8
Skill areas the road test must cover
CDL
Substitutes for the test (with limits)
3 years
Validity of a prior road test certificate
Tank
CDL substitute does not extend to tank, doubles, triples
The Rule: No Road Test, No Driving
The starting point is blunt. Under 49 CFR 391.31(a), a person shall not drive a commercial motor vehicle unless they have first successfully completed a road test and been issued a certificate of driver's road test. The road test exists so the carrier — not just the state that issued the license — has affirmatively confirmed the driver can handle the specific type of vehicle being assigned.
In practice, most CDL drivers never take a carrier-administered road test, because 49 CFR 391.33 provides an equivalent. But the equivalent is a substitute for the test, not an exemption from the documentation. Whether a driver earns the certificate the hard way or presents a CDL, something has to be in the driver qualification file proving the road test requirement was met. A DQF with no road test certificate and no accepted substitute is incomplete.
The CDL Substitute Under §391.33 — and Its Limits
Section 391.33(a) gives a carrier two acceptable substitutes for the road test. A driver may present, and the carrier may accept, either a valid Commercial Driver's License (issued by a state and obtained after a road test in a CMV of the type to be assigned), or a copy of a valid road test certificate issued under §391.31 within the preceding three years. Either one, once accepted, stands in for the test the carrier would otherwise have to administer.
Acceptable substitutes
- A valid CDL for the type of CMV being assigned
- A copy of a valid road test certificate issued under §391.31 within the past 3 years
Where the CDL substitute stops
The CDL substitute does not extend to operating a CMV that requires a double/triple trailer or tank vehicle endorsement. For doubles, triples, and tank vehicles, the CDL alone does not satisfy §391.31 — the carrier needs a road test (or certificate) covering that vehicle type.
The tank-and-doubles gap is the one carriers miss
A carrier that hires a CDL holder for a tanker route and files only the CDL has not satisfied §391.31 for that vehicle. The §391.33 substitute explicitly carves out double/triple trailer and tank vehicle operations. If your driver will run a tank or pull doubles or triples, plan on a road test in that configuration — or a road test certificate that covers it — and put it in the file.
Whatever you accept, §391.33(b) requires the carrier to retain a legible copy of the license or certificate in the driver qualification file. And §391.33 is a floor: the carrier may still require any driver who presents a substitute to take a road test or any other test. Accepting the CDL is a convenience the regulation permits — it never removes the carrier's authority to test the driver itself.
Who Gives the Test
When a road test is actually administered, §391.31(b) controls who may give it. The test must be given by the motor carrier or a person the carrier designates, and that person must be competent to evaluate and determine whether the driver can safely operate the type of CMV being assigned. The examiner does not need a federal credential — but they do need the judgment to assess real driving skill in that equipment.
An owner-operator can't road-test himself
Section 391.31(b) is explicit: a driver who is also a motor carrier must be given the test by a person other than himself or herself. A single-truck owner-operator who is both the carrier and the driver cannot self-certify a road test — they typically rely on the §391.33 CDL substitute instead, which is exactly what the equivalent provision is there to allow.
What the Road Test Must Cover
If you administer the test, §391.31(b) sets the minimum scope. The road test must be given in the type of CMV the driver will operate and, at a minimum, test the driver's skill across eight operational areas. These are the maneuvers an auditor expects to see reflected on the completed road test form.
Pre-trip inspection
The inspection of the vehicle required by §392.7
Coupling & uncoupling
For combination units, if the driver will operate them
Placing the vehicle in operation
Starting and getting the vehicle moving safely
Use of controls & emergency equipment
Operating the vehicle's controls and emergency equipment
Operating in traffic & passing
Driving in traffic and while passing other vehicles
Turning the vehicle
Executing turns appropriate to the vehicle type
Braking & slowing
Braking and slowing by means other than braking
Backing & parking
Backing and parking the vehicle
What the Certificate Must Show
When the driver passes, §391.31(e) and (f) govern the certificate. The examiner completes a certificate of driver's road test that identifies the driver and the vehicle and attests to the driver's skill. The carrier then files the certificate — and the completed test form — in the driver qualification file.
| Certificate must include | Why it matters |
|---|---|
| Driver's name | Identifies who was tested |
| Type of CMV used for the test | Confirms the test matched the vehicle to be assigned |
| Date of the test | Establishes when the qualification occurred |
| Approximate distance driven | Shows the test was substantive, not nominal |
| Examiner's statement of sufficient skill | The attestation that the driver can safely operate the vehicle type |
| Examiner's signature, title, and organization | Identifies who is accountable for the evaluation |
The retention rule lives in §391.51. The road test certificate (or the accepted §391.33 substitute) is part of the DQF and is retained for as long as the driver is employed by the carrier plus three years thereafter. Unlike the annual MVR or annual review note — which §391.51(d) allows you to purge three years after execution — the road test record stays for the life of the file.
