Graduated driver licensing: a parent's roadmap from permit to full license
What each GDL stage is for, which limits matter and how to check your state's law
Picture the afternoon your teen passes the road test. In one hour, their legal privileges change dramatically, but their driving skills stay exactly the same.
That gap is why graduated driver licensing exists. GDL spreads full privileges over many months, so new drivers build experience before facing the hardest conditions alone.
In 2024, 2,899 teenagers ages 13 to 19 died in motor vehicle crashes [6]. Per mile driven, drivers ages 16 to 19 have a fatal crash rate just over 3 times that of drivers 20 and older [6]. The risk is highest at ages 16 and 17 [6].
This roadmap covers each stage, the research behind its rules, family rules that add protection, and how to check your state’s exact law.
How graduated licensing works
GDL adds difficulty in planned steps. New drivers practice with a coach, then drive alone under protective restrictions, and finally lose those restrictions once they have real experience. Every state and DC has a GDL law built on these three stages [1].
Your teen’s middle stage license may be called junior, provisional, probationary or intermediate. Its requirements vary widely.
Your GDL roadmap at a glance
Comparison compiled by Safety Behind the Wheel Foundation
| Stage | What it is for | Typical rules (national patterns, October 2026) | Your role as a parent |
|---|---|---|---|
| 1. Learner permit | Building skills with an experienced adult in the passenger seat | Starts at age 14 to 16; most states require holding it at least 6 months; many require 50 supervised hours, often 10 at night [4, 7] | Coach. Log hours, vary roads and weather, and add harder conditions step by step. |
| 2. Intermediate license | First solo driving, with the riskiest conditions limited | Usually starts at 16 (range 14½ to 17); night limit; most allow 0 or 1 young passenger; 33 states and DC ban all phone use by teens [4, 8] | Gatekeeper. Set family limits tighter than the law and keep riding along. |
| 3. Full license | Driving without GDL limits | Limits often lift after 6 to 12 months of solo driving or at 17 or 18; a few places apply limits to new drivers up to 21 [4] | Mentor. Lift limits one at a time and keep the family agreement in place. |
These ranges come from the state by state table kept by the Insurance Institute for Highway Safety (IIHS), which itself advises independent verification [4].
Stage 1: The learner permit
What it is for: The permit stage builds skill while an experienced adult sits beside the new driver. It is also the lowest risk stage. In a study funded by the National Institutes of Health (NIH), teenagers on a permit had crash and near crash rates similar to adults’ [2].
Typical requirements: As of October 2026, the minimum permit age ranges from 14 to 16 [4]. As of late 2021, 48 states and DC required a permit stage of at least 6 months. Of these, 7 required a full year [7].
Required supervised practice runs from no set hours in a few states to 70 hours in Maine. Pennsylvania, for example, requires 65 hours, including 10 at night and 5 in bad weather [4].
Why the rules exist: A longer permit stage means practice across more seasons and conditions. The National Highway Traffic Safety Administration (NHTSA) keeps a guide to proven safety measures. It links a 9- to 12 month permit stage to 26% fewer fatal crashes among 16 year olds than much shorter stages [7].
Your role as coach: IIHS suggests about 70 hours of practice, even if your state requires less [9]. Variety matters as much as hours: fifty trips around one quiet loop teach far less than a mix of highways, rain, dusk, busy parking lots and rural roads.
Stage 2: The intermediate license, where risk peaks
What it is for: This stage lets teenagers drive alone while keeping them out of the riskiest situations.
Why risk jumps: IIHS notes that crash risk is especially high during the first months after licensure [10]. The NIH study placed cameras and sensors in the vehicles of 90 Virginia teenagers. In the first 3 months of independent driving, crash and near crash rates were 8 times higher than in the last 3 months on a permit [2]. Risky moves, such as hard braking and rapid acceleration, were 4 times as common [2].
Statewide crash records show the same pattern. Researchers at Children’s Hospital of Philadelphia (CHOP) tracked more than 410,000 New Jersey drivers licensed from 2006 to 2009 [11]. In the first month of independent driving, there were 229 crashes per 10,000 drivers. That rate fell 26% over the first 6 months and then kept declining more slowly [11].
