What does a DUI mean for a commercial driver's license in Pennsylvania?

Last updated October 4, 2026.

For a commercial driver, a first DUI in Pennsylvania brings a one-year disqualification from driving commercial vehicles, or three years if the truck was carrying placarded hazardous materials or the vehicle was built for 16 or more people (75 Pa.C.S. 1611(a) and (b)). A second DUI or refusal from a separate incident means a lifetime disqualification (1611(c)). PennDOT applies the one-year rule whether the DUI happened in a commercial vehicle or your own car, and for CDL holders ARD counts as a conviction.

The disqualification is separate from the criminal case and from any suspension of your regular license. Here is how each piece works. For DUI penalties in general, start with our main DUI defense page.

What happens to a CDL holder after a DUI arrest, step by step?

1. The test request. If you refuse, the officer's sworn report goes to PennDOT, and PennDOT disqualifies you for the same period as a conviction, before any trial (75 Pa.C.S. 1613(d) and (d.1)).
2. The criminal case. It follows the same path as any DUI, starting at the district court for the place of the stop, as described in what happens after a DUI arrest in Delaware County.
3. The outcome is reported. A conviction, or an acceptance of ARD, counts as a conviction for the commercial chapter (1603).
4. PennDOT disqualifies. You receive a notice with an effective date and must surrender the license when the disqualification begins (1611(i)).
5. The personal-vehicle question. You may apply for a non-commercial license for the disqualification period if your regular privilege is not also suspended.
6. Restoration. When the period ends, the restoration requirements must be met before the commercial privilege returns.

What is the legal limit in a commercial vehicle?

Section 3802(f) sets lower limits for anyone driving a commercial vehicle, school bus or school vehicle:

• 0.04% or higher within two hours of driving a commercial vehicle;
• 0.02% or higher within two hours of driving a school bus or school vehicle;
• any amount of alcohol that makes the driver incapable of driving safely, or driving under the influence of a controlled substance.

A violation of 3802(f) is sentenced at the high rate level of 3804(b): for a first offense, at least 48 consecutive hours in jail and a fine of $500 to $5,000. The two-hour window works the same way it does for other drivers, as explained in the two-hour rule for DUI tests.

Below 0.04%, a separate rule applies. Under 75 Pa.C.S. 1612, a person may not drive a commercial vehicle "while having any alcohol in his system." That is a summary offense with a $100 fine, and the driver is placed out of service for 24 hours. For a school bus or school vehicle the minimum fine is $250 and the employer places the driver out of service for 30 days.

Which vehicles count as commercial?

For these rules, a commercial motor vehicle is one designed or used to carry passengers or property that (75 Pa.C.S. 1603):

• has a gross vehicle weight rating or weight of 26,001 pounds or more;
• is a combination of 26,001 pounds or more that tows a unit of more than 10,000 pounds;
• is designed to carry 16 or more passengers, including the driver;
• is a school bus; or
• carries hazardous materials that must be placarded.

How long is a CDL disqualification after a DUI?

Disqualifications run one after another, not at the same time (1611(n)). The statute allows PennDOT to adopt regulations that reduce a lifetime disqualification to no less than ten years if federal rules permit (1611(d)); it is not automatic.

Does a DUI in my own car affect my CDL?

Yes. PennDOT's disqualification fact sheet and its online FAQ list driving under the influence and refusing chemical testing as major offenses that apply in a "CMV or Personal Vehicle," with a one-year disqualification for a first offense and three years with hazmat. PennDOT also states that out-of-state violations are treated as if they happened in Pennsylvania, and that a CDL holder who receives an administrative per se suspension for a DUI arrest in another state will be disqualified.

A refusal can cost twice. The officer's refusal report triggers the commercial disqualification under 1613(d.1), and the same refusal triggers the regular license suspension under 75 Pa.C.S. 1547(b). The regular-license side is covered in what happens if you refused a breath or blood test.

Does ARD protect a commercial driver?

Not from the disqualification. For the commercial license chapter of the Vehicle Code, a "conviction" expressly "shall include the acceptance of Accelerated Rehabilitative Disposition or other preadjudication disposition" (75 Pa.C.S. 1603). PennDOT's FAQ says the same: "ARD participation is considered a conviction for sanctioning of CDL holders." ARD can still end the criminal case in a dismissal, but the one-year disqualification follows, and a later DUI or refusal would count toward the lifetime rule.

The record also lasts longer. PennDOT normally expunges its record of a completed DUI ARD 12 years after completion, but it is not required to if "the person was a commercial driver at the time of the violation" (75 Pa.C.S. 1534(d)(2)). And the records PennDOT keeps of a commercial driver's convictions under 1611(j) may not "be expunged by order of court." That changes the usual comparison between ARD and trial, covered in our page on whether to accept ARD or fight a DUI. The wider record-clearing rules are on our page about whether a DUI can be expunged or sealed.

Can I keep driving my personal car during a CDL disqualification?

Sometimes. PennDOT's FAQ says that a driver who holds a CDL or permit and is only disqualified from operating a commercial vehicle may apply for a non-commercial license to drive a non-commercial vehicle during the disqualification, and that the application comes with the disqualification notice. If your regular driving privilege is also suspended for the DUI or a refusal, that suspension still applies. When the disqualification ends, PennDOT requires a restoration fee before the commercial privilege comes back, and the license must be surrendered when the disqualification begins (1611(i)).

