How Does Graduated Driver Licensing Protect Teen Drivers?

Quick answer: Graduated driver licensing (GDL) gives new teen drivers more freedom in stages, instead of a full licence all at once. NHTSA says this approach can reduce a teen's crash risk by as much as 50%. It matters because in 2024, 2,320 people died in crashes involving a teen driver aged 15 to 18 in the United States.

What graduated driver licensing is

Graduated driver licensing eases new drivers onto the road in steps. A teen starts with a learner's permit, moves to an intermediate or provisional licence with limits, and only later earns a full licence. Each stage adds freedom once the driver has shown they can handle the last one.

All 50 states and the District of Columbia have a three-stage GDL system, according to NHTSA.

NHTSA says teen drivers have a higher rate of fatal crashes mainly because of immaturity, lack of skills, and lack of experience.

The three stages of GDL

GDL laws vary by state, but NHTSA recommends the following provisions for each stage.

Stage 1 is the learner's permit:

• Minimum age of 16
• A licensed adult aged 21 or older in the vehicle at all times
• All occupants must wear seat belts, zero alcohol, and no portable electronic devices while driving
• Parental certification of 30 to 50 practice hours
• The permit must stay crash-free and conviction-free for at least 6 consecutive months before moving on

Stage 2 is the intermediate or provisional licence:

• Minimum age of 16.5
• A nighttime driving restriction, with a licensed adult required from 10 p.m. until 5 a.m., with limited exceptions for school, work, medical, or religious driving
• Passenger limits: no more than one teen passenger for the first 12 months, then no more than two teen passengers until age 18
• The same seat belt, zero-alcohol, and no-device rules as Stage 1

Stage 3 is full licensure, with a minimum age of 18 for lifting the passenger and nighttime restrictions, zero alcohol while driving, and a visually distinctive licence for drivers under 21.

Many states require 40 to 50 hours of certified supervised practice before an intermediate licence. NHTSA points out that novice teen drivers rarely crash while supervised, but have the highest crash rates of all age groups during the first 6 months of unsupervised driving.

Why teen drivers crash

The risks GDL targets are the same ones that show up in the fatal crash data year after year. In 2024, speeding was a factor in 33% of the passenger vehicle teen drivers aged 15 to 18 involved in fatal crashes, according to NHTSA.

Alcohol is also a factor, even though drinking under 21 is illegal in every state. In 2024, 22% of 15- to 18-year-old passenger vehicle drivers involved in fatal crashes had been drinking. For drivers under 21, the blood alcohol limit is zero, not 0.08.

Seat belt use is lowest among teen drivers. In 2024, 51% of teen drivers who died were unbuckled. When the teen driver in a fatal crash was unbuckled, nine out of ten of the passengers who died were also unbuckled.

Passengers add risk of their own. In a study analysed by NHTSA, teen drivers were two-and-a-half times more likely to engage in risky behaviours when driving with one teenage peer, compared with driving alone. With multiple passengers, that figure rose to three times.

Phones are another danger. NHTSA reports that dialling while driving increases a teen's risk of crashing by six times, and texting while driving increases it by 23 times. Tiredness matters too: in 2024, drowsy driving claimed 644 lives, and drivers aged 17 to 23 are among those at higher risk of a drowsy-driving crash.

What parents can do

GDL laws can be hard to enforce from outside the car, so NHTSA says parents' own oversight matters. Learn your state's GDL law and enforce its limits on night driving and passengers. Set your own ground rules if your state's rules are weaker: no phone use, no passengers, no speeding, no alcohol, no driving when tired, and seat belts for everyone on every trip. Put the rules in writing, with clear consequences, and enforce them. Be a good role model: put your phone away, slow down, and buckle up every time you drive.

Does GDL actually work

NHTSA says GDL systems reduce teen crashes, and multiple studies back that up. Novice teen drivers are twice as likely as adult drivers to be in a fatal crash. The agency's summary is that this approach can reduce a teen's crash risk by as much as 50%.

The longer trend is moving in the right direction. There was a 2% decrease in passenger vehicle driver fatalities of 15- to 18-year-olds between 2015 and 2024. The toll is still high: the Connecticut Department of Transportation, citing NHTSA, reports that 752 teen drivers aged 15 to 18 were killed in crashes in 2024. For the wider 15 to 20 age group, see How Many Young Drivers Die in Crashes Each Year?. National Teen Driver Safety Week runs 18 to 24 October 2026. State figures for all ages are on the US crash deaths by state page, the global picture is on the world accident statistics page, and today's reports are on accidents today.

How these numbers were counted

These figures come from NHTSA's Teen Driving pages, based on the Fatality Analysis Reporting System (FARS). The 2024 figures come from the Annual Report File, which can be revised as records are checked. Teen driver here means a driver aged 15 to 18, unless a figure is labelled otherwise. The 2,320 total covers everyone killed in crashes involving a teen driver. The 752 figure is reported by the Connecticut Department of Transportation citing NHTSA. Restraint and alcohol figures cover cases where that information was known.