Typical requirements: Most states issue this license at 16, with a range from 14½ in South Dakota to 17 in New Jersey [4]. States then limit three things: night driving, passengers and phones.
Night driving restrictions
Darkness, fatigue and social trips pile up after sunset. In 2024, 44% of teenage crash deaths happened between 9 p.m. and 6 a.m., based on our sum of IIHS time of day figures [6].
A Centers for Disease Control and Prevention (CDC) study shows why timing matters. Drivers ages 16 and 17 took only about 11% of their trips between 9 p.m. and 6 a.m. [12]. Yet those hours accounted for 31% of their fatal crashes from 2009 to 2014. Of those night crashes, 57% happened before midnight [12]. A limit that starts at midnight misses most of the danger.
The Governors Highway Safety Association (GHSA) reports that every state except Vermont limits night driving during the intermediate stage, based on laws reviewed in June 2025 [16]. Start times now range from 9 p.m. in Kansas, New York and North Carolina to as late as 1 a.m. in other states. South Carolina starts even earlier, at 6 p.m. during standard time [4].
Earlier restrictions save more lives: research summarized by NHTSA linked restrictions starting at 9 p.m. to 18% fewer fatal crashes than no restriction [7]. Restrictions starting at 1 a.m. were linked to only 9% fewer [7]. IIHS says research supports starting at 8 p.m. [9].
Passenger restrictions
Friends in the vehicle add distraction and sometimes pressure to show off. AAA Foundation for Traffic Safety researchers studied deaths per mile among drivers ages 16 and 17 from 2007 to 2010 [3]. Compared with driving alone, risk rose 44% with 1 passenger under 21, doubled with 2, and quadrupled with 3 or more [3].
In 2024, 58% of teenage passenger deaths happened in vehicles driven by another teenager [6]. GHSA reports that 47 states and DC limit passengers during the intermediate stage [16]. Most allow no more than 1 young passenger, often defined as under 18, 20 or 21. Some allow none at first [4]. A few states, including Florida and Mississippi, set no passenger limit [4].
NHTSA rates passenger restrictions as proven. When teen passengers were banned outright, fatal crash rates for drivers ages 15 to 17 were 21% lower than when 2 or more were allowed [7]. The AAA Foundation study also found that risk fell 62% when a passenger 35 or older was in the car [3]. That is a strong reason to keep riding along after licensing.
Phone restrictions
IIHS reports that 33 states and DC ban teen drivers from all phone and device use, including hands free calls [8]. Check whether your state’s ban is tied to your teen’s age or to the license stage.
IIHS notes that the earliest teen only phone laws did less to change teenage behavior than laws covering all drivers [8]. NHTSA’s guide lists teen phone bans as unproven and cites a North Carolina study in which teenage phone use did not drop after the ban [7]. Your family rule matters most. IIHS urges parents to require a blocking app or the phone’s driving focus setting [9].
Stage 3: The full license, and why "done" is not done
Typical requirements: Many states lift restrictions after 6 to 12 months of independent driving or at age 17 or 18, whichever comes first. New Jersey and DC go further, applying some limits to new drivers up to age 21 [4].
Why it still matters: In the New Jersey data, some teenagers switched to a full license in their first month of eligibility. That month, their crash rate was 24% higher than that of similar teenagers who stayed in the intermediate stage [11]. Dropping every limit at once can undo hard won progress, so lift family limits gradually and keep driving together occasionally.
Does GDL work? What the evidence shows
Yes, and stronger systems work better.
- A Cochrane systematic review of 34 studies found that GDL cut first year crash rates of 16 year olds by a median of 15.5%. Injury crash rates fell by a median of 21% [13]. Stronger programs appeared to bring larger drops in deaths.
- NHTSA’s 2023 guide gives GDL its top rating of 5 stars [7]. The strongest programs had a permit stage of at least 6 months, a night limit by 10 p.m., and a limit of 1 teen passenger. These were linked to 38% fewer fatal crashes among 16 year old drivers [7].
