated written contract under which an authorized motor carrier (the lessee) leases equipment from an owner-operator or other entity (the lessor) and operates that equipment under the carrier's MC authority. Required elements under §376.12 include exclusive possession, identification of equipment, settlement terms, charge-back disclosures, and insurance allocations. The lease must be in writing, signed by both parties, and a copy must be carried in the equipment along with the carrier's authority documents. Owner-operators leased on under 49 CFR 376 operate as independent contractors but the carrier remains the regulated entity.
- MC Numbera.k.a. Motor Carrier Number, Operating Authority
- An MC number — Motor Carrier number — is the operating authority docket FMCSA issues to for-hire motor carriers, brokers, and freight forwarders. Required by 49 USC §13902 for interstate transportation of regulated commodities or passengers. The MC number is distinct from the USDOT number (which is the safety identifier) and costs $300 per authority type to file. A carrier may hold common-carrier, contract-carrier, broker, and freight-forwarder MC dockets, each requiring a separate filing fee. The MC docket activates only after the BOC-3 and BMC-91 (or BMC-84 for brokers) are on file with FMCSA L&I.
- MCS-150a.k.a. Motor Carrier Identification Report
- MCS-150 is the FMCSA Motor Carrier Identification Report that every USDOT holder must update every 24 months under 49 CFR §390.19. Free to file. Contents include carrier operation type, power-unit count, driver count, cargo classification, and annual mileage. The biennial schedule is determined by the next-to-last digit of the USDOT and the file-update month corresponds. Missing the deadline triggers FMCSA deactivation; reinstatement requires payment ($275+) and refiling. There is no automatic agency reminder. The MCS-150 also exists in form MCS-150B (combined hazmat) and MCS-150C (intrastate hazmat) variants where applicable.
- MCS-150B
- MCS-150B is the combined Motor Carrier Identification Report and Hazardous Materials Safety Permit application filed by carriers who transport certain placardable hazardous materials in interstate commerce. Required under 49 CFR §390.19 alongside the standard MCS-150 filing schedule. The Hazardous Materials Safety Permit application piece (Form MCSA-1) was previously a separate submission but is now integrated into the MCS-150B for hazmat carriers. Permit categories are tied to specific hazardous-materials classifications including radioactive Class 7 highway-route-controlled, certain explosives, methane LNG, and toxic by inhalation. Renewal cycle is biennial like the standard MCS-150.
- Medical Review Officer (MRO)a.k.a. MRO
- A Medical Review Officer is a licensed physician trained and certified to interpret and report DOT drug-test results under 49 CFR §40.121. The MRO receives lab results, contacts donors with non-negative findings to inquire about legitimate prescriptions, and issues the final reportable result to the carrier and Clearinghouse. The MRO is a critical buffer between the testing laboratory and the carrier — a positive lab result is not automatically a positive DOT test until the MRO completes the verification process. Owner-operators using a C/TPA do not select their own MRO; the C/TPA contracts with an MRO. Carriers should confirm the MRO is certified by AAMRO, MROCC, or another approved body.
- MVRa.k.a. Motor Vehicle Record
- An MVR — Motor Vehicle Record — is a driving-history report obtained from a state Department of Motor Vehicles. Carriers must obtain a three-year MVR from each state where a CDL applicant has held a license under 49 CFR §391.23(a)(1) and pull an annual MVR thereafter under §391.25. The MVR shows license status, suspensions, restrictions, endorsements, and traffic convictions. State MVRs are integrated through CDLIS so any cross-state CDL data appears regardless of which state issued the report. Distinct from the FMCSA Pre-Employment Screening Program (PSP) report, which shows roadside inspections and crashes.
- MVR Re-Pull (Annual)
- An MVR re-pull is the annual review of a driver's motor vehicle record required by 49 CFR §391.25. The carrier must obtain the MVR from each state where the driver held a license during the prior 12 months and review it for new convictions, suspensions, or other events that would disqualify the driver. The review must be documented in the DQ file with a written certification that the carrier has examined the record. Many carriers run the re-pull on the driver's anniversary date; others batch annually in January. New-entrant audits frequently flag missing or stale annual MVR re-pulls as the second-highest DQ-file violation category.
- New Entrant
- New Entrant is the FMCSA designation under 49 CFR Part 385 for any motor carrier in the first 18 months after authority activation. New entrants undergo a Safety Assurance Program that culminates in a state-conducted safety audit roughly 12 months in. Passing the audit allows the carrier to transition to permanent authority; failing it can extend the period or trigger revocation. The new-entrant designation is visible on SAFER and is sometimes used by brokers to apply additional scrutiny during carrier qualification. Drug program enrollment, DQ files, hours-of-service records, vehicle maintenance, accident register, and insurance must all be in order at the audit.
