Child restraints — California Permit Test
Child restraints on the California permit test — 6 rules, each with the reason behind it and a question on it while it is fresh.
The rules
Children under 2 years old, under 40 pounds and under 3 feet 4 inches tall must be secured in a rear-facing child passenger restraint system.
A small child’s neck cannot hold their head in a crash, and facing backward is what supports it.
Children who are under 2 years old, under 40 pounds, and under 3 feet 4 inches tall:
A child in a rear-facing child passenger restraint system may not ride in the front seat of an airbag-equipped vehicle.
An airbag opens at the speed of a punch, and a rear-facing seat puts a baby’s head right there.
NOTE: A child in a rear-facing child passenger restraint system may not ride in the front seat of an airbag-equipped vehicle.
Children under 8 years old, or less than 4 feet 9 inches tall, must be secured in a child passenger restraint system in a rear seat.
An adult belt across a small child crosses their neck and stomach instead of their shoulder and hips.
Children who are under 8 years old, or who are less than 4 feet
A child under 8 years old may ride in the front seat in an approved restraint where there is no rear seat, the rear seats are side-facing or rear-facing, the restraint cannot be installed properly in the rear, all rear seats are occupied by children 7 years old or younger, or medical reasons prevent it.
Some cars have no back seat at all, and the rule has to allow for the car that exists.
In some cases, children under 8 years old may ride in the front seat of a vehicle in a federally-approved child passenger restraint system.
Children 8 years old or older, or at least 4 feet 9 inches tall, may use a properly secured safety belt that meets federal standards.
Once the belt crosses the shoulder and the hips properly, it is doing its job.
Children who are 8 years old or older, or at least 4 feet 9 inches tall: May use a properly secured safety belt that meets federal standards.
Your local law enforcement agency or fire department can check the installation of your child passenger restraint system, and you should check the fit as your child grows.
A seat fitted loosely does very little, and it is easy to get wrong the first time.
Your local law enforcement agency or fire department can check the installation of your child passenger restraint system.
On the test
Below what weight must a child ride rear-facing?
40 pounds. A small child’s neck cannot hold their head in a crash, and facing backward is what supports it. California Driver’s Handbook, p.66: “Children who are under 2 years old, under 40 pounds, and under 3 feet 4 inches tall:”
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.
- Free to start: a 10-question test and the first section of cards. No sign-up and no account.
- 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 California Driver’s Handbook, published by the California Department of Motor Vehicles, and against the state code itself. Last checked 2026-09-21.
- src/assets/drivers-manuals/CA.pdf (California Driver’s Handbook, DL 600 ENGLISH (REV. 6/2025), retrieved 2026-09-14; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/CA.pages.txt (the pdftotext -layout fixture every citation here was cut against and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/SOURCES.json, CA entry — the folio offset of 6 and its basis, the three non-law pages, the two sign gallery pages, and the record of why California’s exam shape is this app’s own
- docs/plans/chosen-exam-shapes.md section 5 — the decision that a state publishing neither exam figure ships 40/32 with both disclosed
- docs/plans/how-to-build-laws.md — the rule that the handbook is the syllabus and nothing enters this file without a page in it