CDL Disqualifications: Federal Rules & State Consequences (2026)
Federal rules set minimum CDL disqualifications. The offense, vehicle type, prior incidents, and state consequences determine how they apply. Use the source tables and your agency’s notice for a specific case.
Quick answer
- Where the rules come from
- One federal regulation, 49 CFR 383.51 — the same in every state
- Your personal car counts
- A DUI or serious offense in your own vehicle can disqualify your CDL
- Major offense (DUI, refusal, etc.)
- 1 year first time (3 years if hauling placarded hazmat); lifetime on a second
- One serious violation
- The federal serious-violation table begins with a second qualifying conviction; other penalties may apply
- Drug-trafficking felony with a vehicle
- Lifetime with no 10-year reinstatement; qualifying human trafficking is another permanent bar
Source review dated July 20, 2026 against FMCSA (49 CFR 383.51)
How CDL disqualifications work
Every disqualification below comes from one federal regulation,49 CFR 383.51. Because it's federal, the offenses and minimum periods apply nationally. A state administers the process and can impose additional licensing consequences.
Two things surprise people most. First, some major offenses count even when you were driving your personal car, not a commercial vehicle (49 CFR 383.51(a)(3)). A DUI on a weekend in your own pickup can disqualify the CDL you use for work. Second, disqualification periods arecumulative — a second offense stacks on top of the first, it doesn't reset the clock.
Major offenses
These are the most serious: DUI or driving under the influence of a controlled substance, a 0.04% or higher blood alcohol level while driving a CMV, refusing an alcohol test under the applicable implied-consent law, leaving the scene of a crash, using a vehicle to commit a felony, driving while already disqualified, or causing a fatality through negligent driving.
Some offenses apply in a personal vehicle; other rows apply only in a CMV. Read the vehicle-specific columns in the regulation. Examples: DUI, a 0.04+ blood alcohol level in a CMV, refusing a required alcohol test, leaving the scene of a crash, or using a vehicle to commit a felony.
| Situation | Disqualification |
|---|---|
| First conviction under applicable major-offense rows (1)–(8) | 1 year; 3 years for applicable placarded-hazmat CMV cases |
| Second qualifying major conviction from a separate incident | Lifetime; state may permit reinstatement after 10 years and approved rehabilitation for rows (1)–(8) |
| Using a vehicle for a felony involving manufacture, distribution, or dispensing of controlled substances | Lifetime; no 10-year reinstatement |
| Using a CMV for a felony involving severe forms of trafficking in persons | Lifetime; no 10-year reinstatement |
| A qualifying major conviction after reinstatement from a lifetime disqualification | No further reinstatement under 383.51(a)(6) |
Lifetime disqualification and reinstatement
For qualifying second major convictions under rows (1)–(8), a state may allow reinstatement after 10 years and approved rehabilitation. This option does not apply to the controlled-substance felony in row (9) or the qualifying CMV human-trafficking felony in row (10). A subsequent qualifying major conviction after such reinstatement also bars further reinstatement.
The 0.04 CMV alcohol threshold, specified disqualified CMV operation, and negligent CMV fatality rows do not automatically apply to a personal-car incident. Consult the vehicle-specific columns.
Serious traffic violations
This is the category people worry about most and misunderstand most. Examples include speeding 15+ mph over the limit, reckless driving, following too closely, an improper or erratic lane change, texting or holding a phone while driving a CMV, and driving without the correct class or endorsement.
The federal serious-traffic table starts with a second qualifying conviction. It provides 60 days for a second and 120 days for a third qualifying conviction within three years. A single ticket may still carry state penalties. Applicable non-CMV rows have an additional condition involving suspension, revocation, or cancellation of the non-CMV driving privilege.
