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Illinois driving lesson · DUI & Drug Laws

Open containers, under-21 rules and related offenses

A 3-minute lesson from the Illinois course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.

Read time
3 minutes
Course unit
DUI & Drug Laws
Checkpoint questions
6
Source pages
54, 55, 63

DUI law reaches beyond the driver's own blood alcohol. It covers open alcohol in the car, parents who let minors drink, lending your car to someone impaired, and a zero-tolerance rule for anyone under 21.

Know the rule

It is illegal for anyone to drink alcohol in a vehicle. The driver and passengers may be ticketed.

Handbook p. 54 ↗

Know the rule

Exempt: passengers on chartered buses used for nonschool purposes, motor homes, mini motor homes and limousines.

Handbook p. 54 ↗

Know the rule

It is illegal to have alcohol in the passenger area of a vehicle if the container has been opened.

Handbook p. 54 ↗

Know the rule

It is illegal to operate a motorboat under the influence. After a motorboat crash with injuries or death, refusing testing, or a test showing .08 BAC, illegal THC levels or unlawful drugs, can cost you your driving privileges.

Handbook p. 54 ↗

Know the rule

A parent or guardian may not let anyone under 21 drink alcohol, or fail to control access to alcohol on property they control, including a vehicle or watercraft. If a death or injury results, they may face criminal penalties.

Handbook p. 54 ↗

Driving while suspended or revoked for DUI, Aggravated DUI, reckless homicide or leaving a fatal/injury crash scene brings:

  • Criminal penalties, including jail time
  • A longer suspension or revocation period
  • Seizure and possible forfeiture of your vehicle
Handbook p. 55 ↗

Know the rule

A driver suspended or revoked for those offenses may not drive in ANY state. An arrest in another state is reported to the Illinois Secretary of State.

Handbook p. 55 ↗

Know the rule

It is illegal to let someone drive your vehicle if you know that person is under the influence. Providing alcohol to a person under 21 can bring a fine, jail and a license suspension.

Handbook p. 55 ↗

Drivers under age 21

Drivers under age 21
OffensePenalty
DUI conviction (first)Revocation of at least 2 years
Any trace of alcohol while drivingSuspension of at least 3 months
Alcohol purchase/possession/use/giftLoss of driving privileges
Handbook p. 55 ↗

Know the rule

Under-21 alcohol offenses (illegal consumption, purchase, possession, or receiving alcohol as a gift) cost you your driving privileges whether or not you were driving at the time.

Handbook p. 55 ↗

Zero tolerance violation

A person under 21 driving with an alcohol concentration greater than 0.00 but less than 0.08. It is grounds for suspension.

Handbook p. 63 ↗

Know the rule

If your license was suspended before age 21, you must complete a driver remedial education course, and you may have to take the complete license exam again.

Handbook p. 55 ↗

Put it into practice

An 18-year-old has one beer, waits an hour and drives. Stopped, they test above 0.00. That's a zero-tolerance violation: at least a 3-month suspension, even though they're far below .08.

Check your understanding

Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.

It is illegal to drink alcohol in a vehicle in Illinois, even if the driver's BAC stays under the legal limit.
  1. True
  2. False

Answer: True

Illinois' open-container law bans drinking in a vehicle regardless of BAC.

Handbook p. 54 ↗
What BAC level triggers a suspension for a driver under age 21 in Illinois?
  1. 0.08% or more, same as adult drivers
  2. 0.02% or more
  3. 0.05% or more
  4. Any trace above 0.00%

Answer: Any trace above 0.00%

Illinois applies zero tolerance: any detectable alcohol above 0.00% for under-21 drivers.

Handbook p. 55 ↗
A first-time DUI conviction for a driver under 21 results in what minimum penalty?
  1. A six-month suspension
  2. A two-year revocation
  3. A one-year revocation
  4. A 30-day suspension

Answer: A two-year revocation

Under-21 first DUI convictions carry a minimum two-year revocation.

Handbook p. 55 ↗
A parent who allows underage drinking on property they control can face criminal penalties if injury or death results.
  1. True
  2. False

Answer: True

Parental responsibility laws impose criminal liability in this situation.

Handbook p. 54 ↗
What happens to a person under 21 convicted of illegal alcohol possession, even if they were not driving?
  1. Mandatory community service only, no license impact
  2. Loss of driving privileges
  3. A fine with no license consequence
  4. A verbal warning only

Answer: Loss of driving privileges

Under-21 alcohol possession convictions bring loss of driving privileges even if not driving.

Handbook p. 55 ↗
What may happen to a vehicle if its driver is convicted of driving on a license revoked for DUI?
  1. Nothing happens to the vehicle itself
  2. It must be sold within 30 days
  3. It may be seized and possibly forfeited
  4. It is impounded for exactly 24 hours

Answer: It may be seized and possibly forfeited

A vehicle can be seized and forfeited when driven on a DUI-revoked license.

Handbook p. 55 ↗
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