Drunk driving signs and open containers — Louisiana Permit Test
Drunk driving signs and open containers on the Louisiana permit test — 3 rules, each with the reason behind it and a question on it while it is fresh.
The rules
"Sober" means no alcohol or other impairing drugs are in the body's circulatory system; impairment starts with the first drink.
There is no safe number of drinks before driving. Your skills begin to slip with the very first one.
Impairment starts with the first drink.
Louisiana's open container law bans both having an open alcoholic beverage container and drinking any alcohol in a vehicle.
Even a sip at a red light is a crime, and an open can in the car is too.
This law prohibits both the possession of any open alcoholic beverage container and consumption of any alcohol beverage in a vehicle.
Even if you are not drinking, an open alcohol container in the vehicle puts you, the driver, at risk for fines and penalties.
The driver is in charge of the car, so a passenger's open drink can still get the driver fined.
Even if you are not consuming alcoholic beverages, the fact that it is the vehicle puts you, the driver, at risk for fines and penalties.
On the test
When does impairment from alcohol start?
With the first drink. There is no safe number of drinks before driving. Your skills begin to slip with the very first one. Class D & E Driver's Guide, p.124: “Impairment starts with the first drink.”
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.")