Montana

Select Law

State Laws
Felony DUI
DUID Zero Tolerance and Per Se Laws
Cannabis Drug-Impaired Driving Laws
DUI Child Endangerment Laws
Enhanced Penalties for High-BAC
DUI Look-back Periods
Open Container - Alcohol
Good Samaritan
Test Refusal
24/7 Programs
Administrative License Suspension/Revocation
Sobriety Checkpoints
Habitual Offender Designation
Drug Evaluation and Classification Program
DUI Courts - Standalone
DUI Courts - Hybrid
Open Container - Cannabis
Cannabis Laws (2023)
DUID: Implied Consent Testing Methods
DUID Affirmative Defense
Anti-Plea Bargaining Statutes
eWarrant Case Study Sites
Preliminary Breath Test (PBT) Laws
Lower BAC legislation
Low BAC
CARS Implementation
Ignition Interlocks
Electronic Warrants (E-warrants) Authorization
Top Detected Drug Category by State (2021)
False Identification - Sanctions
False Identification - Point-of-Sale Policies
No Refusal Programs
Oral Fluid Testing

Felony DUI

Fourth offense

DUID Zero Tolerance and Per Se Laws

Per se limit greater than zero for some drugs

Cannabis Drug-Impaired Driving Laws

THC per se (5 nanograms)

DUI Child Endangerment Laws

Enhanced penalties

Enhanced Penalties for High-BAC

0.16

DUI Look-back Periods

Ten years

Open Container - Alcohol

In compliance with Federal requirements

Good Samaritan

Good Samaritan law enacted

Test Refusal

Administrative penalties

24/7 Programs

Statewide program

Administrative License Suspension/Revocation

ALS/ALR law enacted

Sobriety Checkpoints

Alternative to checkpoints

Habitual Offender Designation

Habitual Offender Law Enacted

Drug Evaluation and Classification Program

51-100 DREs

DUI Courts - Standalone

6-10 DUI Courts

DUI Courts - Hybrid

1-5 Hybrid Courts

Open Container - Cannabis

Cannabis-specific open container law

Cannabis Laws (2023)

Decriminalized

DUID: Implied Consent Testing Methods

Blood and urine

DUID Affirmative Defense

No affirmative defense

Anti-Plea Bargaining Statutes

No Data Available

eWarrant Case Study Sites

Not authorized to use e-warrants

Preliminary Breath Test (PBT) Laws

No Data Available

Lower BAC legislation

No legislation introduced

Low BAC

Low BAC may be considered with other evidence

CARS Implementation

none

Ignition Interlocks

Discretionary

Electronic Warrants (E-warrants) Authorization

Legislation

Top Detected Drug Category by State (2021)

Stimulants

False Identification - Sanctions

Judicial license suspension/revocation

False Identification - Point-of-Sale Policies

No Distinctive License & No Seizure Law

No Refusal Programs

Lacks authorization

Oral Fluid Testing

No authorization