Neither interlock license helps with the commercial side: the current Ignition Interlock Limited License and the new license coming in November 2027 both exclude commercial vehicles, as shown in driving during a DUI suspension and the new interlock license.

Can a reduced charge still hurt a CDL?

Often, yes. PennDOT lists reckless driving under 3736 as a serious traffic offense in a commercial or personal vehicle. Two serious traffic offenses from separate incidents within three years bring a 60-day commercial disqualification, and three bring 120 days (1611(g)). For a CDL holder driving a personal vehicle, a violation counts toward that rule when the conviction also suspends the non-commercial privilege. Reckless driving itself is explained in whether reckless driving is a crime in Pennsylvania. Leaving the scene of an accident is a major offense with its own one-year disqualification, which matters in any case covered on our page about a DUI with a crash and injuries.

What changes the answer?

• The vehicle and the load. Hazmat that must be placarded, or a vehicle built for 16 or more people, turns one year into three (1611(b)).
• Your history. Any second major offense or refusal from a separate incident means life (1611(c)).
• Test or refusal. A refusal disqualifies on the officer's report, without waiting for the criminal case (1613(d.1)).
• Where it happened. A conviction or administrative finding from another state is treated as if it happened in Pennsylvania (1611(h)); drivers from other states should also read what happens when an out-of-state driver gets a Pennsylvania DUI.
• Your regular license. A separate DUI or refusal suspension of your non-commercial privilege decides whether you can drive at all during the disqualification; see when PennDOT suspends your license after a DUI.
• ARD eligibility. ARD may still end the criminal case, and whether the DA will offer it depends on the bars covered in who is eligible for DUI ARD in Delaware County.

For example: a weekend DUI in a personal car

Here is a hypothetical. A tractor-trailer driver who does not haul hazardous materials is stopped in a personal car on a Saturday night in Delaware County and tests at 0.09%. The commercial limits do not apply, because the driver was not in a commercial vehicle, so the case is an ordinary general impairment DUI. The DA offers ARD, and at 0.09% there is no ARD license suspension of the regular license.

The commercial license is another matter. Accepting ARD counts as a conviction for the commercial chapter, so PennDOT disqualifies the driver from commercial vehicles for one year, and the record of it cannot be expunged by court order. The driver may apply for a non-commercial license to keep driving the family car during that year. Any later DUI or refusal, in any vehicle, would mean a lifetime disqualification. This example is only an illustration; every case depends on its own facts.

What mistakes do CDL holders make?

• Not mentioning the CDL. The plan for the criminal case should account for the commercial license from the first day.
• Assuming a personal-car DUI does not count. PennDOT lists DUI and refusal as major offenses in a commercial or personal vehicle.
• Treating ARD as a safe harbor. For the commercial chapter it is a conviction.
• Driving a commercial vehicle while disqualified. PennDOT lists that as its own major offense with another disqualification.
• Accepting a reduced charge without checking it. Reckless driving and other serious traffic offenses count toward the 60-day and 120-day rules.
• Missing the appeal window. Disqualification notices can be appealed within 30 days of the mailing date.

What should a CDL holder do this week?

1. Tell your lawyer you hold a CDL or a commercial learner's permit, even if you were in your own car.
2. Keep every PennDOT letter. A disqualification or suspension notice gives an effective date and, under PennDOT's manual, may be appealed to the Court of Common Pleas (Civil Division) in your county of residence within 30 days of the mailing date.
3. Write down whether you were in a commercial vehicle, what it was carrying, and how many seats it had.
4. List any earlier DUI, refusal or serious traffic conviction, in any state.
5. Do not assume ARD solves the license problem; ask how the plan affects the commercial privilege before you apply.
6. Ask your employer about its own drug and alcohol policies only after talking with your lawyer.

Frequently asked questions

Does the 0.04% limit apply when I drive my own car?

No. The 0.04% line in 3802(f) applies while driving a commercial vehicle. In a personal car the ordinary limits apply, but a DUI conviction or ARD there still disqualifies the CDL.

Can I appeal a refusal disqualification?

Yes. A disqualification based on a Pennsylvania refusal report carries the same right of appeal as a suspension (1613(d.1)). In Delaware County, license appeals are heard in the Court of Common Pleas in Media, as explained in what to expect at the Delaware County Courthouse.

Do the disqualification and the regular suspension run together?

Not necessarily. Commercial disqualifications are imposed consecutively with each other (1611(n)), and a regular-license suspension for the DUI or refusal is a separate action with its own effective date.

Is a lifetime disqualification really for life?

The statute lets PennDOT adopt rules reducing it to no less than ten years where federal rules allow (1611(d)), but that is not automatic. A lifetime disqualification for using a vehicle in a drug delivery felony has no reduction at all (1611(e)).

What if I only had a little alcohol in a commercial vehicle?

Any alcohol in the system while driving a commercial vehicle is a summary offense with a 24-hour out-of-service order (1612), even below 0.04%.

Call Giribaldi Law at (610) 891-8303 or contact us online for a free consultation about a DUI and your commercial license.