Underage DUI with Idaho Permit: 0.02% BAC Zero Tolerance, Suspension, SR-22

Getting a DUI with a learner's permit in Idaho triggers severe penalties under the state's Zero Tolerance Law.

Getting a DUI with a learner's permit in Idaho triggers severe penalties under the state's Zero Tolerance Law. Idaho's Zero Tolerance Law sets the BAC limit at 0.02% for drivers under 21. This results in immediate license revocation, criminal charges, and long-term financial burdens.

Idaho's Zero Tolerance Law for Permit Holders

Idaho's under-21 alcohol rule applies at a BAC of 0.02% or higher and below 0.08%; a BAC of 0.08% or higher is handled under the adult DUI threshold regardless of age.

For an adult, the limit is 0.08%.
This strict standard applies statewide, including in Ada, Canyon, Bonneville, Kootenai, and Twin Falls counties.
A single drink can lead to an arrest for an underage DUI with a permit.

Can drugs cause a DUI or ALS on an Idaho learner's permit?

Yes. Idaho's ALS process can follow a failed blood, breath, or urine evidentiary test, and ITD specifically addresses ALS cases involving positive drug tests. DUI is not limited to alcohol.

What happens if an under-21 permit holder has a BAC of 0.08% or higher? The 0.02-to-under-0.08 under-21 rule is no longer the only issue. At 0.08% or higher, the driver can be handled under Idaho's standard DUI threshold as well as any permit or GDL consequences that apply.

SIP Cancellation, ALS and DUI Suspension

DUI-related consequences can come from more than one process. For a first under-21 DUI conviction at 0.02% to under 0.08% BAC, Idaho's driving-record guide lists a one-year suspension. Administrative License Suspension (ALS) is a separate process tied to evidentiary testing.

Process	What It Does
SIP / GDL consequence	A traffic-law conviction during the supervised period can cancel the SIP and disrupt the GDL timeline.
Administrative License Suspension (ALS)	For a first failed evidentiary test, ALS is 90 days: the first 30 days are absolute and the remaining 60 days may be eligible for restricted driving under the ALS rules.
Criminal DUI conviction	The court case is separate. A first under-21 0.02% to under 0.08% conviction carries the one-year suspension listed by ITD, while 0.08% or higher uses the adult DUI penalty framework.

What happens if an Idaho permit holder refuses a breath or blood test?

Refusal is a separate court suspension process. A first refusal brings a one-year suspension and a second refusal within 10 years brings a two-year suspension. The driver has seven days from the refusal to request a hearing. Idaho's current DUI/ALS fact sheet says no restricted driving permit is available during a refusal suspension.

Does a DUI cancel my SIP and restart the six-month permit period?

For a teen still in the supervised SIP period, a DUI-related traffic conviction can create a GDL consequence in addition to ALS or a court DUI suspension. If the SIP is canceled for the supervised-period violation, the teen must obtain a new permit and complete a new supervised period before progressing.

Criminal Penalties and Court Proceedings

An underage DUI is a misdemeanor criminal charge under Idaho Code 18-8004. The case proceeds through the local county court where the arrest occurred.

All Idaho permit requirements are covered in the Idaho permit guide.

Penalty	Detail
Fines	Up to $1,000 for a first DUI conviction, plus applicable court costs and other case expenses.
Jail Time	Up to 6 months in jail, though less common for first offenses.
Alcohol Education	Mandatory substance abuse evaluation and classes at your expense.
Criminal Record	The conviction remains on your record for over 10 years.

Insurance filing: A DUI conviction can require SR-22 proof for reinstatement. Detailed premium effects belong on the Insurance Cost Impact page.

Quick check: Bring certified copies of all completed program certificates (like alcohol education) to your court hearing to avoid a continuance that can delay your case for 30 days.

Long-Term Consequences and Reinstatement

The impact of a DUI extends far beyond the initial penalty. Reinstating your license is a complex, costly process.

SR-22: Idaho requires SR-22 proof for three years after a DUI conviction as part of the reinstatement requirements.
Employment & Education: A criminal record can affect job prospects, college admissions, and housing applications.
Reinstatement Fees: You must pay a $285 reinstatement fee to the ITD for the DUI conviction. A separate $245 fee applies if you received an Administrative License Suspension.

Double-Check This: Verify your SR-22 filing is active with the ITD online portal 10 days after your insurer submits it. An inactive filing is a common rejection reason for reinstatement applications, causing a 2-week processing delay.

?? Reinstatement path: DUI and ALS are separate actions, so reinstatement can involve separate fees and filing requirements. The $285 DUI reinstatement fee and separate $245 ALS fee apply when those actions occur.

Can I get a restricted driving permit after a DUI or ALS?

The answer depends on which suspension applies. For a first ALS, the first 30 days are absolute and the driver may be eligible to apply through ITD for a restricted permit during the remaining 60 days. A restricted permit during a DUI court suspension is handled through the court. A refusal suspension has different rules and does not allow a restricted driving permit under the current ITD fact sheet.

How long do I need SR-22 after an Idaho DUI?

ITD's current DUI/ALS fact sheet says SR-22 is required for three years beginning at the end of the DUI suspension.

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