If this is your first OUI, you may be wondering whether a single arrest could cost you your license or land you in jail. If you have been through this before, the word “second” may carry a different weight because Maine’s mandatory penalties rise quickly.

OUI means operating under the influence. Although many people search for information about a DUI in Maine, the state’s legal term is OUI. Maine may bring the charge when it claims you operated or attempted to operate a vehicle while impaired by alcohol or drugs, or with an alcohol level of at least 0.08. Maine OUI penalties depend heavily on whether a qualifying prior offense falls within the state’s 10-year lookback period.

A standard first OUI conviction in Maine has no mandatory minimum jail term, although certain facts can add one. A second OUI conviction requires at least seven days in jail and a three-year court-ordered license suspension.

Below, David J. Bobrow, Office of Law, explains where the penalties begin to separate, what happens to your license, and which parts of the evidence may affect your options.

Where Do the Maine OUI Penalties Split?

Standard first- and second-offense OUI violations are Class D crimes, punishable by up to one year in jail and a fine of up to $2,000.  However, the minimum penalties differ sharply between the two:

These are mandatory minimums, not sentencing caps. The court may impose additional penalties based on the facts and the person’s record.

What Can Add Jail Time to a First OUI?

A first OUI comes with at least 48 hours in jail if your alcohol level was 0.15 or higher, you drove 30 mph or more over the speed limit, tried to get away from police, or had a passenger under 21.

If you refuse a chemical test (such as a blood or breath test), the minimum fine for a first offense goes up to $600, and you must spend at least 96 hours in jail. For a second offense, refusal means a minimum $900 fine and 12 days in jail. Having a passenger under 21 adds 275 days to your license suspension.

How Much More Serious Is a Second OUI?

A second OUI usually means you have one previous OUI offense within the past 10 years. Under OUI laws in Maine, certain out-of-state convictions, juvenile findings, and administrative suspensions for refusing a chemical test may also count.

Your prior record should be verified before the case is treated as a second offense. The date, jurisdiction, disposition, and type of prior suspension may change the classification and mandatory penalties.

Why Is the BMV Case Moving Before the Criminal Case?

An OUI creates a criminal case and a separate Bureau of Motor Vehicles (BMV) license matter. The BMV may impose a 150-day first-offense suspension or a three-year second-offense suspension before the criminal case ends. A hearing request must generally be made within 10 days of the suspension’s effective date.

Time served on an administrative suspension is generally credited toward a later court suspension arising from the same incident. A suspension for refusing a chemical test generally runs consecutively instead.

An ignition interlock device (a breath-testing device connected to the vehicle) may allow earlier reinstatement after other conditions are met. A person with one OUI offense may qualify after 30 days. A person with two OUI offenses may qualify after nine months and must use the device for the remainder of the suspension period.

A second OUI conviction in Maine usually means you cannot register a vehicle or keep plates in your name. However, a family member who regularly uses the car may be eligible for an exception.

What Happens After the First Court Appearance?

After a summons or arrest, you will usually have an arraignment (your first court appearance), where the charge and your plea are discussed. From there, your lawyer will get evidence from the prosecution, such as cruiser video, body-camera footage, test results, police reports, and witness statements.

The case then moves through motion deadlines, negotiations, and, if necessary, trial. Whether an agreement makes sense should depend on the evidence, not simply on the charge shown on the summons. 

Where Can the State’s Evidence Be Tested? 

A focused defense will look closely at the State’s evidence from the start of the traffic stop through the chemical test. Key questions may include:

• Reason for the stop. Did the officer have a lawful basis to stop or approach the vehicle?
• Proof of operation. Can the State show the accused person operated or attempted to operate?
• Impairment observations. Do video and witness accounts support the officer’s conclusions?
• Testing procedures. Were breath, blood, or drug-testing requirements followed?
• Refusal warnings. Did police provide the required warning?
• Prior-offense status. Does the earlier matter count under Maine’s 10-year framework?

The answers may affect whether evidence is admitted, how the charge is classified, and whether the case should be negotiated or tried.

What Consequences Reach Beyond the Courtroom?

The practical impact of an OUI conviction in Maine often depends on whether you drive for work, hold a commercial license, or need a vehicle to care for your family.

Commercial drivers must also follow separate federal rules. A first OUI conviction usually means losing your commercial license for one year, or three years if you were transporting hazardous materials. A second qualifying conviction generally results in a lifetime commercial driving disqualification, although reinstatement may be possible after 10 years if specific rehabilitation requirements are met.

What Should You Do Before the Next Court Date?

A few immediate steps may help protect your position:

• Keep the summons, bail conditions, towing records, and BMV notices;
• Write down what happened while the details remain fresh;
• Do not drive if your license is suspended;
• Avoid discussing the case online or with potential witnesses; and
• Ask counsel to check the BMV deadline, prior record, and available video or test evidence.

That preparation gives your lawyer a faster and more reliable starting point for reviewing the stop, testing, prior record, and license deadline. 

Know What You Face Before You Decide What Comes Next

An OUI charge label does not tell you whether the stop was lawful, the testing was reliable, or a prior matter counts against you. Those details can shape both the criminal case and the license consequences.

David J. Bobrow, Office of Law, brings more than two decades of courtroom experience to serious criminal cases. He has won bench and jury trials in Maine, New Hampshire, and Massachusetts. David has been honored as a Best Lawyers awardee in 2025, 2026, and 2027, and has been recognized on the Super Lawyers list from 2022 through 2026.

Our office can review the evidence, identify urgent BMV deadlines, and explain the risks of each available path. Contact us before your next court date to discuss what happened and what should be challenged.

Legal References Used to Inform This Page:

To ensure the accuracy and clarity of this page, we referenced official legal and other resources during the content development process:

• Maine Revised Statutes, Title 29-A, § 2411: Criminal OUI and Penalties.
• Maine Revised Statutes, Title 29-A, § 2521: Implied Consent and Test Refusals.
• Maine Bureau of Motor Vehicles, Operating Under the Influence Information.
• Maine Revised Statutes, Title 29-A, § 2401: OUI Definitions.
• Maine Revised Statutes, Title 17-A, § 1604: Maximum Terms of Imprisonment.
• Maine Revised Statutes, Title 17-A, § 1704: Maximum Fine Amounts.
• Maine Revised Statutes, Title 29-A, § 2508: Ignition Interlock Devices.
• Maine Revised Statutes, Title 29-A, § 2416: Registration Suspension by Court.
• Maine Judicial Branch, Criminal Cases.
• Electronic Code of Federal Regulations, Commercial Driver Disqualification Rules.