Key Missouri facts: Alcohol & Drugs
A driver under 21 commits an offense at a BAC of 0.02 percent. Chapter 10, Alcohol, Drugs, and Driving, Administrative Actions, PDF p. 69; Alcohol, PDF p. 73 A first DWI or BAC offense can mean up to six months in jail and a fine of up to $500. Chapter 10, Alcohol, Drugs, and Driving, Court-Convicted Actions, PDF p. 70; PDF p. 73 A second offense can mean up to one year in jail and a fine of up to $1,000. Chapter 10, Alcohol, Drugs, and Driving, Court-Convicted Actions, PDF p. 70 A fifth offense means between five and 15 years in jail. Chapter 10, Alcohol, Drugs, and Driving, Court-Convicted Actions, PDF p. 70 A first court-convicted offense brings a 90-day license suspension. Chapter 10, Alcohol, Drugs, and Driving, Court-Convicted Actions, PDF p. 70 Sample Alcohol & Drugs questions
A 17-year-old drinks a beer at a party without driving. Can a Missouri court still suspend the license?
No, since no driving took place Only after a third offense Only if the teen is under 16 Yes, drinking counts as possessing Show the answer
Yes, drinking counts as possessing
For ages over 15 and under 21, possessing alcohol can cost the license, and consumption is treated as possession.
Source: Missouri Driver Guide, Chapter 10, Alcohol, Drugs, and Driving, Minor in Possession, PDF p. 71
A 25-year-old is caught using drugs while driving. How long can the license be taken?
90 days 30 days Ten years One year Show the answer
One year
Drivers 21 or older may lose the license for one year for this.
Source: Missouri Driver Guide, Chapter 10, Alcohol, Drugs, and Driving, Missouri's Abuse and Lose Law, PDF p. 71
Under Missouri's Abuse and Lose law, how long can a driver under 21 lose the license?
90 days Two years 30 days 10 days Show the answer
90 days
A driver under 21 can lose the license for 90 days for possessing or using alcohol or drugs while driving.
Source: Missouri Driver Guide, Chapter 10, Alcohol, Drugs, and Driving, Missouri's Abuse and Lose Law, PDF p. 71
A friend offers you their prescription pill. What does the Driver Guide say about this?
It is legal for adults It is dangerous and illegal It is fine at a low dose Show the answer
It is dangerous and illegal
Medicine prescribed for another person is off limits to you.
Source: Missouri Driver Guide, Chapter 10, Alcohol, Drugs, and Driving, Prescription and Over-the-Counter Medications, PDF p. 73
What license action follows a first minor in possession offense?
A 30-day suspension A ten-year denial A warning letter only A one-year revocation Show the answer
A 30-day suspension
The first offense is a 30-day suspension, the second 90 days.
Source: Missouri Driver Guide, Chapter 10, Alcohol, Drugs, and Driving, Minor in Possession chart, PDF p. 71
How much jail time does the Driver Guide list for a fifth DWI or BAC offense?
Up to two years Five to 15 years One to three years Up to six months Show the answer
Five to 15 years
A fifth offense means between five and 15 years in jail.
Source: Missouri Driver Guide, Chapter 10, Alcohol, Drugs, and Driving, Court-Convicted Actions, PDF p. 70
What is the top penalty listed for a first DWI or BAC offense?
One year in jail and $1,000 30 days in jail and $100 Four years in jail and $5,000 Six months in jail and $500 Show the answer
Six months in jail and $500
A first offense can bring up to six months in jail and a fine of up to $500.
Source: Missouri Driver Guide, Chapter 10, Alcohol, Drugs, and Driving, Court-Convicted Actions, PDF p. 70; PDF p. 73
How long is the license suspension after a first court conviction for DWI?
10 days 90 days One year 30 days Show the answer
90 days
A first offense brings a 90-day suspension, and you may qualify for a restricted privilege.
Source: Missouri Driver Guide, Chapter 10, Alcohol, Drugs, and Driving, Court-Convicted Actions, PDF p. 70
What license action follows a third DWI or BAC conviction?
A ten-year denial A 90-day suspension A five-year denial A one-year revocation Show the answer
A ten-year denial
Third and later offenses bring a ten-year license denial.
Source: Missouri Driver Guide, Chapter 10, Alcohol, Drugs, and Driving, Court-Convicted Actions, PDF p. 70
Is it legal to drive under the influence of medical marijuana in Missouri?
Yes, with a medical card No, it is never legal Yes, at low doses Show the answer
No, it is never legal
Medical approval does not change this rule.
Source: Missouri Driver Guide, Chapter 10, Alcohol, Drugs, and Driving, Marijuana, PDF p. 74
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About these questions
We wrote these practice questions from the facts in the Missouri Driver Guide (Revised August 2026 (cover), read 2026-11-08, plus the Department of Revenue page on the Graduated Driver License Law edition) and from official sources on road signs. Every answer links to its source, so you can check it and read more.
DMV Decoded is an independent guide, not a government agency. This practice test is not connected to the Missouri Department of Revenue, and your actual test will have different questions. Study the handbook, and check the agency's website for current rules.