- IIHS reports that raising the licensing age from 16 to 17 is linked to a 13% lower fatal crash rate among drivers ages 15 to 17 [10].
- Teenage crash deaths fell 50% between 1996, when the first U.S. three stage GDL program began, and 2024 [10]. Safer vehicles and other changes likely contributed too.
The age 18 gap: when GDL stops protecting new drivers
In most states, GDL rules apply only to drivers under 18. So a young person who waits until 18 can often skip them entirely [7].
In a 2012 national survey of people ages 18 to 20, only 54% had a license before turning 18 [5]. Income mattered: 25% of those from households earning under $20,000 a year were licensed by 18, compared with 79% from households earning over $100,000 [5]. Fewer than 1 in 4 named GDL rules as a reason for waiting [5].
Waiting does not erase beginner risk. CHOP researchers found that New Jersey drivers licensed at 18 to 20 had first year crash rates similar to those licensed at 17. They also had higher late night crash rates [14].
New Jersey applies full GDL rules to new drivers under 21. IIHS says recent studies support that approach [10]. The evidence is mixed, though: an Indiana study cited by NHTSA found higher crash rates after a similar extension [7].
What to do: If your young adult is learning at 18 to 20, follow a GDL style plan anyway. Set a practice target, then allow a few months of independent driving without late nights or groups of friends.
Family rules that go beyond the law
State law sets the floor. You can raise it. NHTSA notes that teenagers whose parents set driving limits and model safe habits report less risky driving and fewer crashes [1]. IIHS urges parents to go beyond state law, starting with no friends as passengers and a written agreement that explains each rule [9].
The CDC’s free Parent Teen Driving Agreement gives families a ready starting point [15]. It covers seat belts, phones, alcohol and drugs, curfews, passengers and consequences for broken rules. In it, parents commit to modeling safe driving. CDC suggests posting the agreement at home and updating it as your teen earns new privileges [15].
Change only one condition at a time. If you allow a passenger, keep the night limit. If you extend the curfew, keep passengers at zero. This family decision rule reflects research showing that risk climbs with each added teen passenger [3].
How to look up your state's exact rules
Then build a one page family summary:
- Find the official page, usually a young driver page or driver manual on a .gov site.
- List each rule with its own end date, because night and passenger limits often end on different days.
- Read the exceptions closely, since states treat siblings, work, school and adult passengers differently.
- Ask what a ticket would do to your teen’s timeline. Check rules before any out of state trip.
- Date your notes and recheck the official site each time your teen moves to a new stage.
Frequently asked questions
What age can you get a learner’s permit?
As of October 2026, the minimum ranges from 14 to 16. Some states use half year marks such as 15½ [4]. Confirm the details on your state’s licensing site.
How many supervised driving hours does a teen need?
State minimums range from none to 70 hours. Many states require 50, often including 10 at night [4]. IIHS recommends about 70 hours no matter what your state requires [9].
What time is the teen driver curfew?
Intermediate license night restrictions start as early as 9 p.m. in some states and as late as 1 a.m. in others [4]. Because most teen night crashes happen before midnight, many families set an earlier curfew than the law requires [12].
Can my teen drive siblings with a provisional license?
Some states make exceptions for siblings or household members. Others do not [4]. Check your state’s exact definition of “family” before your teenager drives siblings alone.
The bottom line
Recommendation from Safety Behind the Wheel Foundation
Treat GDL as a minimum, not a finish line. Give your teen more varied practice than the law requires. Keep nights and teen passengers off limits during the first months of solo driving. Lift limits one at a time, and confirm every rule on your state’s official site.
