Most states require a separate drug and alcohol knowledge test before you can get your learner's permit
A drug and alcohol learner's permit test is a written exam that measures what you know about the dangers of impaired driving and your state's laws around substance use behind the wheel. It is separate from the general knowledge test about road signs, right-of-way, and driving rules. Some states call it the Alcohol and Drug Awareness Test, the DUI/DWI Knowledge Test, or the Substance Abuse and Traffic Safety (SATS) course exam, depending on where you live.
The test is required in most U.S. states before you can obtain a learner's permit or provisional license. A few states bundle it into their main permit exam; others require it as a standalone assessment. The content focuses on how alcohol and drugs affect reaction time, judgment, and vehicle control, plus the legal consequences of driving under the influence in your state.
You typically take this test at your state's Department of Motor Vehicles (DMV), Secretary of State office, or equivalent licensing agency. Some states allow you to complete an online course first, which then qualifies you to take the test. Others require the test before any course. The rules vary significantly by state, so your first step is to check your state's DMV website for the exact sequence and requirements.
Key Takeaways
- Most states require a separate drug and alcohol test before issuing a learner's permit, though the format and timing differ by state.
- The test covers how alcohol and drugs impair driving, your state's DUI/DWI laws, and the consequences of impaired driving convictions.
- Some states require you to complete an online course or classroom instruction before taking the test; others let you test first.
- You take the test at your state's DMV or licensing office, and passing is usually a requirement before you can move forward with permit issuance.
- Passing scores typically range from 70 to 80 percent correct, but the exact threshold depends on your state's standards.
What the test actually covers
The drug and alcohol test focuses on three main areas: how substances affect driving ability, your state's specific laws, and the real-world consequences of impaired driving. Questions ask about blood alcohol content (BAC) limits, how long alcohol stays in your system, and how different drugs (prescription, over-the-counter, and illegal) impair judgment and reaction time. You will see questions about the signs of impairment in other drivers and what to do if you are a passenger with an impaired driver.
Your state's legal consequences are a major part of the exam. This includes minimum penalties for a first DUI/DWI offense in your state — jail time, fines, license suspension length, and mandatory programs like substance abuse treatment or ignition interlock devices. Some states also test your knowledge of implied consent laws, which means that by driving, you have already agreed to a breath or blood test if stopped.
The test does not usually ask you to calculate your own BAC or diagnose impairment in yourself. Instead, it tests whether you understand the general science and your state's specific legal framework. Most tests are multiple-choice, with 20 to 50 questions depending on the state. You typically have 30 minutes to an hour to complete it.
How to prepare for the test
Your state's DMV website publishes a study guide or handbook that covers everything on the test. read it and read the sections on alcohol, drugs, and impaired driving. Many states also post sample questions or practice tests online. Take these practice tests under timed conditions so you know what to expect on test day.
Some states require or strongly recommend a formal course before you take the test. These courses are often called Alcohol and Drug Awareness Programs, DUI Prevention Courses, or Substance Abuse and Traffic Safety (SATS) courses. They may be offered online, in person, or both. If your state requires a course, you must complete it and receive a certificate before you can sit for the test. If it is optional, taking it anyway can help you pass on your first attempt and may reduce insurance costs later.
On test day, bring the documents your DMV requires — usually your state ID or passport, proof of residency, and your learner's permit process. Arrive early, read each question carefully, and do not rush. If you do not pass, most states let you retake the test after a waiting period of a few days to a week. There is usually a small fee for each attempt.
State-by-state differences in requirements and format
The drug and alcohol test is not uniform across the country. Some states require it as a separate exam before you take the general knowledge test; others combine it into one longer exam. A few states do not have a separate drug and alcohol test at all, but cover the material within their main permit exam.
States also differ on whether a course is required before the test, recommended, or optional. California, for example, requires completion of a Substance Abuse and Traffic Safety (SATS) course before you can take the written test. New York recommends a course but does not require it. Texas allows you to take the test without a course, though some school districts offer them as part of driver education programs.
Passing scores also vary. Most states set the passing score at 70 to 80 percent correct. A few states use 75 percent as the standard. Check your state's DMV website for the exact passing score, because it affects how many questions you can miss and still pass.
What happens after you pass
Passing the drug and alcohol test is one step toward getting your learner's permit. It does not mean you have the permit yet. You still need to pass the general knowledge test about road signs, traffic laws, and safe driving practices. Once you pass both tests, you can receive your learner's permit, which allows you to drive under supervision (usually with a licensed adult in the vehicle).
Some states issue your learner's permit on the same day you pass both tests. Others mail it to you within a few days. Your permit will have an expiration date, usually between one and three years depending on your state. During the learner's permit period, you must follow restrictions like not driving alone, not driving at night, and not using a cell phone while driving.
After you have held your learner's permit for the required time (often six months to a year) and logged the required supervised driving hours, you can take the road test to earn your full driver's license. The drug and alcohol test does not need to be retaken unless your permit expires and you reapply.
If you fail the test
Failing the drug and alcohol test does not prevent you from trying again. Most states allow you to retake it after a waiting period — usually three to seven days. Use that time to study the material you missed. Review your state's DMV handbook again, focusing on the sections where you struggled. Take the practice test again if one is available.
Some states charge a small fee for each retake, usually between $5 and $15. A few states allow unlimited retakes at no extra cost. Check your state's DMV website for the retake policy and fee structure before you schedule your second attempt.
If you fail multiple times, consider taking a formal drug and alcohol awareness course, even if it is not required in your state. These courses go into more depth than the study guide and can help you understand the material better. Many are available online and take two to four hours to complete.
Online courses and their role in the process
Many states offer or require online drug and alcohol awareness courses as part of the learner's permit process. These courses cover the same material as the test but in a structured, interactive format. Some include videos, quizzes, and scenarios that show how impaired driving affects decision-making. Completing a course often gives you a certificate that you bring to the DMV when you take the test.
In states where a course is required, you cannot take the test without the certificate. In states where it is optional, taking the course can improve your chances of passing the test on your first attempt. Some insurance companies also offer discounts if you complete a defensive driving or substance abuse awareness course before you start driving.
Course costs vary. Some are free through your state's DMV or a public health agency. Others charge $15 to $50. If your state requires a course, the fee is usually built into the permit process cost. If it is optional, you pay separately.
Frequently Asked Questions
Do I have to take the drug and alcohol test if I already took driver education in high school?
It depends on your state. Some states waive or reduce the general knowledge test if you completed an approved driver education course, but the drug and alcohol test is usually still required. Check your state's DMV website or call your local DMV office to confirm whether your high school course counts toward this requirement.
What is the passing score on the drug and alcohol test?
Most states require 70 to 80 percent correct to pass. The exact threshold varies by state. Your state's DMV website or study guide will state the passing score. If you score below that, you can retake the test after the waiting period your state requires.
Can I take the drug and alcohol test online?
Some states allow the test itself to be taken online through the DMV website or an approved testing vendor. Others require you to take it in person at a DMV office. A few states require an in-person course but allow the test online. Check your state's DMV website to see which format is available where you live.
How long is the drug and alcohol test?
The test usually takes 30 minutes to an hour, depending on how many questions your state includes. Most tests have 20 to 50 questions. You are given a time limit, but most people finish before time runs out. Read each question carefully rather than rushing through.
What happens if I fail the drug and alcohol test multiple times?
You can retake it after your state's waiting period, usually three to seven days. If you fail several times, take a formal drug and alcohol awareness course to strengthen your understanding of the material. These courses are available online in most states and take a few hours to complete.