A compliant road test record
- Road test given in the same vehicle type the driver will operate
- All eight skill areas reflected on the form
- Certificate shows name, vehicle, date, distance, and skill statement
- Examiner signed with title and organization
- Tank / doubles / triples drivers tested in that configuration
- Certificate (or §391.33 substitute) filed in the DQF
Common road test failures
- No road test certificate and no accepted CDL substitute in the file
- Tank or doubles driver with only a CDL on file
- Certificate missing the date, distance, or skill statement
- Owner-operator who 'self-administered' a road test
- Copy of the CDL/certificate never placed in the DQF
- Prior road test certificate older than 3 years used as the substitute
How FileFlo Tracks the Road Test Document
FileFlo is the records and proof layer for the driver qualification file — not a testing service or a CDL issuer. It does not administer road tests. What it does is make sure the right document — a road test certificate or an accepted §391.33 substitute — exists for every driver, is the correct one for the vehicle they operate, and is producible the moment an auditor asks.
- Road test document on file for every driver: Track whether each driver has a road test certificate or an accepted CDL/certificate substitute, so no DQF is missing its §391.31 record before first dispatch.
- Vehicle-type flagging: Surface drivers assigned to tank, doubles, or triples whose file shows only a CDL — the exact gap §391.33 carves out — so you can road-test that configuration.
- Certificate validity tracking: Watch the 3-year validity on any prior road test certificate used as the substitute, so an expired certificate doesn't quietly leave a driver unqualified.
- Audit-ready DQF export: Export the complete driver qualification file — road test record included — in minutes when FMCSA opens an audit or compliance review.
Key Takeaways
- A driver can't operate a CMV without a road test certificate or an accepted substitute (§391.31(a)).
- A valid CDL or a road test certificate from the past 3 years substitutes for the test (§391.33(a)).
- The CDL substitute does NOT cover doubles, triples, or tank vehicles — those need a road test in that configuration.
- The test must cover eight skill areas and be given in the type of vehicle the driver will operate (§391.31(b)).
- Keep a legible copy in the DQF — the road test record is retained for the duration of employment plus three years (§391.33(b), §391.51).
Driver Road Test & Certificate: FAQ
Common questions about the 49 CFR 391.31 road test and the 391.33 CDL substitute.
Not necessarily. Under 49 CFR 391.31, a driver cannot operate a commercial motor vehicle until they have successfully completed a road test and been issued a certificate. But 49 CFR 391.33 lets a carrier accept, in place of the road test, a valid CDL or a copy of a valid road test certificate issued within the preceding three years. So a driver with the correct CDL class and endorsements for the vehicle you are assigning generally does not need a new road test — the CDL serves as the equivalent. You still must keep a legible copy of the substitute document in the driver qualification file.
Under 49 CFR 391.33(a), the CDL substitute does not extend to operating a commercial motor vehicle requiring a double/triple trailer or tank vehicle endorsement. In other words, holding a CDL does not by itself qualify a driver to operate doubles, triples, or tank vehicles without either a road test in that specific vehicle type or a road test certificate covering it. For those configurations you cannot simply rely on the CDL as the equivalent — the carrier must verify the driver can safely operate that type of vehicle.
Under 49 CFR 391.31(b), the road test must be given by the motor carrier or a person designated by the carrier who is competent to evaluate and determine whether the driver can safely operate the type of commercial motor vehicle being assigned. There is one explicit limit: a driver who is also a motor carrier cannot give the test to himself or herself — it must be administered by someone other than the driver being tested. The examiner does not need a special government credential, but must be qualified to judge driving skill.
Under 49 CFR 391.31(b), the road test must, at a minimum, test the driver's skill in eight areas: the pre-trip inspection required by 392.7; coupling and uncoupling combination units (if the driver will operate them); placing the vehicle in operation; using the vehicle's controls and emergency equipment; operating the vehicle in traffic and while passing other vehicles; turning the vehicle; braking and slowing by means other than braking; and backing and parking. The test must be given in the type of commercial motor vehicle the carrier intends the driver to operate.
Under 49 CFR 391.31(e) and (f), when a driver passes, the examiner completes a certificate showing the driver's name, the type of vehicle tested, the date, the approximate distance driven, and a statement that the driver possesses sufficient skill to safely operate that type of vehicle. The examiner signs it with their title and organization. The carrier keeps the original (or a copy) of the certificate, plus the completed road test form, in the driver qualification file. Under 391.51, the road test certificate is retained for the duration of employment plus three years.
Yes. Section 391.33 sets a floor, not a ceiling. A carrier may require any person who presents a CDL or a prior road test certificate as the equivalent to take a road test or any other test anyway. Many carriers road-test new hires regardless of CDL status because the carrier — not the licensing state — bears the safety and liability exposure if the driver cannot actually handle the equipment. Accepting the CDL substitute is a permitted convenience, not a mandate to skip your own evaluation.
Make sure every DQF has the right road test record
FileFlo tracks the road test certificate or §391.33 substitute for every driver, flags tank and doubles drivers who only have a CDL on file, and exports an audit-ready DQF in minutes. It is the records and proof layer for driver qualification — automated alerts, gap detection, one-click export.
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