Oct 8th, 2025
¿Qué sucede si te niegas a una prueba de alcoholemia en Oregón?

Imagine flashing lights in your rearview mirror, an officer leaning in, and the question: “Will you take a breath test?”
In that moment, your answer has real consequences. In Oregon, refusing a breath test might keep the state from getting a hard number on your blood alcohol content (BAC)—but it also sets off automatic, often harsher, penalties under the Oregon Implied Consent Law.
The truth is, there’s no one-size-fits-all answer. Whether refusal helps or hurts depends on your history, priorities, and the facts of the stop. Let’s break down how Oregon law works, what “refuse breathalyzer Oregon” really means, and what you can expect if you say yes—or no.
Oregon’s Implied Consent Law
When you drive in Oregon, you automatically agree to take an evidentiary breath, blood, or urine test after a DUII arrest if an officer has reasonable grounds to believe you’re impaired. This is called the Ley de consentimiento implícito.
Before administering a test, officers must read you a “Rights and Consequences” form, which explains what happens if you refuse—or fail—the test. This advisement is important: if the officer doesn’t give it properly, the test results or refusal might later be challenged.
Key point: implied consent only kicks in after arrest. Until that point, you are not legally required to answer questions about drinking or to perform field sobriety tests.
No Roadside Breath Test in Oregon
Unlike many states, Oregon does not rely on portable roadside breath tests (PBTs) before arrest. Instead, the breath test that matters is the evidentiary test given after arrest, usually at a police station or detox center with an Intoxilyzer 8000 machine.
This means if you’re asked to blow into a handheld device at the roadside, you can refuse without the same implied consent penalties. It’s the station test—the evidentiary test—that carries serious legal consequences.
What Happens If You Refuse a Breath Test?
Refusing a breath test sets off a chain of administrative penalties through the DMV, separate from any criminal DUII case. Here’s what you face:
1. License Suspension
First refusal: 1-year suspension
Refusal with certain priors within 5 years: 3-year suspension
2. Hardship Permit Waiting Period
For a first refusal, you may apply for a limited hardship permit only after 90 days.
For longer suspensions, you may not qualify at all for months or years.
3. Evidence at Trial
Your refusal can be introduced in court as evidence of “consciousness of guilt.” Oregon law allows prosecutors to argue you refused because you knew you would fail (ORS 813.310).
4. Civil Penalty
A refusal can result in a civil penalty fine of $650 (separate from criminal fines).
5. CDL Consequences
If you hold a Commercial Driver’s License (CDL), refusal is devastating. A first refusal typically means at least a 1-year CDL disqualification, even if you weren’t driving a commercial vehicle at the time.

What If You Take the Breathalyzer Test and Fail?
Submitting to the test doesn’t mean avoiding penalties. If your BAC is 0.08% or higher (or any alcohol if you’re under 21), DMV will suspend your license:
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First failure: 90-day suspension (hardship permit possible after 30 days)
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With priors: 1-year suspension
These suspensions are administrative—they come from DMV and are separate from any criminal penalties the court may impose if you’re later convicted of DUII.
The DMV Hearing: The 10-Day Rule
Here’s one of the most critical deadlines: you have only 10 days from the date of arrest to request a DMV hearing.
If you don’t, the suspension begins automatically, and you lose the chance to contest it.
At the hearing, your attorney can question:
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Whether the officer had legal grounds for the stop and arrest
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Whether the implied consent rights were read correctly
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Whether the machine was working and properly calibrated
Sometimes, winning the DMV hearing keeps you driving while your criminal case unfolds. It can also expose weaknesses in the state’s case.
Why Some People Refuse
Drivers sometimes refuse a breath test because:
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They don’t want to hand the state hard scientific evidence of their BAC.
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They believe refusal will make it harder for the prosecutor to prove impairment.
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They feel the stop was unfair and don’t want to cooperate further.
And it’s true: in some cases, refusal makes the prosecution’s job harder, especially if the only evidence is the officer’s observation and no chemical test result.
Why Refusal Can Backfire
On the other hand, refusal has very real costs:
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Longer suspension: 1–3 years vs. 90 days for a first failure
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Hardship permit delay: 90 days vs. 30 days
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Refusal as evidence: Prosecutors can tell the jury you refused
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Civil fine: $650 added penalty
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CDL holders: career-ending disqualification for many drivers
For many first-time offenders, refusing can make things worse, not better.
Already Refused or Failed? What to Do Now
If you’ve already refused—or failed—the test, the most important thing is to act quickly:
- Request your DMV hearing immediately (within 10 days).
- Call a trusted DUII defense attorney to review the stop, the advisements, and the test.
- Check hardship permit eligibility so you know when you can drive again.
- Remember: DMV and criminal courts are separate—each can impose suspensions, and they may overlap.
The Bigger Picture: DUII in Oregon
Breath tests are only one part of Oregon’s approach to impaired driving. DUII arrests are common: in 2022, more than 25,000 people were arrested for DUII in Oregon, and impairment is a factor in about one-third of all fatal crashes statewide.
These numbers explain why Oregon has tough laws—and why both refusals and failures carry heavy consequences.
The Bottom Line – Should You Refuse?
There’s no simple answer. Refusal may help at trial, but it comes at the cost of a much longer suspension, possible civil penalties, and CDL consequences. Taking the test may shorten your suspension, but it hands the state strong evidence.
If you’ve been arrested for DUII—whether you refused, failed, or just don’t know what to do next contact Gilroy Napoli Short Law Group today for a free consultation. Our Oregon criminal defense attorneys, including former prosecutors, know how Oregon DUII cases are built and how to challenge them. Protect your license, your record, and your future by getting experienced help now.















