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Tennessee driving lesson · Alcohol, Drugs & DUI

Under-21 laws & preventing drunk driving

A 3-minute lesson from the Tennessee 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
Alcohol, Drugs & DUI
Checkpoint questions
6
Source pages
96, 97

Young drivers are especially at risk — from their own drinking and from riding with others who've been drinking. In one national survey, nearly half of 10th graders and a third of 8th graders had ridden in the past month with a driver who had used alcohol or drugs.

Know the rule

Young drivers crash far more than older drivers at a BAC between .01 and .08, because of low tolerance for alcohol and limited driving experience.

Handbook p. 97 ↗

Special laws for people under 21

Special laws for people under 21
LawApplies toPenalty
Underage driving while impairedAges 16–20 with .02 BAC or impairedLose license 1 year, $250 fine
18–20 alcohol violationBuying, trying to buy, or possessing1 year; second time 2 years
Juvenile offenderAges 13–17 with alcohol or drugs1 year or until 17, whichever longer
Handbook p. 97 ↗
.02

BAC that brings an underage driving while impaired conviction for drivers 16 to 20

Handbook p. 97 ↗

Know the rule

The 18–20 law applies to any alcohol conviction, even if you weren't driving or in a vehicle.

Handbook p. 97 ↗

Know the rule

For ages 13–17 a second conviction means suspension for two years or until age 18, whichever is longer. Even if you've never been licensed, you can lose the privilege to drive.

Handbook p. 97 ↗

Know the rule

Underage driving while impaired may also include public service work.

Handbook p. 97 ↗

Ways to avoid drinking and driving

  • Pick a designated driver who stays strictly sober
  • Go to events in groups with a driver who agrees not to drink
  • Ride with a friend who isn't drinking
  • Give your keys to a sober person before you start drinking
  • If offered a drink, say 'No thanks, I'm driving'
Handbook p. 97 ↗

Know the rule

Decide before you start drinking that you won't drive — after one or two drinks your judgment makes that decision harder. Alcohol-related crashes aren't accidents; they can be prevented.

Handbook p. 97 ↗

Tennessee numbers

  • 2020: 27% of traffic deaths (326) were alcohol-related
  • Of those 326, 122 also involved a driver who used drugs
  • 2021: about 24% alcohol-related; about 41% involved an impaired driver
Handbook p. 97 ↗

Put it into practice

You're 19 and get caught holding a beer at a party you walked to. You weren't driving, but you'll still lose your driving privilege for one year — two years if it happens again.

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.

A driver at least 16 but under 21 who is found driving with a BAC of .02 percent can be convicted of:
  1. No offense, since it is below the adult limit
  2. Underage driving while impaired
  3. A minor traffic violation with no license impact
  4. A felony DUI automatically

Answer: Underage driving while impaired

A driver 16 to 20 years old found driving with a BAC of .02 percent can be convicted of underage driving while impaired.

Handbook p. 97 ↗
What is the license suspension for a first conviction of underage driving while impaired?
  1. Thirty days only
  2. Five years
  3. One year, plus a $250 fine
  4. No suspension, only a fine

Answer: One year, plus a $250 fine

A conviction for underage driving while impaired results in a one-year license suspension and a $250 fine.

Handbook p. 97 ↗
An 18, 19, or 20-year-old convicted of purchasing or possessing alcohol (even if not driving) will lose driving privileges for:
  1. Six months
  2. No time at all if not driving
  3. Two years
  4. One year for a first offense

Answer: One year for a first offense

Anyone 18-20 convicted of purchasing, attempting to purchase, or possessing alcohol loses driving privileges for one year on a first offense.

Handbook p. 97 ↗
A 15-year-old found to have possessed or consumed alcohol will have driving privileges suspended for:
  1. One year or to age 17, whichever is longer
  2. Six months only
  3. Until age 21 automatically
  4. No suspension since they are not yet licensed

Answer: One year or to age 17, whichever is longer

Juveniles age 13-17 found with alcohol or drugs face suspension for one year or until age 17, whichever is longer.

Handbook p. 97 ↗
A second alcohol/drug possession conviction for a driver age 13-17 results in suspension until:
  1. Age 16 only
  2. Age 18, or two years, whichever is longer
  3. Age 17, or one year, whichever is longer
  4. There is no increased penalty for repeat offenses

Answer: Age 18, or two years, whichever is longer

A second juvenile conviction results in suspension for two years or until age 18, whichever is longer.

Handbook p. 97 ↗
Young drivers under the influence of even small amounts of alcohol tend to have more crash problems than older drivers primarily because of:
  1. Better reaction times that make them overconfident
  2. Stricter law enforcement targeting them
  3. Low tolerance and little experience
  4. Faster vehicles typically driven by teens

Answer: Low tolerance and little experience

Young drivers have a much greater crash risk at low BAC levels due to low alcohol tolerance and limited driving experience.

Handbook p. 97 ↗
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