Michigan’s Super Drunk Law: What Happens When BAC Is .17 or Higher

Michigan’s “Super Drunk” law was enacted in 2010 to impose heightened consequences on drivers arrested with extremely high blood alcohol levels. The statute recognizes that a BAC of .17 or above represents a significantly greater danger on the road than a BAC just over the legal limit. For anyone facing this charge, understanding both the enhanced penalties and the available defense strategies is critical — because a Super Drunk conviction carries consequences that affect your license, your freedom, and your daily life for nearly a year.

Super Drunk Penalties vs. Standard OWI

The differences between a standard first OWI and a Super Drunk charge are substantial. Both are misdemeanors for a first offense, but the penalties diverge significantly:

• Jail time: Standard OWI carries up to 93 days. Super Drunk carries up to 180 days.
• Fines: Standard OWI fines cap at $500. Super Drunk fines reach up to $700, plus court costs and assessments that can add thousands more.
• License suspension: Standard OWI results in a 30-day hard suspension followed by 150 days restricted. Super Drunk results in a 45-day hard suspension followed by 320 days restricted — and the restricted license requires a mandatory BAIID.
• Ignition interlock (BAIID): Not mandatory for standard first OWI. Mandatory for the entire restricted period under the Super Drunk law.
• Community service: Up to 360 hours for both, but courts tend to impose more hours in Super Drunk cases.
• Vehicle immobilization: Possible under both statutes, but more commonly ordered in Super Drunk cases.

What the Prosecution Must Prove

To convict under the Super Drunk statute, the prosecution must prove two things beyond a reasonable doubt:

• That you were operating a motor vehicle on a public road or area open to the public
• That your BAC was .17 or higher at the time of operation

The second element is where most defenses focus. The prosecution relies on breath or blood test results to establish the BAC, and those tests are not infallible. Challenging the accuracy and reliability of the BAC evidence is often the most effective defense strategy in a Super Drunk case.

Defense Strategies for High-BAC OWI Cases

A Super Drunk charge is not automatically a Super Drunk conviction. Several defense strategies apply specifically to high-BAC cases:

Challenging the breath test (DataMaster):

• The DataMaster device must be properly calibrated and maintained according to a specific schedule. Maintenance logs and calibration records are discoverable, and gaps or irregularities can undermine the test result.
• The operator must follow a 15-minute observation period before administering the test. If the officer did not continuously observe you for 15 minutes — ensuring you did not burp, vomit, eat, drink, or smoke — the result may be challenged.
• The officer administering the test must be properly certified as a DataMaster operator. Expired or inadequate training can be grounds for suppression.

Challenging the blood test:

• Blood draws must follow strict chain-of-custody protocols. Any break in the chain — from collection to transport to lab analysis — can call the result into question.
• The blood sample must be properly preserved with the correct anticoagulant and preservative. Improper preservation can cause fermentation, artificially raising the BAC reading.
• Your attorney can request an independent analysis of the blood sample to verify the state’s results.

The rising blood alcohol defense:

• Alcohol takes time to absorb into your bloodstream. If you had your last drink shortly before driving, your BAC may have been below .17 while you were actually driving but rose to .17 or above by the time the test was administered at the station. This is known as the “rising BAC” defense, and it can be supported by expert toxicology testimony.

Medical conditions affecting test results:

• Gastroesophageal reflux disease (GERD) can cause stomach alcohol to be pushed into the mouth and throat, artificially inflating a breath test reading.
• Diabetes and certain diets (particularly ketogenic diets) can produce acetone in the breath, which some breath testing devices may read as ethanol, producing a falsely elevated BAC.

Plea Negotiation: Reducing a Super Drunk Charge

One of the most important aspects of OWI defense in a Super Drunk case is the possibility of a plea reduction. Prosecutors have discretion to reduce a Super Drunk charge to:

• Standard OWI (MCL 257.625(1)(a)) — This eliminates the mandatory BAIID requirement and reduces the license suspension from 45+320 days to 30+150 days. Jail exposure drops from 180 to 93 days.
• Operating While Visibly Impaired (OWVI) (MCL 257.625(3)) — An even further reduction, carrying up to 93 days in jail, fines up to $300, and a 90-day restricted license with no hard suspension.

Whether a reduction is available depends on several factors: the strength of the BAC evidence, your criminal history, the specific facts of the stop and arrest, and the policies of the particular prosecutor’s office. Successfully identifying weaknesses in the BAC evidence — calibration issues, observation period violations, chain-of-custody problems — significantly strengthens your negotiating position.

What to Expect After a Super Drunk Conviction

If convicted of Super Drunk OWI, you should expect the following timeline:

• Days 1–45: Complete license suspension. You cannot drive for any purpose.
• Days 46–365: Restricted license with mandatory BAIID. You may drive to work, school, court-ordered programs, and medical appointments. Every start requires a clean breath sample.
• Probation: Typically 12–18 months, often including substance abuse treatment, random testing, and regular check-ins with a probation officer.
• After 5 years: A first-offense Super Drunk conviction is eligible for expungement under Michigan’s expanded expungement law.

Frequently Asked Questions About Michigan’s Super Drunk Law