Ignition interlock periods — Alaska Permit Test
Ignition interlock periods on the Alaska permit test — 4 rules, each with the reason behind it and a question on it while it is fresh.
The rules
A person with 2 DUI or Refusal convictions must have the ignition interlock device installed for 12 months.
Each repeat conviction shows the first lesson did not stick, so the time with the device grows.
The chart below shows the periods of IID installation for a person with multiple convictions.
A person with 3 DUI or Refusal convictions must have the ignition interlock device installed for 18 months.
A driver who keeps drinking and driving needs a longer stretch where the car itself refuses to start after a drink.
The chart below shows the periods of IID installation for a person with multiple convictions.
A person with 4 DUI or Refusal convictions must have the ignition interlock device installed for 24 months.
The longer period keeps a repeat offender's car from starting after a drink for two full years of driving.
The chart below shows the periods of IID installation for a person with multiple convictions.
A person with 5 DUI or Refusal convictions must have the ignition interlock device installed for 30 months.
By the fifth conviction the driver has shown real danger to others, so the device stays on longest.
The chart below shows the periods of IID installation for a person with multiple convictions.
On the test
With 2 DUI or Refusal convictions, how long must the ignition interlock device be installed?
12 months. Each repeat conviction shows the first lesson did not stick, so the time with the device grows. Alaska Driver Manual, p.23: “The chart below shows the periods of IID installation for a person with multiple convictions.”
How this works
Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.
You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.
Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.
What it costs
- One payment, once — not a subscription. Nothing renews and there is nothing to cancel, for an exam you sit one time.
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- Paying opens the rest of the cards, unlimited full-length practice tests, and retests built from exactly the questions you got wrong.
- Every level up to Prepared — 3 tests passed in a row.
- Do the work, fail the real exam, and we refund you.
Where these come from
Every rule here is checked against Alaska Driver Manual, published by the Alaska Department of Administration, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/AK.pdf (Alaska Driver Manual, REV.10/2025, Alaska Division of Motor Vehicles, retrieved 2026-09-14 and re-checked 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/AK.pages.txt (the plain pdftotext fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- https://dmv.alaska.gov/credential-services/drivermanual/ (read 2026-10-04; links the manual)
- https://dmv.alaska.gov/credential-services/instruction-permit/ (read 2026-10-04; states no count or mark)
- https://dmv.alaska.gov/credential-services/your-first-alaska-drivers-license/ (read 2026-10-04; states no count or mark)
- https://www.akleg.gov/basis/aac.asp?media=print&secStart=2.90.010&secEnd=2.90.990 (2 AAC 90, read 2026-10-04; 2 AAC 90.420(h)(2) sets the knowledge test's retest wait and no figure)