Drinking and driving — Indiana Permit Test
Drinking and driving on the Indiana permit test — 9 rules, each with the reason behind it and a question on it while it is fresh.
The rules
In Indiana it is a crime to drive while intoxicated or with a blood alcohol concentration over the legal limit of .08.
Alcohol slows reactions and dulls judgment long before a driver feels drunk.
Operating a vehicle while intoxicated or with a blood alcohol concentration (BAC) in excess of the legal limit (.08) is a criminal offense and has an immediate effect on your privilege to operate a vehicle.
Your blood alcohol concentration depends mainly on how much you drank, how fast you drank it, and your body weight.
Coffee, a cold shower or fresh air do not lower it. Only time does, after you stop drinking.
The primary factors in determining an individual’s blood alcohol concentration (BAC) are: the amount of alcohol consumed, how quickly the alcohol is consumed, and the individual’s body weight.
A motorist who fails a chemical test faces a suspension of driving privileges for 180 days.
The suspension starts fast, before any trial, to keep a driver who tested over the limit off the road.
A motorist who fails a chemical test will face a suspension of driving privileges for 180 days.
A motorist who refuses to take a chemical test faces a suspension of driving privileges for one year.
Refusing costs more than failing, so a driver gains nothing by refusing the test.
A motorist who refuses to submit to a chemical test will face a suspension of driving privileges for one year.
A motorist with a prior OWI conviction who refuses a chemical test faces a two-year suspension.
A repeat drunk-driving suspect who refuses the test loses the license for longer still.
A motorist with a previous conviction for operating while intoxicated who refuses to submit to a chemical test will face a suspension of driving privileges for two years.
A court may require an ignition interlock device, which tests the driver's blood alcohol before the car will start.
The device stops a driver who has been drinking from starting the car at all.
The court may also require the installation of an ignition interlock device, which mechanically tests the driver’s blood alcohol level before his or her car can be started.
A conviction for operating a watercraft while intoxicated brings the same penalties to your driving privileges as drunk driving in a car.
Drinking and boating is just as deadly, so Indiana treats it the same on your driver record.
If you are convicted of operating a watercraft while intoxicated, your driving privileges are subject to the same penalties as an operator of a motor vehicle.
Many prescription, over-the-counter and recreational drugs impair driving, so read the label and ask a doctor or pharmacist before driving.
Some cold and allergy medicines cause drowsiness as strong as alcohol, even though they are legal.
Always consult the label on any medication and discuss its side effects with a physician or pharmacist before driving.
A car that weaves, straddles the center line or drifts may be driven by an impaired driver.
Knowing the signs lets you keep your distance and report the driver before they hurt someone.
Straddles the center line or weaves back and forth
On the test
What is Indiana's legal blood alcohol limit for driving?
A BAC of .08. Alcohol slows reactions and dulls judgment long before a driver feels drunk. Indiana Driver's Manual, p.23: “Operating a vehicle while intoxicated or with a blood alcohol concentration (BAC) in excess of the legal limit (.08) is a criminal offense and has an immediate effect on your privilege to operate a vehicle.”
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 Indiana Driver's Manual, published by the Indiana Bureau of Motor Vehicles, and against the state code itself. Last checked 2026-10-03.
- src/assets/drivers-manuals/IN.pdf (Indiana Driver's Manual, July 2026, Indiana Bureau of Motor Vehicles, retrieved 2026-09-14 and re-checked byte for byte 2026-10-03; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/IN.pages.txt (the plain pdftotext fixture every citation here was cut from and verified against; sha256 pinned in SOURCES.json)
- src/assets/drivers-manuals/IN-exam.html (Indiana BMV, Knowledge Exam, retrieved 2026-10-03; sha256 pinned in SOURCES.json under examSource; states the two sections and the 80 percent on each, and no count)
- https://www.in.gov/bmv/licenses-permits-ids/learners-permits-and-drivers-licenses-overview/learners-permit/knowledge-exam
- https://www.in.gov/bmv/licenses-permits-ids/files/Drivers-Manual.pdf