Checking to the rear — Louisiana Permit Test
Checking to the rear on the Louisiana permit test — 3 rules, each with the reason behind it and a question on it while it is fresh.
The rules
You need to check to the rear more often when traffic is heavy.
In heavy traffic, cars close in from behind fast, so you need to know who is back there.
You need to check to the rear more often when traffic is heavy.
Use your mirrors to check behind you whenever you slow down, especially when slowing quickly or where a following driver would not expect it.
A driver behind you may not expect you to brake at a driveway, so you check to see if they are too close.
Use your mirrors to check behind your vehicle whenever you slow down.
When going down a long or steep hill, check your mirrors for vehicles coming up quickly, such as large trucks and buses.
Heavy vehicles gain speed fast on a downgrade and may not be able to slow down behind you.
Check your mirrors for vehicles approaching quickly when you are going down hills or mountains.
On the test
When should you check traffic to the rear more often?
When traffic is heavy. In heavy traffic, cars close in from behind fast, so you need to know who is back there. Class D & E Driver's Guide, p.63: “You need to check to the rear more often when traffic is heavy.”
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 Class D & E Driver's Guide, published by the Louisiana Department of Public Safety, and against the state code itself. Last checked 2026-10-04.
- src/assets/drivers-manuals/LA.pdf (Class D & E Driver's Guide, DPSMV2052 (R08/25), Louisiana Office of Motor Vehicles, retrieved 2026-09-14; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/LA.pages.txt (the plain pdftotext fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/LA-exam.html (the OMV's Permits page, https://expresslane.la.gov/omv/drivers/personal-driver-s-licenses/permits/, archived 2026-10-04; the 40-question count)
- https://expresslane.la.gov/omv/resources/driver-manuals/
- https://expresslane.la.gov/omv/drivers/personal-driver-s-licenses/new-licenses/ (read 2026-10-04; "An 80% is the minimum passing score for the knowledge test.")