What counts as DUI in Pennsylvania, and what are the BAC tiers?
Pennsylvania's DUI statute, 75 Pa.C.S. § 3802, makes it an offense to drive after drinking enough that you cannot drive safely, or with a prohibited BAC within two hours of driving. The statute sets three alcohol tiers plus a controlled-substance provision, and the tier determines the penalty range.
First-offense penalties by tier — 75 Pa.C.S. §§ 3802, 3804, 1547| Tier | BAC | Grading | Jail | Fine | License suspension |
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| General impairment, § 3802(a) | General-impairment range or unsafe to drive | Misdemeanor tier | Probationary tier | Statutory fine | Tier-dependent |
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| High BAC, § 3802(b) | High-BAC range | Misdemeanor tier | Mandatory minimum applies | Statutory range | Tier-dependent |
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| Highest BAC, § 3802(c) | Highest-BAC range | Misdemeanor tier | Mandatory minimum applies | Statutory range | Tier-dependent |
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| Controlled substance, § 3802(d), and refusals | Controlled substance or refused test | Highest penalty tier | Mandatory minimum applies | Statutory range | Refusal adds a separate 12-month § 1547 suspension |
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Penalties rise for second and subsequent offenses within the 10-year lookback. Compare the full Pennsylvania DUI tiers and first-offense DUI guide.
What does a Pennsylvania DUI lawyer do for you?
A DUI lawyer examines the stop, the arrest, and the chemical test for legal defects, then chooses among four paths: ARD, suppression, negotiation, or trial.
That work includes obtaining police video and the affidavit of probable cause; testing reasonable suspicion for the stop; reviewing field sobriety tests, breath-device calibration and operator certification; and examining whether a blood draw was lawful and consensual. Attorney Quinlan is a member of the National College for DUI Defense and appears in magisterial district courts, Courts of Common Pleas, and PennDOT hearings across Cumberland, Dauphin, York, Lancaster, Perry, Franklin, and Adams counties.
What should I do right after a DUI arrest in PA?
Say nothing beyond identifying yourself, write down everything you remember about the stop while it is fresh, stay off social media, and call a DUI lawyer before your preliminary hearing.
Charges arrive with a preliminary hearing date before an MDJ. Do not miss or waive it without advice—it is the first chance to test the evidence and open the ARD conversation with the District Attorney. A refusal also triggers a separate PennDOT process that runs independently of the criminal case.
Will I lose my license after a Pennsylvania DUI?
It depends on the tier, your record, and whether you accept ARD.
A first chemical-test refusal carries a separate 12-month civil suspension under § 1547, increasing to 18 months for a later refusal. ARD can reduce the suspension, and an Ignition Interlock Limited License may preserve driving privileges for eligible drivers. Review the license-reinstatement process, PennDOT restoration requirements, and suspension guide.
Will I go to jail for a first DUI in Pennsylvania?
The answer depends on the BAC tier, whether drugs or a refusal are alleged, and the prior-offense record. General impairment is the probationary tier; higher tiers carry mandatory confinement.
Some Central Pennsylvania counties may use house arrest with electronic monitoring or a DUI treatment program for short minimum sentences. ARD eliminates jail for eligible first offenders, while repeat offenses within the 10-year lookback carry escalating mandatory minimums.
Can I get ARD, and is it better than fighting the charge?
ARD is usually the best result for an eligible first offender, but it is not automatic and it is not always the right choice.
ARD is a pre-trial diversion program under § 3807 that can end in dismissal and expungement after successful completion. Act 58 of 2025 created DUI following diversion under § 3802(h) for a new DUI within 10 years of completing ARD, at the second-offense level. If the stop or chemical test is legally defective, suppression may produce a better result than diversion.
Can a Pennsylvania DUI be dismissed or reduced?
Yes, when the evidence has a defect the Commonwealth cannot cure.
Potential issues include an unlawful stop, a defective checkpoint, an unlawful blood draw, unreliable breath testing, or chain-of-custody gaps. When dismissal is unavailable, the evidence may support a reduction to a lower tier or another negotiated resolution.
Private DUI lawyer or public defender?
You are entitled to a public defender only if you qualify financially, and a private DUI lawyer can typically devote more time to the video, the lab, and the pre-hearing negotiation.
A private lawyer retained before the preliminary hearing can begin evidence requests, PennDOT appeal review, and ARD screening immediately. The right choice depends on financial eligibility, case complexity, and how early counsel becomes involved.
Which court handles my DUI in Cumberland, Dauphin, or York County?
Your case starts at the Magisterial District Court for the municipality where the stop occurred and, if it proceeds past the preliminary hearing, moves to the county Court of Common Pleas.
The location registry identifies the Cumberland County Courthouse on East High Street in Carlisle, the Dauphin County Courthouse at 101 Market Street in Harrisburg, and the York County Judicial Center at 45 North George Street in York. Each county runs its own ARD program and the District Attorney decides admission.
County guides: Adams County, Cumberland County, Dauphin County, Franklin County, Lancaster County, Perry County, York County.
What did Act 58 of 2025 change?
Act 58 of 2025, signed December 22, 2025, restored ARD for first-offense DUI after Commonwealth v. Shifflett and created a new offense, “DUI following diversion,” at 75 Pa.C.S. § 3802(h).
It applies to a DUI committed within 10 years of completing ARD or a substantially similar program and is sentenced at the second-offense level. It is not retroactive and applies to DUIs on or after December 22, 2025. Read the complete Act 58 guide.
