Can I Be Charged with DUI if My BAC Is Under 0.08%?
Most drivers assume that staying under the 0.08% blood alcohol limit means they cannot be charged with DUI. In Pennsylvania, that assumption is wrong. The 0.08% threshold is only one way the Commonwealth can prove impaired driving. If you have been charged with DUI despite a lower BAC, our State College DUI lawyers at Decker Bradburn can explain what the prosecution must prove and where their case may fall short.
Pennsylvania’s General Impairment Law
Under Pennsylvania’s DUI statute, a driver may not operate a vehicle after drinking enough alcohol to be incapable of driving safely. You might notice that a specific number is missing from that language. This is known as the general impairment provision, and it allows prosecutors to bring charges based on how you were driving rather than what a test showed. If an officer observed you swerving, running a stop sign, or reacting slowly, those observations can support a DUI charge even with a BAC of 0.05% or 0.06%.
What Evidence Replaces the BAC Number?
Without a BAC of 0.08% or higher, the prosecution builds its case on other evidence. This typically includes the officer’s account of your driving, your appearance and speech during the stop, your performance on field sobriety tests, and any statements you made. Each piece of this evidence can be challenged. Field sobriety tests are subjective, and factors like uneven pavement, poor lighting, medical conditions, or nervousness can explain results that an officer attributed to alcohol.
Lower Limits for Certain Drivers
Some drivers face stricter thresholds. Consider:
- Drivers under 21 can be charged with a BAC of just 0.02%, which can result from a single drink
- Commercial drivers are held to a 0.04% limit
- School vehicle drivers face a 0.02% limit as well
For these drivers, a reading well below 0.08% supports a charge on its own.
Drugs and Combined Impairment
The 0.08% limit only applies to alcohol. Pennsylvania law separately prohibits driving under the influence of drugs, including certain prescription medications, or a combination of drugs and alcohol. In these cases, no alcohol threshold applies at all, and a driver with a modest BAC plus another substance in their system can face a DUI charge.
Why These Cases Are Often Defensible
A DUI charge without a 0.08% BAC reading forces the prosecution to rely on opinion evidence, and opinion evidence can be questioned. Our defense team will examine whether the officer had a lawful basis for the stop, whether field sobriety tests were administered properly, and whether innocent explanations exist for the behavior described in the police report. In many cases, the answer creates reasonable doubt.
Speak with Our State College DUI Lawyers Today
A DUI charge threatens your license, your record, and your future, regardless of what the breathalyzer said. At Decker Bradburn, our State College DUI attorneys will review every detail of your stop and arrest to build the strongest available defense. To schedule your consultation, contact our office online or by calling (814) 308-8895.