Key New Jersey facts: Alcohol & Drugs
Drivers under 21 break the law with a BAC of 0.01 percent or more. Chapter 6, How Much is Too Much, p. 115 A first DUI with a BAC from 0.08 to under 0.10 percent carries a fine of $250 to $400. Chapter 7, Driving Under the Influence (DUI), p. 122-126 A first DUI also brings a surcharge of $1,000 a year for three years. Chapter 7, Driving Under the Influence (DUI), p. 122-126 An ignition interlock device keeps the car from starting if the driver's BAC is over 0.05 percent. Chapter 7, Ignition Interlock Device, p. 127 For a first DUI with a BAC of 0.08 to under 0.10 percent, the interlock stays on for three months after driving privileges come back. Chapter 7, Ignition Interlock Device, p. 127 Sample Alcohol & Drugs questions
What is an IDRC in New Jersey DUI cases?
A center for DUI offender education An insurance discount program A special license plate A roadside breath test machine Show the answer
A center for DUI offender education
An Intoxicated Driver Resource Center runs an education program and screens offenders for alcohol or drug problems.
Source: New Jersey Driver Manual, Chapter 7, Intoxicated Driver Resource Center (IDRC), p. 128
A 19-year-old buys alcohol at a licensed New Jersey bar. What fine can apply?
Show the answer
$500
Underage buying or drinking in a licensed place can bring a $500 fine and a license suspension.
Source: New Jersey Driver Manual, Chapter 7, Driving Under the Influence (DUI), p. 122-126
What happens in New Jersey if you refuse a breath test after a DUI arrest?
You are released with no penalty You may be taken to a hospital for a blood draw You must retake the written test Your car is sold at auction Show the answer
You may be taken to a hospital for a blood draw
Refusing drivers are detained and taken to a hospital, where staff may draw blood.
Source: New Jersey Driver Manual, Chapter 7, Breath Test, p. 127
What fine applies to a first New Jersey DUI with a BAC of 0.08 to under 0.10 percent?
$1,000 to $2,000 $250 to $400 $25 to $50 $5,000 Show the answer
$250 to $400
The fine range is $250 to $400, plus many fees and surcharges.
Source: New Jersey Driver Manual, Chapter 7, Driving Under the Influence (DUI), p. 122-126
After alcohol, which drug is found most often in drivers involved in crashes?
Caffeine Aspirin Antacids Marijuana Show the answer
Marijuana
Marijuana can affect lane keeping, distance judgment and attention.
Source: New Jersey Driver Manual, Chapter 6, Drugs and Driving, p. 117
A New Jersey driver under 21 is caught with a BAC of 0.03 percent for the first time. What penalty applies?
A lifetime driving ban A $10 fine with no other penalty A written warning and nothing else A 30- to 90-day suspension and community service Show the answer
A 30- to 90-day suspension and community service
A first underage offense brings a 30 to 90 day suspension, 15 to 30 days of community service and an alcohol program.
Source: New Jersey Driver Manual, Chapter 7, Driving Under the Influence (DUI), p. 122-126
What fine applies for a first offense of carrying an open alcohol container in a car's passenger area in New Jersey?
Show the answer
$200
A first open-container offense carries a $200 fine.
Source: New Jersey Driver Manual, Chapter 7, Motor Vehicle Violations, p. 128-132
Above what BAC will a New Jersey ignition interlock device keep the car from starting?
0.10 percent 0.15 percent 0.05 percent 0.01 percent Show the answer
0.05 percent
The interlock has a built-in breath tester that blocks the start above 0.05 percent.
Source: New Jersey Driver Manual, Chapter 7, Ignition Interlock Device, p. 127
After a first New Jersey DUI with a BAC of 0.08 to under 0.10 percent, how long must the interlock stay on after restoration?
Ten years Three years Three months One week Show the answer
Three months
For that BAC range, the interlock stays for three months after privileges are restored.
Source: New Jersey Driver Manual, Chapter 7, Ignition Interlock Device, p. 127
Which drink holds about the same amount of alcohol as a 12-ounce beer?
Two shots of liquor A 5-ounce glass of wine A pitcher of light beer A 20-ounce glass of wine Show the answer
A 5-ounce glass of wine
Standard servings of beer, wine and liquor each contain about half an ounce of alcohol.
Source: New Jersey Driver Manual, Chapter 6, How Much is Too Much, p. 115
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About these questions
We wrote these practice questions from the facts in the New Jersey Driver Manual (2026 edition (back cover code R0726), PDF modified 2026-09-23, read 2026-11-07 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 New Jersey Motor Vehicle Commission (MVC), and your actual test will have different questions. Study the handbook, and check the agency's website for current rules.
