Infant car carrier — South Dakota Permit Test
Infant car carrier on the South Dakota permit test — 6 rules, each with the reason behind it and a question on it while it is fresh.
The rules
In an infant car carrier the child rides facing backwards, and the carrier is attached to the vehicle seat by the lap belt.
A baby facing forward in a crash has its fragile neck snapped by the sudden stop.
The child rides facing backwards with its entire head and body cushioned by impact-absorbing materials.
Use the infant car carrier from birth until the child can sit well alone, at about 9 months of age.
A baby moved out of the carrier too soon sits in a seat its body cannot yet handle in a crash.
Use the carrier from birth until the child can sit well alone, at about 9 months of age.
Baby seats may be useful in the house but are not made to protect a baby in a vehicle and should not be used there.
A household baby seat flies loose in a crash with the baby still in it.
Baby seats may be useful in the house but are not made to protect a baby in the vehicle and should not be used there.
An adult’s arms are not safe for a child in a vehicle, and you must never put a belt around yourself and a child on your lap.
The crash tears the child from your arms, or your own weight crushes the child against the belt.
Never put a belt around you and a child on your lap.
Beginning with the very first ride, the drive home from the hospital, a baby should be carried in an approved safety restraint.
A crash on the first short drive home hurts a newborn as badly as on any other trip.
Beginning with the very first ride–the drive home from the hospital–the baby should be carried in an approved safety restraint.
Insist that every passenger buckle up; unrestrained passengers often injure others who are belted in.
An unbelted rider is thrown around the car in a crash and slams into the belted people beside them.
Apart from the risk of themselves, unrestrained passengers often injure others who are belted in.
On the test
Which way does a baby ride in an infant car carrier?
Facing backwards. A baby facing forward in a crash has its fragile neck snapped by the sudden stop. South Dakota Driver License Manual, p.26: “The child rides facing backwards with its entire head and body cushioned by impact-absorbing materials.”
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.
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Where these come from
Every rule here is checked against South Dakota Driver License Manual, published by the South Dakota Department of Public Safety, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/SD.pdf (South Dakota Driver License Manual, Revised 11/2024, South Dakota Department of Public Safety, retrieved 2026-09-14 and re-checked 2026-10-04; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SD.pages.txt (pdftotext -layout, the fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SD-exam.html (South Dakota Department of Public Safety, South Dakota Driver License Testing Information, KB0043731, read 2026-10-04; states the 80% rate; sha256 pinned under examSource)
- https://www.sd.gov/dps?id=cs_kb_article_view&sysparm_article=KB0043733 (read 2026-10-04; links the manual)