Examples: speeding 15+ mph over the limit, reckless driving, following too closely, an improper lane change, texting or holding a phone while driving a CMV, or driving without the right class or endorsement. For non-CMV convictions, the applicable table rows also require loss of the non-CMV driving privilege.
| Situation | Disqualification |
|---|---|
| One conviction in the federal serious-traffic-violation table | No disqualification under this table alone; other penalties may apply |
| Second within 3 years | 60-day disqualification |
| Third or more within 3 years | 120-day disqualification |
Railroad grade-crossing violations
Unlike serious violations, grade-crossing violations disqualify you on thefirst offense. These are violations at railroad crossings — failing to slow down and check, failing to stop when required, or not leaving enough room to fully clear the tracks.
Violations at railroad crossings — failing to slow and check, failing to stop, or not having room to fully clear the tracks.
| Situation | Disqualification |
|---|---|
| First offense | At least 60 days |
| Second within 3 years | At least 120 days |
| Third or more within 3 years | At least 1 year |
Out-of-service order violations
If a roadside inspector places you or your vehicle out of service and you drive anyway, that's an out-of-service violation. The key detail here is the lookback window: repeat out-of-service violations are counted over10 years, not the 3-year window used for serious violations.
Driving after an inspector places you or your vehicle out of service. The lookback for repeat offenses is 10 years.
| Situation | Disqualification |
|---|---|
| First offense | At least 180 days (up to 1 year; up to 2 years hauling hazmat or 16+ passengers) |
| Second within 10 years | At least 2 years (3 years hazmat/passengers) |
| Third or more within 10 years | At least 3 years |
Why you can't hide a CDL conviction
Non-commercial drivers can sometimes take traffic school or accept a deferred-judgment deal to keep a ticket off their record. That option does not exist for CDL holders. Federal law at49 CFR 384.226 prohibits states frommasking — hiding, deferring judgment, or offering diversion — for any traffic conviction of a CDL or commercial-permit holder, in any vehicle. The conviction goes on your commercial driving record. The only exceptions are parking, vehicle-weight, and vehicle-defect violations.
Clearinghouse status is a separate requirement
A prohibited Drug & Alcohol Clearinghouse status can also remove commercial privileges. Read the Clearinghouse and return-to-duty guide.
Related pages
Disqualifications are only one way to lose a CDL. A lapsed or failed medical exam is another — seeDOT physical disqualifications. If you're just starting out, ourhow to get a CDL guide walks through the full process.
CDL Disqualification FAQ
Can a DUI in my personal car disqualify my CDL?
Yes. Federal rules count major offenses whether you were in a commercial vehicle or your own car (49 CFR 383.51(a)(3)). A DUI, a refusal to test, or leaving the scene of a crash in your personal vehicle can disqualify your CDL just as if it happened in a truck.
Does one speeding ticket disqualify my CDL?
Under the federal serious-traffic-violation table, the disqualification threshold is a second qualifying conviction within three years (60 days), or a third (120 days). This is not a promise that one ticket has no licensing consequences: state suspensions and other disqualification rules can apply.
What is the difference between a lifetime disqualification and a lifetime with no reinstatement?
A second major offense brings a lifetime disqualification, but a state may allow you to apply for reinstatement after 10 years if you complete an approved rehabilitation program (49 CFR 383.51(a)(6)). Using a vehicle to commit a felony involving manufacturing or distributing a controlled substance is different: it is a lifetime disqualification with no reinstatement, ever.
Can I keep a CDL conviction off my record with traffic school or a plea deal?
No. Federal law (49 CFR 384.226) prohibits states from "masking" — hiding, deferring, or diverting — any traffic conviction for a CDL or permit holder so that it stays off the driving record. The traffic-school route that non-commercial drivers sometimes use is not available to CDL holders. Parking, weight, and vehicle-defect violations are the only exceptions.
How far back do out-of-service violations count?
Out-of-service order violations use a 10-year lookback for repeat offenses, not the 3-year window used for serious violations. A second out-of-service violation within 10 years of the first means at least a 2-year disqualification.
Official sources
Check the applicable rule and current instructions at these official sources. Research limitations are identified where they affect a claim.