Pay reinstatement fees online via the MVD portal immediately after your suspension ends. Processing at the Driver Control Bureau in Helena can take 10-15 business days by mail, delaying your ability to retest. For alcohol-related suspensions, you must complete Alcohol and Crash Training (ACT) course details available at opi.mt.gov driver education page.

For SR-22 insurance requirements and high-risk reinstatement details, visit mvdmt.gov/suspensions-revocations. Download the complete Montana Driver Manual with GDL rules at mvdmt.gov/driver-handbook.

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Montana DUI With a Learner Permit: Under-21 0.02 Rule, DUI Penalties and License Effects

Montana has separate alcohol and drug rules that can affect a learner-permit holder. For drivers under 21, an alcohol concentration of 0.02 or more is a separate offense with its own penalty structure; standard DUI provisions have different elements and penalties. The licensing effect depends on the actual offense, conviction, and any separate administrative action.

Quick Navigation

Under-21 0.02 Rule and Related Penalties
Criminal Penalties and Legal Proceedings
Long-Term Impact on Licensing and Insurance

Under-21 0.02 Rule and Related Penalties

For drivers under 21, Montana's 0.02 alcohol rule is separate from the standard DUI statutes. A first conviction under the under-21 0.02 provision can bring a $100-$500 fine, a 90-day suspension, and court-ordered chemical-dependency education or treatment.

Offense Type	Core Difference
Under-21 0.02 offense	Applies to a driver under 21 at or above the 0.02 threshold and has its own penalty structure.
Standard DUI / 0.08-based or impairment offense	Uses the separate DUI statutes and can carry different fines, jail exposure and repeat-offense rules.

Under 18: a traffic or alcohol/drug violation also affects GDL advancement because the teen must have a clean six-month period before moving beyond the learner stage. Do not apply that teen GDL rule to every permit holder under 21.

Can a Driver Under 21 Get a DUI With a BAC Below 0.08 in Montana?

Yes. A driver under 21 can face Montana's separate 0.02 alcohol-concentration offense even below 0.08, and an impairment-based DUI can also depend on the driver's actual impairment rather than only a single BAC number.

Does Montana's Under-21 Zero-Tolerance Law Apply to THC?

Montana's under-21 statute also separately addresses detected THC. Do not treat the alcohol 0.02 threshold as the only substance rule that can affect an under-21 driver.

Criminal Penalties and Legal Proceedings

Do not combine the under-21 0.02 offense with the penalties for standard DUI. For a first standard impairment-based DUI under MCA 61-8-1002(1)(a), the jail term includes at least 24 consecutive hours and can extend up to six months, plus the applicable fine. Twenty-four hours is not the maximum.

The under-21 0.02 offense has its own court and treatment requirements. It also may not be counted as a prior conviction under the ordinary DUI repeat-offense penalty provisions.

What Happens if a Montana Permit Holder Refuses a DUI Chemical Test?

Montana's implied-consent rules can create a separate administrative license consequence when a qualifying chemical test is refused. That process is separate from any criminal DUI charge, so the driver may face licensing action even before the criminal case is resolved.

Real experiences from the Shoro.ai community

Real experiences from the Shoro.ai community