Is DUI a Federal Offense?

Driving under the influence (DUI) or driving while intoxicated/impaired (DWI) cases are generally handled at the state level. But certain limited circumstances can make a DWI/DUI a federal offense. Some cases involve both federal and state DUI charges.

In this article, explore the main factors that can trigger a federal DUI case. You can also see the potential penalties for a federal DUI conviction — as well as ways to avoid them.

If you’re dealing with a federal DUI offense, consider speaking with a DUI attorney or criminal defense lawyer. They can help you understand the range of DUI defense strategies available to you. They may also be able to negotiate with federal prosecutors for reduced charges or penalties, depending on the circumstances.

Learn about federal DUI cases below:

• State Laws Define Most DUI/DWI Crimes
• When Is a DUI a Federal Offense?
• What Does Federal Property Include?
• What Is the Assimilative Crimes Act?
• Can a DUI Offense Involve Both State and Federal Charges?
• Isn’t Federal Property in the U.S. Always in a State?
• State DUI Penalties vs. Federal DUI Penalties
• Legal Defenses to a Federal DUI

State Laws Define Most DUI/DWI Crimes

DUI and DWI are the legal terms used when someone is caught driving while under the influence of alcohol or drugs. Precise definitions vary by state, but many use “DUI/DWI” interchangeably.

Most states regard a blood alcohol concentration (BAC) of 0.08% or higher to be drunk driving. For drugs, there’s no universal limit. Instead, law enforcement can use various tools to determine impairment. These may include:

• Field sobriety tests
• Law enforcement observations
• Chemical tests (urine, blood, and breath tests)

Proving impairment by over-the-counter or prescription drugs is often more difficult than from alcohol or illegal drugs.

DUI/DWIs are generally considered criminal offenses at the state level. Certain circumstances, however, can make a DUI a federal offense.

When Is a DUI a Federal Offense?

If an alleged DUI occurs on federal property, the federal government has the authority to prosecute the incident in federal court.

Similarly, DUI incidents involving impaired driving by on-duty military personnel or federal employees/contractors also fall under federal jurisdiction.

Like most states’ laws, federal law prohibits operating a motor vehicle with a blood alcohol content of 0.08 or higher. Federal DUI laws also address implied consent, which creates an agreement that drivers consent to submit to chemical testing if lawfully arrested for a DUI.

Sometimes, both state and federal charges can apply. In these rare cases, federal and state prosecutors may pursue charges in separate cases.

What Does Federal Property Include?

In the context of DUI incidents, federal property refers to any land or facility that is owned, operated, or controlled by the federal government. Examples include:

• Military bases
• National parks/forests
• Federal courthouses/grounds
• Post offices
• National monuments
• Federally owned parking lots/buildings

A DUI incident on federal property can be prosecuted as a federal crime under federal law. Sometimes, however, the federal government may prosecute the offense under state law through the Assimilative Crimes Act (ACA).

What Is the Assimilative Crimes Act?

The ACA allows the federal government to use state laws for alleged crimes on federal property when there’s no federal law for the specific crime.

For example, let’s say someone drives impaired on a military base or in a national park. If there’s no federal DUI law that fits the situation, the ACA allows the federal government to use the state’s DUI laws instead. It still prosecutes the driver in federal court, but the rules and penalties would come from state law.

The ACA only works in places under federal control, and it doesn’t apply if a federal law already covers the crime.

Can a DUI Offense Involve Both State and Federal Charges?

Yes. Although it’s rare, the federal and state governments may prosecute the same DUI offense if it violates laws in both jurisdictions. This can lead to dual proceedings and overlapping penalties.

For example, let’s say someone’s arrested for DUI while driving through Yellowstone National Park in Wyoming. The federal government could charge the driver because the incident occurred on federal land. It can prosecute the DUI offense in federal court under specific federal DUI statutes. Alternatively, it could prosecute in federal court under Wyoming’s state DUI laws through the ACA.

Additionally, the state of Wyoming may also choose to prosecute. The incident occurred within the state and allegedly violated Wyoming DUI laws. Thus, Wyoming could bring state charges in state court.

Conversely, if the incident occurred at Fort Bragg in North Carolina, the driver would only face federal DUI charges. Military bases are exclusively federal jurisdictions. So, the driver would only face federal charges in federal court. The prosecution may be able to use North Carolina DWI law via the ACA. But exclusive federal jurisdiction means that the state can’t also prosecute.

Isn’t Federal Property in the U.S. Always in a State?

Yes. Federal property in the U.S. is always located within a state or U.S. territory. But it is legally distinct from the state land around it because the federal government owns or controls it. As such, federal law governs in these places. States may have limited or no authority over what happens on federal property.

So, while federal property is geographically within a state, it’s treated as federal territory for legal purposes. That’s why a DUI on federal land can be charged under federal law, even though the same act off of that land would be a state offense.

State DUI Penalties vs. Federal DUI Penalties

State and federal DUI penalties differ mainly in severity, jurisdiction, and consequences. Below, we explore some of the more common penalties at the state and federal levels.

State DUI Penalties

DUI laws vary by state. Still, penalties usually include:

• Fines ranging from a few hundred to several thousand dollars
• Driver’s license suspension/revocation
• Jail time, especially for repeat offenses or high BACs
• Probation
• Community service
• Alcohol or drug education/treatment programs
• Ignition interlock devices

The states penalize DUI convictions in different ways. For example, some states offer diversion programs for first-time offenders, while others impose mandatory jail time.

Federal DUI Penalties

Federal DUI penalties can be more severe. The U.S. Code of Federal Regulations typically categorizes DUIs as class B misdemeanors.

Penalties can include:

• Up to 6 months in federal prison
• Fines up to $5,000
• Probation up to 5 years
• Loss of federal employment or security clearance
• Additional penalties for military personnel

Federal DUIs are prosecuted in federal criminal court, which follows different procedures from state courts. This may impact the effectiveness of certain defense strategies.

Legal Defenses to a Federal DUI

Legal defenses for federal and state DUI charges can be similar. But they also have important differences due to the court systems, procedures, and laws involved.

In state DUI cases, defenses often focus on:

• Unlawful traffic stops
• Improper testing/procedures
• Lack of probable cause for arrest

Many of the same defenses apply to federal DUI cases. In addition, a qualified defense attorney with expertise in federal law/procedures may use differences between state and federal definitions or thresholds for impairment to the defendant’s advantage. They may also:

• Focus on jurisdictional challenges 
• Scrutinize federal procedural requirements
• Challenge whether the correct law was applied

The processes involved in federal cases tend to be more complex. Federal courts follow stricter rules of evidence and procedure. Also, federal prosecutors operate under different guidelines and may have less flexibility or different types of programs available when negotiating plea deals.

Get Legal Advice for a Federal DUI

If you’re facing federal DUI charges, you’ll want to work with an experienced attorney who has in-depth knowledge of federal law, procedure, and the federal court system. You can share the specifics of your case with them confidentially. A lawyer can identify potential defense strategies available to you under the circumstances and help you understand your options. Although rare for federal cases, this may include eligibility for expungement.

Because state law will likely be relevant, your legal advisor should also be licensed in the state where the incident occurred. FindLaw’s directories of DUI lawyers and criminal defense attorneys can get you started. Just click on the right state to review contact and ratings information for local experts. Your search results will also link you to additional details about the attorneys’ experience with federal cases.

Take some time to familiarize yourself with their backgrounds. It’s important to find someone with whom you’re comfortable. Then, enlist the help of a trusted advocate. They just might be your most important ally at this consequential time.