CDL Disqualifications: What Can Cost You Your License

A CDL can be disqualified for DUI, refusing an alcohol test, leaving the scene of an accident, using a vehicle in a felony, driving a CMV while suspended or causing a fatality (1 year or more, lifetime for a second), plus repeated serious violations like excessive speeding or texting (60 or 120 days).

The rules come from federal regulation. A person required to have a CLP or CDL who is disqualified must not drive a CMV, and an employer must not knowingly allow a disqualified driver to drive one. States enforce the rules through the licensing system. Here are the answers to the questions drivers ask most.

Quick answers

• Disqualifying offenses: Major offenses (1 year or more on a first conviction), repeated serious traffic violations (60 or 120 days), railroad-crossing violations and out-of-service order violations.
• Lifetime disqualification: Usually triggered by a second major offense. Using any vehicle in a drug manufacturing, distribution or dispensing felony, or a CMV in a human trafficking felony, is a lifetime ban from the first conviction (49 CFR 383.51(b)(9)).
• Reinstatement: Time-limited bans end when the period ends. Some lifetime bans can be reinstated after 10 years at the state's discretion. Drug and alcohol program violations also require the return-to-duty process before your state restores your CDL.

Major offenses: the full list

The most serious violations are called major offenses. A first conviction for driving under the influence of alcohol carries 1 year, or 3 years if you were hauling hazardous materials, and a second conviction means life. (49 CFR 383.51(b)) The major offenses are:

• Driving under the influence of alcohol
• Driving under the influence of a controlled substance
• Having an alcohol concentration of 0.04 or greater while operating a CMV
• Refusing to take an alcohol test as required under a state's implied consent laws (49 CFR 383.51(b)). Refusing a required DOT drug test is not on this list, but it puts you in prohibited status in the Clearinghouse, which leads to a CDL downgrade (49 CFR 383.73(q))
• Leaving the scene of an accident
• Using the vehicle to commit a felony, other than the drug and trafficking felonies below
• Driving a CMV when your driving privileges are revoked, suspended or canceled because of prior CMV violations
• Causing a fatality through negligent operation of a CMV

Major offense	First conviction	Second conviction
Offenses above (standard CMV)	At least 1 year	Lifetime
Same offenses while hauling placarded hazmat	At least 3 years	Lifetime
Drug manufacturing, distribution or dispensing felony using any vehicle (49 CFR 383.51(b)(9))	Lifetime	Lifetime
Human trafficking felony using a CMV	Lifetime	Lifetime

Disqualification periods stack. A new disqualification period is added to any previous period of disqualification. (49 CFR 383.51(a)(5))

What triggers a lifetime disqualification?

A second major offense. A second conviction for any combination of major offenses in separate incidents triggers a lifetime ban, and it doesn't have to be the same offense twice. A DUI followed years later by a test refusal counts as two.

Two offenses are lifetime bans from the first conviction. Using any vehicle to commit a felony involving controlled substance manufacturing, distribution or dispensing, or using a CMV to commit human trafficking, results in permanent disqualification (49 CFR 383.51(b)). These two offenses sit outside the 10-year reinstatement path, which applies only to the offenses in paragraphs (b)(1) through (8) of the table.

Serious traffic violations

Serious traffic violations don't disqualify you on a single offense, but they add up. Two in a separate incident within 3 years lead to 60 days, and three or more within 3 years lead to 120 days (49 CFR 383.51(c)). The serious violations are:

• Excessive speeding, meaning 15 mph or more above the regulated or posted limit
• Reckless driving
• Making improper or erratic lane changes
• Following the vehicle ahead too closely
• Violating a state or local traffic control law (other than a parking violation) in connection with a fatal crash (49 CFR 383.51(c))
• Driving a CMV without ever getting a CLP or CDL (49 CFR 383.51(c))
• Using a handheld phone or texting while driving a CMV
• Driving a CMV without a CLP or CDL in your possession
• Driving a CMV without the proper class of CDL or the endorsements required for the vehicle, passengers or cargo

Railroad crossing and out-of-service violations

Two more categories are easy to overlook, and both escalate with repeat offenses.

• Railroad-highway grade crossing violations: Failing to slow down or stop at a railroad crossing means 60 days for a first offense, 120 days for a second within three years, and one year for a third within three years. (49 CFR 383.51(d))
• Out-of-service order violations: A first violation (non-hazmat) is 180 days to 1 year, and a second within 10 years is 2 to 5 years. For hazmat or vehicles carrying 16 or more passengers, a first violation is 180 days to 2 years. (49 CFR 383.51(e)) Civil penalties apply too: a driver convicted of violating an out-of-service order is also subject to a civil penalty (49 CFR 383.53).