Related articles
- Supervised driving practice plan: a 6 stage guide for parents and teens
- Hazard perception for new drivers: how to scan and spot trouble early
- Is my teen ready to drive alone? A readiness checklist for parents
- Choosing a safe first car for your teen: what matters most
- Teen driver monitoring: how to use telematics to coach, not spy
- Choosing driver education: how to find a course that builds safe drivers
- Learning to drive as an adult: a step by step guide for first timers
Sources and further reading
- 1National Highway Traffic Safety Administration (NHTSA). Teen Driving. Page reporting 2024 data; accessed October 2026. nhtsa.gov/road-safety/teen-driving
- 2National Institutes of Health (NIH). Teen crash risk highest during first three months after getting driver’s license (news release on Gershon P, et al., Journal of Adolescent Health, 2018). July 10, 2018. nih.gov/news-events/news-releases
- 3AAA Foundation for Traffic Safety. Tefft BC, Williams AF, Grabowski JG. Teen Driver Risk in Relation to Age and Number of Passengers. May 2012. aaafoundation.org/research/teen-driver-risk-relation-age-number-passengers
- 4Insurance Institute for Highway Safety (IIHS). Graduated driver licensing laws (state-by-state table). October 2026. iihs.org/research-areas/teenagers/graduated-licensing-laws-table
- 5AAA Foundation for Traffic Safety. Tefft BC, Williams AF, Grabowski JG. Timing of Driver’s License Acquisition and Reasons for Delay among Young People in the United States, 2012. August 2013. aaafoundation.org/research/timing-drivers-license-acquisition
- 6IIHS. Fatality Facts 2024: Teenagers. Posted June 2026. iihs.org/research-areas/fatality-statistics/detail/teenagers
- 7NHTSA. Countermeasures That Work: A Highway Safety Countermeasure Guide for State Highway Safety Offices, 11th Edition, 2023. Chapter 6, Young Drivers (sections on GDL, learner’s permit, nighttime and passenger restrictions, and cell phone restrictions). DOT HS 813 490. November 2023. nhtsa.gov/book/countermeasures-that-work/young-drivers
- 8IIHS. Distracted driving (research area overview). Updated July 2026. iihs.org/research-areas/distracted-driving
- 9IIHS. Young driver safety (guide for parents). Updated May 2026. iihs.org/research-areas/teenagers/young-driver-safety
- 10IIHS. Teenagers (research area overview). Updated August 2026. iihs.org/research-areas/teenagers
- 11AAA Foundation for Traffic Safety. Curry AE, Pfeiffer MR, Durbin DR, Elliott MR, Kim KH. Young Driver Crash Rates in New Jersey by Driving Experience, Age, and License Phase. October 2014. aaafoundation.org/research/young-driver-crash-rates-new-jersey-driving-experience-age-license-phase
- 12Shults RA, Williams AF. Graduated Driver Licensing Night Driving Restrictions and Drivers Aged 16 or 17 Years Involved in Fatal Night Crashes, United States, 2009 to 2014. Centers for Disease Control and Prevention (CDC), Morbidity and Mortality Weekly Report 65(29). July 29, 2016. cdc.gov/mmwr/volumes/65/wr/mm6529a1.htm
- 13Russell KF, Vandermeer B, Hartling L. Graduated driver licensing for reducing motor vehicle crashes among young drivers. Cochrane Database of Systematic Reviews, CD003300. October 5, 2011. cochranelibrary.com/cdsr/doi/10.1002/14651858.CD003300.pub3
- 14AAA Foundation for Traffic Safety. Curry AE, Metzger KB, Williams AF. Older Novice Driver Crashes in New Jersey: Informing the Need for Extending Graduated Driver Licensing Restrictions. July 2017. aaafoundation.org/research/older-novice-driver-crashes-new-jersey
- 15CDC. Parent-Teen Driving Agreement (Parents Are the Key). Updated July 28, 2025. cdc.gov/teen-drivers/parents-are-the-key/driving-agreement.html
- 16Governors Highway Safety Association (GHSA). Teens & Novice Drivers (state law summary). Laws last reviewed by state highway safety offices June 2025. ghsa.org/state-laws-issues/teens-novice-drivers
This article reflects the priorities of teen driver safety research and licensing policy. It is general education, not legal advice for any individual family. Licensing laws, crash data and agency guidance change, so verify current rules with your state’s official licensing agency. Reviewed October 2026.
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