Yes, you can challenge a breathalyzer in a Massachusetts OUI case, and you can appeal the license suspension that comes with a failed or refused test. But you deserve a straight answer before you spend money chasing either one: throwing out the breath test number is harder than most websites suggest, and a breath test refusal suspension appeal is a narrow process that often resolves too slowly to do much practical good. For some drivers, fighting is clearly worth it. For others, the smarter move is understanding what each fight can and cannot accomplish.
Here is what actually happens, and where your effort is best spent.
What Are The Two Separate Battles After an OUI Breath Test Arrest?
An OUI arrest involving a breath test sets two different things in motion, and they run on separate tracks with separate rules.
The first is your criminal case in court, where the question is whether the breath test result can be used as evidence to convict you. The second is your driver’s license, which the Registry of Motor Vehicles (RMV) suspends administratively the moment you fail or refuse the test, before you ever see a courtroom.
Winning one does not automatically win the other. You can suppress the breath test in court and still serve the license suspension. You can get your license back and still face the criminal charge. Treating these as one problem is the most common mistake drivers make.
What is the 15-minute observation period rule?
That observation period is the most productive target. State regulations require the operator to watch you for a full fifteen minutes immediately before the test so that a burp, a hiccup, or anything entering your mouth cannot contaminate the result. In Commonwealth v. Pierre, the Appeals Court threw out a breath test where the officer could not show real compliance with that rule. If a booking video shows the officer distracted or the clock cut short, that is a genuine opening.
What are the realistic odds of beating a breath test?
Be realistic about the odds. These challenges succeed only when there is a specific, provable failure in your case, not because the machine is generally suspect.
You may have heard about the statewide breathalyzer scandal, Commonwealth v. Ananias, which exposed serious misconduct at the state’s Office of Alcohol Testing and led to years of excluded results. That fallout is largely behind us for current cases. The Office of Alcohol Testing has since earned national accreditation, the moratorium on using breath tests ended in 2022, and results from Draeger Alcotest 9510 machines certified on or after April 18, 2019 are admissible again. The systemic argument that once knocked out breath tests across the board is no longer available. What remains is case-by-case scrutiny, which takes a trained eye and a cooperative set of facts.
Does suppressing the breath test end the OUI charge?
One more honest point: even a successful challenge usually does not end your case. Massachusetts lets prosecutors prove OUI two ways. One is the “per se” route, where a result of .08 or higher is enough on its own. The other is the impairment route, built on the officer’s observations, your driving, and field sobriety tests. Suppress the number and you defeat the per se theory, but prosecutors can still try to prove you were impaired. Knocking out the breath test improves your position. It rarely makes the charge disappear.
How Do You Fight a Breath Test License Suspension in Massachusetts?
The license side depends entirely on whether you failed the test or refused it.
What happens if you fail the breath test?
If you failed the test (a result of .08 or higher, or .02 if you are under 21), the RMV imposes a suspension of up to 30 days that ends on its own at 30 days or when your case is resolved, whichever comes first. You can appeal it in the District Court within ten days. There is little to gain: the suspension is short and self-terminating, so by the time an appeal is heard it has usually run anyway. The main lasting cost is the reinstatement fee.
What happens if you refuse the breath test?
If you refuse the test, the stakes are higher. A first refusal costs you 180 days. The period climbs to three years with a prior offense or if you are under 21, five years with two priors, and up to a lifetime loss for drivers with serious records or prior alcohol-related vehicular injury or homicide. The suspension takes effect immediately, with no grace period and no hardship or “work” license available while it runs.
What happens at an RMV breath test refusal hearing?
To fight it, you can request a hearing at the RMV within fifteen days, where the hearing officer reviews only three narrow questions: did the police have reasonable grounds to believe you were driving under the influence, were you under arrest, and did you actually refuse.
If the RMV rules against you, you can appeal to the District Court within thirty days, but the court only reviews the existing record to decide whether the RMV’s decision was unsupported by the evidence or arbitrary.
Does the Board of Appeal handle breath test suspension appeals?
One point is worth correcting, because it confuses many people. A breath test refusal suspension appeal does not go to the Board of Appeal on Motor Vehicle Liability Policies and Bonds. The Board has no jurisdiction over breath test refusal or failure suspensions.
Those go to the RMV and the District Court. The Board of Appeal handles other RMV suspension and hardship-license decisions, which can matter later if you are convicted, but not the breath test suspension itself.
Why Does Winning a Suspension Appeal Matter Less Than Most People Hope?
Even when a refusal suspension can be appealed, the grounds are narrow and the calendar works against you. A District Court appeal of an administrative suspension can take weeks or months to be heard and decided, and a meaningful portion of a 180-day suspension may run before you get an answer. Because the standard is hard to meet and no hardship license is available in the meantime, the practical payoff on a short first-offense suspension is often small.
Can Beating The Criminal Charge Restore Your License?
For many drivers, the strongest path back to a license is not the administrative appeal at all. It is winning or resolving the criminal case. If you are acquitted or your case is dismissed, you can ask the court to restore your license, and the law presumes restoration unless prosecutors show it would likely endanger public safety. Beating the charge often does more for your license than fighting the suspension directly.
When Is Challenging The Breath Test Absolutely Worth It?
The calculus changes when the suspension is long, or the charge is severe. If you are facing a three-year, five-year, ten-year, or lifetime suspension as a repeat offender, every month you can save is worth fighting for, and a successful evidentiary challenge can reshape the entire case. The same is true when a breath test result is central to an OUI causing serious bodily injury or a motor vehicle homicide charge, where a conviction carries years in prison.
Commercial license holders, who face a disqualification that can end a career, also have far more on the line than the suspension alone suggests. In these cases, scrutinizing every detail of the breath test and the suspension is not optional. It is essential.
Can Old OUI Convictions Be Overturned Because of the Massachusetts Breathalyzer Scandal?
If you were convicted or pleaded to an OUI involving a breath test between June 2011 and April 2019, the Ananias fallout may still help you. Tens of thousands of drivers from that window received notice that their breath test may have been unreliable, and many have grounds to ask a court to vacate the conviction or grant a new trial. That is a separate process from defending a current charge, and it is worth asking an attorney whether your old case qualifies.
Should You Talk To An Attorney Before Challenging a Breathalyzer or Suspension?
Whether it makes sense to challenge your breathalyzer results or appeal your license suspension depends on the specific facts of your traffic stop, your driving record, and what is at stake. An experienced Boston criminal defense attorney can evaluate your case and give you an honest assessment based on the evidence—not false hope.
If you or a family member is facing an OUI charge in Massachusetts, the Law Office of Matthew W. Peterson offers free consultations for criminal charges. Call or text 617-295-7500, or send us a message below.
