Drunk and drugged driving laws in Alaska
The manual says almost 45 percent of traffic deaths in Alaska each year involve alcohol. Alaska answers with two separate systems: criminal penalties from the courts and license revocation by the DMV, which can happen even if the court case is dropped.
For drivers under 21 the rule is simple: any alcohol at all before driving is an offense.
By the end of this topic you can
- You can state the legal alcohol limits for adults and for drivers under 21.
- You can explain implied consent and what refusing a test leads to.
- You can describe DMV revocation periods for a first offense.
- You can explain how drugs, including legal ones, fall under the DUI law.
- You can plan a safe way home that does not involve impaired driving.
What you need to know and understand
- A breath or blood alcohol concentration of .08 or more means you are presumed to be driving under the influence (DUI).
- Under 21, driving after drinking any amount of alcohol is the offense of minor operating after consuming.
- By driving in Alaska you consent to a breath test after a lawful DUI arrest. Refusing brings a separate criminal charge as well as DUI.
- A breath result of .08 or more, or a refusal, leads to DMV revocation: 90 days for a first offense, rising to 1, 3 or 5 years with prior convictions.
- Under 21, a test showing any alcohol, or a refusal, means DMV revocation of 30 days for a first offense, even if the court case is dismissed.
- You have 7 days from the notice to ask in writing for an administrative hearing.
- A first DUI or refusal conviction requires an ignition interlock device for at least 6 months.
- DUI carries 10 points on your driving record.
Drugs count too
Alaska's law covers driving under the influence of any controlled substance, not just illegal drugs, and the penalties are the same as for alcohol. Prescription medicines and some cold and allergy remedies can cause drowsiness. Mixing alcohol with other drugs makes the effects stronger. The manual does not single out cannabis, so treat it like any other drug that affects your driving: if you have used it, do not drive.
Penalties for drivers under 21
- DMV revocation: 30 days for a first offense, 60 days for a second, 90 days for a third and 1 year after that.
- Court: minor operating after consuming, or refusing a test, is an infraction. The court must order community service, a fine of up to $1,000, or both.
- Minor operating after consuming adds 6 points to your record.
- Using a fake license to get alcohol can bring a 60-day revocation for a first offense.
- A provisional driver with an alcohol conviction cannot have provisional restrictions removed early.
Myths that get people arrested
Coffee, cold showers and fresh air do not sober you up. Only time does, and the manual estimates about one hour per drink. A 12 ounce beer, 4 ounces of wine and a 1.5 ounce shot of 80 proof liquor all contain the same amount of alcohol. Judgment is the first thing alcohol affects, which is why people who have been drinking often feel fine to drive when they are not.
Plan ahead: choose a sober designated driver, call a ride or stay where you are.
Common mistakes
- Believing one drink is fine for a teen driver. Under 21, any amount is illegal.
- Thinking a dismissed court case ends the matter. DMV revocation happens separately.
- Missing the 7-day deadline to request a hearing.
- Driving after taking a new medicine without checking how it affects you.
Test yourself: Drunk and drugged driving laws in Alaska
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Sources: Alaska Driver Manual (Rev. 10/2025), Alaska Division of Motor Vehicles: Implied Consent, Alcohol, Drugs, Driving, Administrative Revocations, Ignition Interlock Device and Points sections. Independent guide, not affiliated with any licensing agency. Always check the latest official rules with the Alaska licensing agency.