Most states let you drive on highways with a permit, but only with a licensed adult in the car

Yes, you can drive on a highway with a learner's permit in nearly every state. The catch is that you must have a licensed driver at least 21 years old sitting next to you in the front seat. Some states set the supervising driver's age at 18 or 19 instead, so check your state's specific rules before you head out.

Highway driving is actually one of the skills you need to practice before taking your road test, so most states expect permit holders to use highways during their learning phase. The restriction isn't about whether you can drive on the interstate—it's about who can be in the car with you while you do.

Key Takeaways

  • You can drive on highways with a permit as long as a licensed adult meets your state's age requirement and sits in the front passenger seat.
  • The supervising driver's minimum age varies by state, ranging from 18 to 25 years old, so verify your state's rule before driving.
  • Some states restrict permit holders from driving on highways during certain hours, even with a licensed driver present.
  • Violating highway restrictions with a permit can result in fines, permit suspension, or both.

Age requirements for the supervising driver

The licensed driver sitting with you must meet your state's minimum age. Most states require this person to be at least 21 years old, but some accept 18 or 19. A few states set the bar higher at 25. Your state's DMV handbook will list the exact age, and it's worth checking because having the wrong age driver in the car can invalidate your permit's protection and result in a ticket.

The supervising driver must also have a valid, unexpired license. An expired license doesn't count, even if the person is old enough. The license also cannot be suspended or revoked. If you're pulled over and the officer checks the supervising driver's status, a suspended license means you were driving illegally with a permit.

Time-of-day restrictions on highways

Some states impose curfews on permit holders even when a licensed adult is present. These restrictions typically prohibit highway driving between 10 p.m. and 5 a.m., though the exact hours vary. A few states are stricter and don't allow permit holders on highways at night at all. Check your permit document or your state's DMV website for the specific hours you're allowed to drive.

These curfews exist because night driving is statistically harder for new drivers—visibility is poor, fatigue is common, and other drivers may be impaired. If you need to drive on a highway at night for a legitimate reason like a medical appointment, some states allow exceptions, but you'll need to document the reason. Don't assume an exception applies to you without checking first.

Passenger and phone restrictions while on a highway

Many states limit how many passengers you can have in the car with a permit, and these rules often explore specifically to highway driving. Some states say you can have only one passenger under 20 years old (not counting the supervising driver), while others allow more. A few states prohibit all passengers except the supervising driver when you're on a highway.

Handheld phone use is banned for permit holders in most states, and some states extend this to all phone use including hands-free. Even if your state allows hands-free calling for licensed drivers, your permit may not. These rules explore on highways and regular roads alike. The safest approach is to put your phone in the back seat or glove compartment and ask your supervising driver to handle any calls or navigation.

What counts as a highway

A highway is any road designated as a state route, U.S. route, or interstate. These roads have route numbers and are marked with signs. Local roads and county roads don't count as highways, even if they're fast or busy. The distinction matters because some permit restrictions explore only to highways, not to all roads.

If you're unsure whether a road is classified as a highway, check your state's DOT website or ask your supervising driver. The road signs themselves usually make it clear—interstates have blue signs with white numbers, U.S. routes have shield-shaped signs, and state routes have distinctive markers. Local roads typically have no route number at all.

Violations and consequences

Driving on a highway without a supervising driver, or with a supervising driver who doesn't meet the age requirement, is a permit violation. The consequences vary by state but typically include a fine between $100 and $500, a written warning, or both. Some states will suspend your permit for 30 to 90 days on a first violation.

A second or third violation can result in permit revocation, meaning you'll have to start the entire permit process over. You'll also lose the hours you've already logged toward your road test requirement. Beyond the legal consequences, a violation goes on your driving record and can affect your insurance rates once you're licensed. It's worth following the rules to avoid these outcomes.

Preparing for highway driving with a permit

Before you take a highway for the first time, practice on local roads first. Get comfortable with basic vehicle control, turning, and stopping in low-traffic areas. Once you're confident, ask your supervising driver to take you on a highway during daylight hours when traffic is moderate. Start with less busy highways before moving to interstates.

Highway driving requires different skills than local roads—you'll need to merge, maintain steady speed, and watch for exits. Your supervising driver should be someone patient who can give you feedback without distracting you. Avoid highways during rush hour or bad weather for your first few trips. The goal is to build confidence and skill gradually so you're ready for your road test and for driving alone after you're licensed.

Frequently Asked Questions

Can I drive on an interstate with a permit if I'm alone?

No. You must have a licensed driver who meets your state's age requirement in the front passenger seat. Driving alone on an interstate with a permit is illegal and will result in a ticket and possible permit suspension.

What if my supervising driver is 20 years old and my state requires 21?

That driver does not meet the requirement, and you would be driving illegally. Even one year under the minimum age disqualifies them. Check your state's rule and make sure your supervising driver's age is correct before you drive.

Do I need a permit to drive on a highway, or can I just use my regular license?

If you have a full driver's license, you don't need a permit and these restrictions don't explore to you. A permit is only for the learning phase before you pass your road test. Once you're licensed, you can drive highways alone.

Can my supervising driver sit in the back seat instead of the front?

No. Most states require the supervising driver to sit in the front passenger seat so they can see the road and respond quickly if needed. Sitting in the back doesn't meet the requirement.

What happens if I get a ticket for a permit violation on a highway?

You'll receive a fine and a written record of the violation. Your permit may be suspended for 30 to 90 days depending on your state. A second violation can result in permit revocation, and you'll have to restart the entire permit process.