CDL Disqualifications: What Can Cost You Your License
Federal rule 49 CFR 383.51 splits CDL disqualifications into two tiers with very different penalties: a first major offense, DUI, refusing a BAC test, leaving an accident scene, or using a commercial vehicle to commit a felony, disqualifies you for 1 year (3 years if the vehicle was hauling placarded hazmat), and a second major offense disqualifies you for life. Serious traffic violations, like excessive speeding or texting behind the wheel, carry shorter penalties: 60 days on a second conviction within 3 years, 120 days on a third.
This is general information about a federal regulation, not legal advice; if you’re facing an actual disqualification, talk to a traffic or transportation attorney licensed in your state, since state implementation details and hearing rights vary.
What’s the difference between a major offense and a serious violation?
Major offenses are the small, severe category, things like driving under the influence, refusing a required alcohol or drug test, or using a commercial vehicle to commit a felony, and they carry disqualifications measured in years or for life. Serious traffic violations are a larger, less severe category, excessive speeding, reckless driving, improper lane changes, that only trigger disqualification once you rack up multiple convictions within a 3-year window; a single serious violation on its own doesn’t disqualify you.
Major offenses: the 1-year-to-lifetime tier
Federal rule (eCFR, 49 CFR 383.51) lists a specific set of major offenses, each carrying the same base penalty structure regardless of which one you commit:
| Offense | 1st offense | 2nd offense (any combination) |
|---|---|---|
| DUI (alcohol or controlled substance) | 1 year | Life |
| BAC of 0.04 or higher in a CMV | 1 year | Life |
| Refusing a required BAC test | 1 year | Life |
| Leaving the scene of an accident | 1 year | Life |
| Using a CMV to commit a felony (other than drug/human trafficking) | 1 year | Life |
| Driving a CMV while disqualified | 1 year | Life |
| Causing a fatality through negligent operation of a CMV | 1 year | Life |
| Using a CMV in a felony involving drug trafficking | Life, no reinstatement | N/A |
| Using a CMV in a felony involving human trafficking | Life, no reinstatement | N/A |
The 1-year penalty jumps to 3 years for a first offense if the vehicle involved was carrying placarded hazardous materials at the time. For most lifetime disqualifications on a second major offense, states can reinstate driving privileges after 10 years if the driver completes an approved rehabilitation program; the drug-trafficking and human-trafficking lifetime disqualifications are the exception, with no reinstatement path at all.
Serious traffic violations: the 60-to-120-day tier
A single serious violation doesn’t disqualify you; the penalty kicks in on repeat convictions within a 3-year window. The listed violations include excessive speeding (15 mph or more over the limit), reckless driving, improper or erratic lane changes, following too closely, a traffic violation connected to a fatal accident, driving a CMV without holding a valid CLP or CDL, driving without the CLP or CDL in your possession, driving with the wrong class or missing endorsements for the vehicle, and, added more recently, texting or using a hand-held mobile phone while driving a CMV.
| Convictions within 3 years | Disqualification |
|---|---|
| 2nd serious violation | 60 days |
| 3rd or subsequent serious violation | 120 days |
Source: eCFR, 49 CFR 383.51. These disqualifications only affect your ability to drive a commercial motor vehicle; they don’t automatically disqualify a regular, non-commercial driving privilege, though the underlying conviction may carry separate consequences on your standard license.
What about texting and hand-held phone use specifically?
Using a hand-held mobile phone while driving a CMV is banned outright under 49 CFR 392.82, and texting while driving a CMV is banned under the companion rule at 392.80. “Driving” under this rule includes being temporarily stopped in traffic or at a signal, not just moving; it excludes a vehicle safely pulled off the roadway (eCFR, 49 CFR 392.82). A conviction under either rule counts as a serious traffic violation for disqualification purposes, meaning the 60-day and 120-day penalties above apply on repeat convictions within 3 years.
Railroad-highway grade crossing violations
A separate table covers violations at railroad crossings: driving a CMV that must stop and fails to, not slowing to check for approaching trains, not having sufficient clearance to cross without stopping on the tracks, or attempting to beat a train through a crossing. These carry their own escalating penalty schedule.
| Convictions within 3 years | Disqualification |
|---|---|
| 1st | At least 60 days |
| 2nd | At least 120 days |
| 3rd or subsequent | At least 1 year |
Source: eCFR, 49 CFR 383.51.
Out-of-service order violations
Driving a CMV in violation of an out-of-service order, one placed on the driver or the vehicle by an inspector, carries its own penalty tier, and it’s harsher for hazmat loads or vehicles designed for 16 or more passengers.
| Vehicle type | 1st violation | 2nd violation (10-yr window) | 3rd+ violation |
|---|---|---|---|
| Non-hazmat, non-passenger | 180 days to 1 year | 2 to 5 years | 3 to 5 years |
| Hazmat-placarded or 16+ passenger | 180 days to 2 years | 3 to 5 years | 3 to 5 years |
Source: eCFR, 49 CFR 383.51.
Does a disqualification follow you across states?
Yes. CDL disqualifications are tracked through the Commercial Driver’s License Information System (CDLIS), a national database, so a disqualifying conviction in one state applies to your driving privileges everywhere, not just in the state where it happened. Moving to a new state doesn’t clear or reset a disqualification.
Bottom line
The gap between the two tiers is the thing to understand: major offenses start at a full year and escalate to life on a second offense, while serious traffic violations only bite after repeat convictions and top out at 120 days. Both tiers track nationally through CDLIS, and reinstatement after a lifetime major-offense disqualification is possible in most cases after 10 years, except for the drug- and human-trafficking categories, which carry no reinstatement path at all.
Study the full disqualification framework alongside general knowledge material in the CDL Practice Hub CDL permit study guide, since knowing what triggers a disqualification is part of the same safe-driving-practices content the knowledge test covers.
FAQ
Does one speeding ticket disqualify a CDL? No, not on its own. A serious traffic violation like excessive speeding only triggers disqualification once you have a second conviction within a 3-year window, at 60 days, with a third bringing 120 days.
Is a DUI an automatic lifetime CDL disqualification? No, not the first time. A first DUI conviction disqualifies you for 1 year (3 years if hauling placarded hazmat). A second DUI, or any second major offense in combination, is a lifetime disqualification.
Can a lifetime CDL disqualification ever be reversed? For most lifetime disqualifications from a second major offense, yes, states can reinstate after 10 years through an approved rehabilitation program. Lifetime disqualifications tied to using a CMV in drug or human trafficking felonies have no reinstatement path.
Does texting on a hands-free device count as a violation? The federal ban targets hand-held phone use and texting specifically; a properly mounted hands-free system used for voice calls is treated differently under 49 CFR 392.82, though reaching for or holding the device to activate it can still violate the rule. Check the specific hands-free requirements before assuming any device is compliant.
Do CDL disqualifications show up if I move to a new state? Yes. Disqualifications are tracked through the national CDLIS database and follow you regardless of which state issued the conviction or which state you move to next.