Do I need a DOT background check?
Driver screening depends on the vehicle, whether the role requires a CDL, and whether the trip is interstate. See which federal inquiries apply and what needs a separate state review.
Short answer
Which driver screening steps does FMCSA require?
For a covered interstate commercial motor vehicle driver, federal driver-qualification rules call for licensing-record and prior-employer safety inquiries whether or not a CDL is required. Federal Part 382 drug testing and the FMCSA Clearinghouse query generally attach to CDL-required, covered safety-sensitive driving — not every 10,001-pound vehicle. For CDL-required intrastate work, Part 382 may still apply; check the state's intrastate qualification rules separately. Confirm exceptions and actual duties with motor-carrier counsel.
Example results
These scenarios are fictional. Each result below is what the tool returns for those exact inputs.
Interstate CDL-required tractor-trailer
Inputs
- • Interstate CMV: Yes
- • CDL required: Yes
- • Interstate commerce: Yes
Result
Interstate CMV · CDL required
The result lists Part 391 qualification inquiries separately from Part 382 drug testing and the Clearinghouse query. PSP is optional.
Interstate non-CDL box truck
Inputs
- • Interstate CMV: Yes
- • CDL required: No
- • Interstate commerce: Yes
Result
Interstate CMV · no CDL required
The result lists prior-employer safety and applicable drug/alcohol history inquiries but not Part 382 testing or the Clearinghouse query.
Intrastate CDL-required driver
Inputs
- • Interstate CMV: Yes
- • CDL required: Yes
- • Interstate commerce: No
Result
Intrastate · CDL required
The result separates the federal CDL-related testing and Clearinghouse steps from qualification and inquiry rules to confirm with the state.
Intrastate non-CDL box truck
Inputs
- • Interstate CMV: Yes
- • CDL required: No
- • Interstate commerce: No
Result
Intrastate · no CDL required
The tool defers intrastate driver qualification and screening to a state-law review rather than assigning interstate Part 391 requirements.
How the tool works
- • The tool classifies three answers: whether the vehicle meets the interstate CMV definition in § 390.5; whether this role requires a CDL under Part 383; and whether the work is interstate commerce. It does not use a job title or an arbitrary weight alone to determine coverage.
- • If the vehicle is an interstate CMV, it lists Part 391 qualification inquiries for interstate operations. For non-CDL drivers it includes the applicable direct prior-DOT-employer drug/alcohol inquiry under § 391.23(e); it does not assign Part 382 testing or Clearinghouse queries by vehicle weight alone.
- • If a CDL is required, the tool separately lists Part 382 pre-employment testing and Clearinghouse queries, including for intrastate covered safety-sensitive driving. For intrastate roles it directs the user to check state-specific qualification rules rather than treating federal interstate Part 391 as a nationwide intrastate rule.
Limits and exclusions
- • The tool is a screening aid, not a complete legal coverage determination. Passenger and hazardous-material categories, exceptions (including farm, military and government operations), carrier status, and actual job duties require individual review.
- • It does not identify any particular state's intrastate adoption or exemptions. A trip wholly within one state can still be interstate commerce when part of an interstate movement.
- • The first question uses the interstate CMV definition; the CDL-required vehicle definition in § 383.5 has different thresholds. A contradictory combination of answers asks you to recheck rather than reporting a definitive result.
- • PSP is optional and cannot replace required licensing-record or prior-employer inquiries. Pre-employment drug testing has an exception under § 382.301(b); the timing and process of each inquiry depend on the applicable rule.
Primary sources
- 49 CFR § 390.5 — interstate CMV definition
- 49 CFR § 383.3 — CDL scope for interstate and intrastate commerce
- 49 CFR § 383.5 — CDL vehicle definition
- 49 CFR § 390.3 — interstate scope and intrastate CDL rules
- 49 CFR § 391.23 — MVR and prior-employer inquiries
- 49 CFR § 382.103 — drug and alcohol testing scope
- 49 CFR § 382.301 — pre-employment testing and exceptions
- 49 CFR § 382.701 — pre-employment Clearinghouse queries
- FMCSA — Part 382 scope (official guidance)
- J. J. Keller — CDL and intrastate drug-testing scope
- FMCSA — Clearinghouse and prior-employer investigations
- J. J. Keller — independent Clearinghouse FAQ for non-CDL drivers (PDF)
Links checked October 3, 2026.
Frequently asked questions
Does a 10,001-pound truck require a CDL and a Clearinghouse query?
Not on weight alone. The interstate motor-carrier rules generally reach vehicles at 10,001 pounds or more, but CDL licensing uses a different vehicle definition. For an interstate CMV driver who does not need a CDL, investigate prior DOT-employer drug and alcohol history directly where applicable under 49 CFR § 391.23(e); do not substitute a Clearinghouse query or require a Part 382 test solely because the vehicle reaches 10,001 pounds.
Does a CDL driver who works only within one state need drug testing and a Clearinghouse query?
Generally yes when the driver is subject to the CDL rules in Part 383 and performs covered safety-sensitive functions: Part 382 applies to covered drivers in commerce in any state. Confirm any exception before relying on this answer. For qualification-file and prior-employer inquiries under Part 391, check that state's intrastate rules separately.
What is the difference between an MVR and a PSP report?
An MVR is issued by a state licensing authority and shows the driver's licensing history. The optional FMCSA Pre-Employment Screening Program (PSP) report contains up to five years of crash and three years of inspection history; it does not replace the MVR or the required prior-employer investigation.
When must a carrier complete the three-year driver-history inquiries?
For drivers covered by 49 CFR § 391.23, the carrier makes the prior-employer safety-performance investigation and requests MVRs from licensing authorities covering the preceding three years. The rule generally gives 30 days after employment begins for the inquiries, subject to its exceptions; it is inaccurate to say every response must arrive before dispatch. Separate pre-employment requirements, including a Clearinghouse query and a Part 382 drug test when applicable, have their own timing rules.