- Non-Trucking Liability (NTL)a.k.a. NTL, Bobtail Insurance, Deadhead Coverage
- Non-Trucking Liability (NTL) is the optional coverage that pays for liability and physical damage when an owner-operator is using the truck for personal purposes — driving home from a terminal, running errands during off-duty time, or hauling a non-revenue load. It fills the gap left by the motor carrier's primary BIPD policy, which only responds while the truck is in dispatched service for the carrier. Most leased owner-operators are required by their motor-carrier lease agreement to carry NTL; the typical limit matches the carrier's BIPD ceiling. NTL is also called bobtail or deadhead insurance, although purists distinguish bobtail (no trailer) from deadhead (empty trailer) — NTL covers both situations.
- OOS / Out-of-Service Order
- An Out-of-Service Order (OOS) under 49 CFR Part 396 prohibits a driver or vehicle from operating until a specific safety condition is corrected. Issued at roadside inspections by certified inspectors using the North American Standard Out-of-Service Criteria. Vehicle OOS conditions include critical mechanical defects (brake violations, tire wear, lighting); driver OOS conditions include hours-of-service violations and license issues. OOS rates feed the CSA scoring system; persistently high rates trigger interventions. Violation of an active OOS order is a federal crime under 49 USC §521 and carries minimum civil penalties starting at thousands of dollars per violation.
- Operating Authority
- Operating authority is the federal grant under 49 USC §13902 that permits a for-hire motor carrier, broker, or freight forwarder to provide regulated transportation services in interstate commerce. Granted by FMCSA in the form of an MC number docket. Multiple authority types exist: common carrier, contract carrier, broker, freight forwarder, and household-goods motor carrier. Each costs $300 to file. Operating authority activates 21 days after FMCSA receives the BOC-3 and required insurance filings, plus a 10-day public protest period. Without operating authority, an interstate for-hire carrier cannot legally haul regulated commodities or accept loads.
- Owner-Operator
- An owner-operator is a CDL driver who owns or leases their own commercial vehicle and either runs under their own MC authority or leases on to a motor carrier under a 49 CFR Part 376 lease. Treated as an independent contractor for federal income-tax purposes (1099 / Schedule C). Responsible for fuel, maintenance, physical damage insurance, and (when running own authority) primary liability and cargo insurance. Owner-operators with their own authority must enroll in a third-party drug and alcohol consortium under 49 CFR §382.103. The category contrasts with a W-2 company driver who operates under the carrier's authority and equipment.
- Personal Conveyance
- Personal conveyance is the ELD duty-status category that lets a driver use the CMV for personal off-duty travel without consuming HOS clock hours. FMCSA guidance (FMCSA-2018-0066) clarifies acceptable uses: traveling from a load site to a residence, terminal, or short-term lodging; running personal errands during off-duty time. Unacceptable uses include moving the truck to advance toward a delivery, repositioning toward the next load, or any movement that benefits the carrier's business operations. Misuse of personal conveyance is one of the most common ELD-related violations cited at roadside; carriers should document training in the DQ file and audit ELD records monthly for suspect patterns.
- PHMSAa.k.a. Pipeline and Hazardous Materials Safety Administration
- PHMSA — the Pipeline and Hazardous Materials Safety Administration — is the US Department of Transportation agency that writes the federal hazardous-materials regulations codified at 49 CFR Parts 100–185. PHMSA regulates classification, packaging, marking, labeling, placarding, shipping papers, and emergency response. Motor-carrier hazmat operations are regulated jointly by PHMSA (the materials side) and FMCSA (the carrier side). PHMSA also oversees pipeline safety. The hazmat regulations include the Hazardous Materials Table at 49 CFR §172.101, the packaging specifications at Part 178, and the training requirements at §172.704.
- Post-Accident Test
- A post-accident test is the FMCSA-mandated controlled-substance and alcohol test required after a CMV accident meeting the §382.303 thresholds — a fatality, an injury requiring immediate medical treatment away from the scene, or a tow-away of any vehicle from the scene combined with a citation issued to the CMV driver. The alcohol test must be administered within 8 hours; the controlled-substance test within 32 hours. A driver who refuses or cannot be tested within those windows is treated as a positive (refusal to test) and reported to the Clearinghouse. Carriers must document why the test could not be performed if the windows are exceeded.
