Hawaii Underage DUI: Under 21 Zero-Tolerance Law

Hawaii's Zero-Tolerance Threshold Is 0.02%, Not 0.08%

Drivers under 21 in Hawaii are subject to a zero-tolerance standard for alcohol. The legal limit drops from the standard 0.08% to just 0.02% BAC — effectively any measurable amount of alcohol. This isn't a reduced version of the adult OVUII statute; it's a separate enforcement framework under HRS § 291E-64 that applies specifically to underage drivers.

The 0.02% threshold is so low that a single drink can trigger a violation. The standard breathalyzer margin of error can overlap with this limit, which is why the statute effectively functions as a zero-tolerance policy: if you're under 21 and you've consumed any alcohol, driving puts you at risk of an enforcement action.

How Underage DUI Penalties Differ from Adult Penalties

The consequences for an under-21 violation are structured differently from a standard adult OVUII, though they still involve both administrative and potential criminal tracks:

Administrative revocation: The ADLRO imposes a license revocation, following the same procedural timeline as an adult case — 30-day temporary permit, 3-day reconsideration window, 6-day hearing request deadline. The revocation period may differ from the standard adult 1-year term, depending on the specific circumstances and whether the under-21 statute or the standard OVUII statute is charged.

Criminal exposure: If the under-21 driver's BAC reaches 0.08% or higher, they can be charged under the standard adult OVUII statute (HRS § 291E-61) in addition to or instead of the under-21 provision. At that point, all the standard first-offense penalties apply — $250–$1,000 fines, 48 hours to 5 days jail or 72 hours community service, 14-hour substance abuse program, and 1–18 months license revocation with mandatory interlock.

CDL considerations: Underage drivers who hold or are pursuing a commercial driver's license face the 0.04% CDL threshold on top of the 0.02% zero-tolerance limit, plus the mandatory 1-year CDL disqualification for any OVUII violation.

The Unique Expungement Pathway for Minors

Here's where under-21 cases differ most significantly from adult cases. Hawaii law provides a specific expungement pathway for youthful offenders convicted under the underage DUI statute that does not exist for standard adult OVUII convictions.

Under HRS § 291E-64(e), individuals convicted of operating a vehicle with a measurable amount of alcohol while under 21 may petition the court for an expungement order after they turn 21, provided:

• They have reached 21 years of age
• They have had no subsequent drug- or alcohol-related law enforcement contacts since the conviction
• The conviction was under the underage-specific statute, not the standard adult OVUII

This is the sole statutory exception for expunging an impaired driving conviction in Hawaii. Adult OVUII convictions under HRS § 291E-61 are classified as permanent criminal records and are explicitly excluded from both standard and proposed automatic expungement pathways.

The practical significance is substantial. A clean underage conviction that gets expunged after age 21 won't show up on background checks for employment, housing, or professional licensing. For a young person early in their career, this pathway can prevent a single mistake from becoming a permanent barrier.

The Standard Administrative Process Still Applies

Despite the different BAC threshold and the expungement pathway, the ADLRO administrative process works the same way for under-21 drivers as for adults:

1. Day 0: License confiscated at arrest, NOAR issued as temporary 30-day permit
2. Day 3: Deadline to file written reconsideration (Form 12) with the ADLRO
3. Day 8: ADLRO issues written review decision
4. Days 8–14: 6-day window to request an administrative hearing (Form 8, $30 fee)
5. Day 30: Temporary permit expires — driving without a permit or IIP is illegal

Missing any of these deadlines results in automatic administrative revocation, regardless of the driver's age. The ADLRO does not make exceptions for underage drivers, and the timelines are not extended.

Substance Abuse Assessment for Minors

Under-21 drivers who are administratively revoked are referred to the Division of Driver Education for a mandatory substance abuse assessment, just like adult drivers. The counselor evaluates the driver's alcohol use history and determines whether treatment beyond the minimum 14-hour rehabilitation program is needed.

For younger drivers — particularly those under 18 — the assessment may carry additional considerations around family involvement and age-appropriate treatment programming. Parents or guardians may be involved in the assessment process for minors.

The assessment cost runs approximately $100 to $150, consistent with the adult fee schedule. The 14-hour program and any additional recommended treatment must be completed before the ADLRO will issue a relicensing clearance form.

Protecting Future Opportunities

An underage DUI arrest is frightening, but it's important to know that Hawaii law provides options that don't exist for adult drivers. The expungement pathway under HRS § 291E-64(e) means a single incident doesn't have to define the rest of your life — but only if the immediate administrative and criminal processes are handled properly.

Our Hawaii First-Offense DUI Guide covers the complete dual-track process including the specific provisions that apply to under-21 drivers, with deadline calendars and reinstatement checklists to keep you on track through both the administrative and criminal systems.

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