Booster seat requirements — Alaska Permit Test
Booster seat requirements 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 child over 4 and under 8 years old who is less than 57 inches tall and weighs 20 to under 65 pounds must be secured in a booster seat.
A booster lifts a child so the belt crosses the strong bones of the chest and hips, not the soft neck and belly.
(3) over four years of age but less than eight years of age who is less than 57 inches in height and weighs 20 or more pounds but less than 65 pounds shall be properly secured in a booster seat that is secured by a seat belt system or by another child passenger restraint system that meets or exceeds the standards of the United States Department of Transportation and is used in accordance with the manufacturer’s instructions.
The booster seat rule covers children over 4 and under 8 years old who weigh 20 or more pounds but less than 65 pounds.
Below that weight an adult belt cannot sit on the bones it is meant to hold, so the booster stays until the child grows into it.
(3) over four years of age but less than eight years of age who is less than 57 inches in height and weighs 20 or more pounds but less than 65 pounds shall be properly secured in a booster seat that is secured by a seat belt system or by another child passenger restraint system that meets or exceeds the standards of the United States Department of Transportation and is used in accordance with the manufacturer’s instructions.
A child over four years old who exceeds the booster seat height or weight limits must be secured in a seat belt.
Once a child is big enough for the belt to fit, a seat belt holds them properly and a booster is no longer needed.
(4) over four years of age who exceeds the height or weight requirements in (3) of this subsection shall be properly secured in a seat belt.
For a child 8 to under 16 who does not exceed the booster limits, whether a child safety device or a safety belt is appropriate is determined solely by the driver.
The driver sees the child and the seat, so the law leaves that fit to the person who is responsible for the child.
(5) eight years of age but less than 16 years of age who does not exceed the height and weight requirements in (3) of this subsection shall be properly secured in a child safety device approved for a child that size by the United States Department of Transportation or in a safety belt, whichever is appropriate for the particular child as determined solely by the driver.
On the test
A child between 4 and 8 must use a booster seat while shorter than how many inches?
57 inches. A booster lifts a child so the belt crosses the strong bones of the chest and hips, not the soft neck and belly. Alaska Driver Manual, p.26: “(3) over four years of age but less than eight years of age who is less than 57 inches in height and weighs 20 or more pounds but less than 65 pounds shall be properly secured in a booster seat that is secured by a seat belt system or by another child passenger restraint system that meets or exceeds the standards of the United States Department of Transportation and is used in accordance with the manufacturer’s instructions.”
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)