- Pre-Employment Drug Test
- A pre-employment drug test is a controlled-substance test the motor carrier must administer to every CDL applicant before allowing the driver to perform safety-sensitive functions, under 49 CFR §382.301. The test must screen for marijuana, cocaine, opiates, phencyclidine, and amphetamines (including methamphetamine and MDMA) using a 5-panel urine specimen. The carrier must also run a Clearinghouse full query under §382.701(a) before the first dispatch. A negative result must be received before the driver can be released for over-the-road duty; positive results, refusals, or substituted specimens move the driver into Clearinghouse "prohibited" status.
- Process Agent
- A process agent is the natural person or business named on a BOC-3 designation under 49 USC §13304 to receive legal service on behalf of an interstate motor carrier in a specific state. Federal regulation 49 CFR §366 requires designation in every state where the carrier operates. Most carriers use a blanket service that designates one process agent in each of the 50 states plus DC. The process agent's sole authority is to accept legal service — not to file, modify, or transact on the carrier's behalf. Process agent service is distinct from a state-level registered agent (which is required of LLCs and corporations under state corporate law).
- PSPa.k.a. Pre-Employment Screening Program
- PSP — Pre-Employment Screening Program — is the FMCSA service that allows motor carriers to obtain five years of crash data and three years of roadside inspection data on a CDL applicant. The data comes from the FMCSA Motor Carrier Management Information System. Distinct from a state DMV MVR pull, which only shows license status and convictions. PSP is voluntary at hire — strongly recommended by FMCSA but not mandated by 49 CFR §391. Cost is $10 per individual report. Driver consent is required. The data complements the MVR; together they give a complete picture for hiring decisions.
- Qualified Motor Vehicle
- A qualified motor vehicle under the IFTA Articles of Agreement is a power unit used, designed, or maintained for the transportation of persons or property that has (1) two axles and a gross vehicle or registered weight over 26,000 lbs, (2) three or more axles regardless of weight, or (3) when used in combination, a combined gross weight over 26,000 lbs. The same threshold applies under the International Registration Plan. Recreational vehicles, government vehicles, and certain school and farm vehicles are excluded. The classification is the trigger for both IFTA fuel-tax licensing and IRP apportioned plate registration when crossing jurisdiction lines.
- Reasonable Suspicion Test
- A reasonable-suspicion test is a controlled-substance or alcohol test administered when a trained supervisor observes specific articulable behavior or appearance suggesting drug or alcohol use, under 49 CFR §382.307. The supervisor must have completed two hours of training on the signs and symptoms of drug and alcohol use (one hour each topic). Observations must be documented in writing within 24 hours. The driver must report immediately to the collection site. A reasonable-suspicion test that comes back positive moves the driver into Clearinghouse "prohibited" status the same way a random or pre-employment positive does. Carriers without a documented supervisor-training program cannot lawfully order a reasonable-suspicion test.
- Return-to-Work (RTW) Processa.k.a. RTW, Return-to-Duty
- The Return-to-Work (RTW) — also called Return-to-Duty (RTD) — process is the regulatory pathway under 49 CFR §40.305 that lets a driver who tested positive or refused a DOT test return to safety-sensitive functions. The driver must (1) complete a SAP evaluation, (2) complete the SAP-prescribed education or treatment program, (3) pass a SAP follow-up evaluation, (4) pass a return-to-duty observed test, and (5) complete the SAP-prescribed follow-up testing plan. The Clearinghouse tracks each step automatically. Carriers hiring a driver currently in the RTW process should confirm Clearinghouse status — drivers in active RTW are not yet eligible for safety-sensitive duty until step 4 is complete.
- Roadside Inspection
- A roadside inspection is the on-the-spot check a state law-enforcement officer or FMCSA-certified inspector performs on a commercial vehicle and its driver during interstate operations, governed by 49 CFR §396 and the CVSA North American Standard. CVSA defines six inspection levels — Level I (full vehicle plus driver) is the most thorough; Level III (driver-only) is the most common at scale stops. Violations identified during a roadside inspection are recorded with severity weights into FMCSA SMS, where they roll up into CSA BASIC percentiles within 30 days. Carriers should request the inspection report immediately, review for accuracy, and DataQ-challenge any errors within the 60-day window.
- SAFERa.k.a. Safety and Fitness Electronic Records
- SAFER — Safety and Fitness Electronic Records — is the public FMCSA database at safer.fmcsa.dot.gov that publishes carrier and driver safety information. SAFER serves as the front door for brokers, shippers, and the general public to look up a carrier's USDOT number, MC docket, operating authority status, insurance status, safety rating, and aggregate inspection statistics. Detailed CSA percentile data lives in the separate SMS portal. Authority changes (activation, deactivation, revocation) appear on SAFER within 24 to 48 hours of FMCSA processing. Brokers and shippers run automated SAFER pulls during carrier qualification — keeping the SAFER record clean is a baseline business requirement.