FMCSA can also disqualify a driver whose driving is judged an imminent hazard. That period may not exceed 30 days unless FMCSA follows the additional hearing steps, and it can never exceed one year.

Do offenses in your personal vehicle count?

Often, yes. A CDL holder is subject to disqualification if they drive a CMV or a non-CMV and are convicted of the listed violations. (49 CFR 383.51(a)(3)) For DUI, refusing an alcohol test, leaving the scene and using a vehicle in a felony, the penalty is the same in a personal vehicle as in a CMV: 1 year for a first conviction, lifetime for a second.

Serious traffic violations in a personal vehicle are treated differently. In a non-CMV, they count toward the 60- and 120-day periods only if the conviction results in revocation, cancellation or suspension of your license or driving privileges. (49 CFR 383.51(c)) A ticket on your own time can still end up on your commercial record.

Getting back on the road: reinstatement

How you get reinstated depends on why you lost your CDL. Find your situation below.

Time-limited disqualifications (60 days to 5 years)

These end when the period ends. You then go through your state's reinstatement steps. Fees, paperwork, reinstatement forms and any retesting vary by state, so confirm the details with your state licensing agency (DMV). Because disqualification periods stack, ask the agency for the exact eligibility date on your record.

Lifetime disqualifications

Lifetime disqualifications are not always permanent. A state may reinstate a driver disqualified for life after 10 years if that person has voluntarily entered and successfully completed a state-approved rehabilitation program. (49 CFR 383.51(a)(6)) Some limits apply:

• The regulation says a state "may" reinstate, which means it is not required to. Ten years is not an automatic expiration date.
• A person who has been reinstated and is later convicted of another major offense must not be reinstated again. (49 CFR 383.51(a)(6))
• The drug-felony and human trafficking lifetime bans are not eligible at all.

Drug and alcohol program violations: Clearinghouse and return-to-duty

A positive test or refusal in the FMCSA Drug and Alcohol Clearinghouse adds a separate path that doesn't depend on a conviction. Since November 18, 2024, state licensing agencies must remove commercial driving privileges from drivers subject to the CMV driving prohibition. (FMCSA Clearinghouse) The state must complete and record the downgrade within 60 days of receiving FMCSA's notice that a driver is prohibited. (49 CFR 383.73(q)) The downgrade lasts until you finish the return-to-duty process. Here is the usual path:

1. See a substance abuse professional (SAP). You complete an initial evaluation by a DOT-qualified SAP.
2. Finish the recommended education or treatment. The SAP decides what this involves.
3. Complete the follow-up evaluation. The SAP clears you and sets a follow-up testing plan.
4. Pass the return-to-duty test. You can't order this test yourself. An employer or your consortium or third-party administrator has to order it. (FMCSA return-to-duty guide)
5. Confirm your status. After you complete the process and your Clearinghouse status is updated to "not prohibited," your state licensing agency will allow you to reinstate your commercial driving privileges. (FMCSA Clearinghouse)
6. Contact your state licensing agency. Ask what fees, forms or testing it requires to restore the CDL.

The path doesn't depend on waiting. A Clearinghouse downgrade isn't like a suspension, and there is no set number of days after which the CDL comes back on its own. (FMCSA Clearinghouse)

Even after reinstatement, expect employers to look hard at your record. Keep it clean going forward.

The bottom line

Protecting your CDL means avoiding major offenses and the buildup of serious violations, on and off duty. A first major offense costs you at least a year, and a second can end your commercial driving career. If you're planning a career change, see how CDL self-certification works and what to expect on the CDL skills test. Hauling hazmat adds its own screening, covered in our guide to the hazmat TSA background check.

If you're ready to start training, RoadCert offers 100% online, self-paced ELDT theory courses, including Class A. RoadCert is FMCSA-registered, meaning it is listed on the Training Provider Registry, and reports your completion to the registry for you.

Sources

• 49 CFR 383.51, Disqualification of drivers (eCFR)
• 49 CFR 383.52, Disqualification of drivers determined to constitute an imminent hazard (eCFR)
• 49 CFR 383.53, Penalties (eCFR)
• 49 CFR 383.73, State procedures, including the Clearinghouse downgrade in paragraph (q) (eCFR)
• FMCSA Drug and Alcohol Clearinghouse: CDL downgrades FAQ
• FMCSA Drug and Alcohol Clearinghouse: return-to-duty process for drivers