- Safety Audit
- A safety audit is the on-site review FMCSA or state-partner investigators conduct of a motor carrier's safety management system. Two flavors: the New Entrant Safety Audit during the first 18 months of operation under 49 CFR §385.305, and the full Compliance Review for established carriers under §385.7. Audits inspect MCS-150 currency, insurance, drug and alcohol program, driver-qualification files, hours-of-service records, vehicle maintenance, and accident register. Failing the new-entrant audit can extend the new-entrant period or revoke authority; failing a compliance review can result in a Conditional or Unsatisfactory rating. Audits are scheduled by mail with a window for document preparation.
- Safety Measurement System (SMS)a.k.a. SMS, FMCSA SMS Portal
- Safety Measurement System (SMS) is the FMCSA portal at ai.fmcsa.dot.gov where carriers can view their CSA percentile scores across the seven BASIC categories. Public-facing SMS shows only a subset of data; carriers logging in with their PIN see full inspection history, crash data, and individual violation severity weights. SMS data updates monthly when FMCSA reprocesses the prior 24 months of inspections. Brokers and shippers also pull SMS data during carrier qualification — a single roadside inspection violation can move a small carrier into the alert threshold for a BASIC. Carriers should monitor SMS monthly and use DataQ to challenge incorrect violations within 60 days.
- Self-Certification (Driver Category)
- Self-certification is the process under 49 CFR §383.71 by which a CDL holder declares the type of operation they conduct — non-excepted interstate (NI), excepted interstate (EI), non-excepted intrastate (NA), or excepted intrastate (EA). The self-certification determines whether the driver must submit a current DOT medical examiner certificate to the state CDL agency. NI drivers must keep the medical card on file with the state at all times; failure to maintain a valid medical certificate is the most common cause of CDL "downgrade" actions. Drivers must update self-certification when their operation type changes (e.g., a regional driver moving to a hazmat-only intrastate role).
- Single-State Permit
- A single-state permit is a state-level operating registration required by certain states beyond the federal UCR program. Examples include the New York Highway Use Tax (HUT) for trucks 18,000+ lbs, the Kentucky KYU number for 60,000+ lbs, the New Mexico Weight Distance Tax for 26,000+ lbs, the Oregon Weight-Mile Tax for 26,000+ lbs, the Connecticut Highway Use Fee for 26,000+ lbs, and the Massachusetts DPU. Each state administers its own permit application, fees, and reporting cadence. Operating without the required permit can result in roadside out-of-service orders. Use a state permit calculator to identify which states' permits apply to your fleet.
- Sleeper-Berth Provision
- The sleeper-berth provision under 49 CFR §395.1(g) lets a CMV driver split the required 10-hour off-duty period into two qualifying segments, neither of which counts against the 14-hour driving window. Acceptable splits include 8+2, 7+3, or any combination where one segment is at least 7 hours in the sleeper berth and the other at least 2 hours off duty (or in the sleeper berth). The 2020 HOS final rule also created the "qualifying break" — a 30-minute non-driving break that satisfies the §395.3(a)(3)(ii) break requirement. Drivers using the split must ensure the second segment's start time appears on the ELD record correctly.
- Substance Abuse Professional (SAP)a.k.a. SAP
- A Substance Abuse Professional is a licensed counselor or social worker qualified under 49 CFR §40.281 to evaluate a driver who has tested positive (or refused) and prescribe an education and treatment program for return-to-duty. The SAP is the gatekeeper of the Clearinghouse return-to-duty pathway — the driver must complete the SAP-prescribed program, receive a written follow-up testing plan, and pass a return-to-duty test before resuming safety-sensitive functions. The follow-up testing plan typically runs at least 6 unannounced tests in the first 12 months and may continue up to 5 years. Carriers cannot select the SAP; the driver chooses one from the Clearinghouse-vetted list and pays out-of-pocket.
- Trip Permit
- A trip permit is a short-duration authorization that lets a commercial vehicle operate in a state where the carrier does not hold IFTA, IRP, or single-state operating credentials. Issued under each state's own statute (commonly modeled on the IRP Plan), trip permits typically run 72 to 120 hours and cost $20 to $40 per state. Carriers use trip permits to handle a single irregular load through a non-base jurisdiction without adding the state to their full IRP/IFTA registration. Most state DMVs issue trip permits through wire services or web portals before the trip begins. Operating without IRP/IFTA credentials and without a trip permit triggers an automatic out-of-service order at the first scale stop.
- TSAa.k.a. Transportation Security Administration
- TSA — Transportation Security Administration — administers the security threat assessment required for the CDL hazmat (H) and combined tanker/hazmat (X) endorsements. Drivers seeking the H or X endorsement must submit fingerprints, biographical information, and pay the TSA fee. Background check covers criminal history, immigration status, and certain other disqualifying factors under 49 CFR §1572. Processing typically takes 30–60 days. TSA also runs adjacent transportation-worker programs including TWIC for port access and HME (Hazmat Materials Endorsement) renewals every 5 years. Non-citizens and applicants with disqualifying convictions may be denied even with state-level CDL approval.
- UCRa.k.a. Unified Carrier Registration
- UCR — Unified Carrier Registration — is an annual registration program administered by the Unified Carrier Registration Plan under 49 USC §14504a and 49 CFR Part 367. Every for-hire and private interstate motor carrier, broker, and freight forwarder pays a fee scaled by fleet size to their base state. The 2026 fee tiers range from Bracket 1 (~$46 for 0–2 vehicles) to Bracket 6 (~$44,639 for 1,001+ vehicles). The registration year matches the calendar year, with December 31 as the deadline. Enforcement begins January 1 — out-of-service orders can issue at weigh stations against carriers without active UCR registration.
- Unsafe Driving BASIC
- Unsafe Driving is one of the seven CSA Behavior Analysis and Safety Improvement Categories under 49 CFR §385. Violations include speeding, reckless driving, improper lane change, inattention, and seatbelt non-use. Unsafe Driving is one of two BASICs (the other is Crash Indicator) where high percentiles directly threaten broker placement — major brokers run automated kick-outs at the 65th-percentile threshold for hazmat carriers and 90th for general freight. Severity weights for Unsafe Driving violations range from 1 (minor) to 10 (major); the weight scales with relevance to crash risk. Carriers with elevated Unsafe Driving percentiles should run targeted driver-by-driver review and consider speed limiters as a remediation step.
- Unsatisfactory Rating
- An Unsatisfactory safety rating is the most severe outcome of an FMCSA compliance review under 49 CFR Part 385. It signals that the carrier's safety management system is so deficient that continued operation is contrary to public safety. An Unsatisfactory rating triggers automatic OOS orders for hazmat or passenger transportation; for general freight, the carrier has up to 60 days to upgrade or operations cease. Cure requires submission of a Safety Management Plan and rating upgrade request. An Unsatisfactory rating is published on SAFER and is essentially a death warrant for broker and shipper relationships until upgraded.
- USDOT Numbera.k.a. DOT Number, US DOT Number
- The USDOT number is the permanent federal safety identifier FMCSA assigns to a motor carrier under 49 CFR Part 390. Free to apply for through the Unified Registration System. Required for any commercial vehicle operating in interstate commerce above the GVWR thresholds, for hazmat-placardable shipments at any weight, and for 9+ passenger commercial vehicles for hire. Many states also require a USDOT for in-state CDL operations. The USDOT number stays with the carrier for life and is the primary key for the FMCSA safety record. Distinct from the MC number, which is a separate operating authority docket required for for-hire interstate carriers.
- Vehicle Maintenance BASIC
- Vehicle Maintenance is the CSA BASIC tracking equipment-related violations identified during roadside inspections — brakes, tires, lights, exhaust, coupling devices, and frame issues. It is consistently among the top three violation categories nationally. Severity weights run 1 to 10. The BASIC is heavily influenced by equipment age and pre-trip inspection discipline. Carriers with elevated Vehicle Maintenance percentiles should standardize a pre-trip checklist (paired with the DVIR) and run quarterly fleet-wide preventive-maintenance audits. Investments in newer trailers and tractors typically pay off in measurable Vehicle Maintenance percentile reduction within two refresh cycles.
- Yard Move
- Yard move is a specific ELD duty-status category under 49 CFR §395.8(a) that lets a driver move a CMV inside a private property (yard, terminal, dock area) without accruing driving time on the 11-hour or 14-hour clock. The carrier must enable yard-move authorization in the ELD configuration; the driver selects yard-move on the ELD before starting the move. The status reverts to driving automatically once the truck exceeds the configured speed threshold (typically 20 mph) or leaves the geofenced yard. Yard-move misuse — selecting it for over-the-road movement — is a high-severity violation flagged during roadside inspections.