An FN designation means your Alabama driver license is restricted to driving during daylight hours only

The FN code on an Alabama driver license stands for "Functional Nighttime." It is a restriction that limits you to driving between sunrise and sunset — you cannot legally drive after dark or before dawn. This restriction appears on your license as a condition code, and law enforcement will see it when ready if they run your license during a traffic stop.

Alabama issues FN restrictions most often to drivers who have failed a vision test or who have a documented vision condition that makes nighttime driving unsafe. The state may also impose it after certain medical events or as a condition of license reinstatement. Unlike a suspension, an FN restriction does not prevent you from driving entirely — it narrows when you can drive.

An FN restriction stays on your license until the Alabama Department of Public Safety removes it. You cannot straightforward ignore the restriction and drive at night; doing so is a traffic violation and can result in a ticket, fines, and potential license suspension.

Key Takeaways

  • FN means you can drive only between sunrise and sunset; driving outside those hours is illegal and can result in a ticket.
  • Alabama typically issues FN restrictions because of vision problems or medical conditions that affect nighttime driving safety.
  • An FN restriction is not a suspension — your license remains valid for daytime driving as long as you follow the restriction.
  • To have an FN restriction removed, you usually must pass a vision test or provide medical clearance from a doctor, depending on why it was issued.
  • Insurance companies may charge higher rates or require special underwriting for drivers with FN restrictions because the restriction signals a safety concern.

Why Alabama issues FN restrictions

The most common reason for an FN restriction is a failed vision screening during a license renewal or after a traffic stop. Alabama's vision standards require drivers to see clearly enough to read road signs and detect hazards. If your vision falls below the standard but is not so poor that the state suspends your license outright, you may receive an FN restriction instead. This allows you to drive during daylight, when vision demands are lower, while protecting public safety during nighttime hours when visibility is limited.

Medical conditions can also trigger an FN restriction. Cataracts, macular degeneration, diabetic retinopathy, and other eye diseases may make nighttime driving unsafe even if daytime vision is acceptable. A doctor's report to the Alabama Department of Public Safety can result in an FN code being added to your license. Some drivers receive FN restrictions after a serious accident or medical event — a stroke, seizure, or medication change — if the state determines that full driving privileges are too risky but daytime driving is safe.

Age can be a factor as well. Older drivers who fail vision tests may receive an FN restriction as an alternative to losing their license entirely, allowing them to maintain independence for daytime errands while reducing accident risk.

How an FN restriction affects your driving privileges

With an FN restriction, you can drive during daylight hours without any additional paperwork or special permission. You do not need to carry a separate document or notify anyone each time you drive during the day. Your regular Alabama driver license, with the FN code printed on it, is all you need.

The restriction becomes a violation the moment the sun sets. Driving between sunset and sunrise — even for a short distance, even in an emergency — is illegal. If a police officer stops you during nighttime hours, you can be cited for violating the restriction. The ticket is typically a traffic violation, not a criminal charge, but it can result in fines and points on your driving record. A second or third violation may lead to license suspension.

You should know the exact sunrise and sunset times for your area on any given day. Alabama's sunrise and sunset times change throughout the year, so a time that is legal in summer may not be legal in winter. Many drivers set phone reminders or check a sunrise-sunset app before driving near dawn or dusk to avoid accidentally violating the restriction.

How to get an FN restriction removed

The path to removal depends on why the restriction was issued. If your FN code is based on vision, you will need to pass a vision test administered by the Alabama Department of Public Safety. You can schedule a vision screening at any driver license office. The test checks your visual acuity, peripheral vision, and ability to see colors. If you pass, the restriction can be removed on the spot or within a few business days.

If your FN restriction is tied to a medical condition, you will typically need a letter from your doctor stating that the condition has improved or been treated and that you are safe to drive at night. The letter should be specific — it should say that nighttime driving is safe, not just that your general health is good. You submit this letter to the Alabama Department of Public Safety along with a request to remove the restriction. The state may ask for additional medical records or may require you to pass a vision test as well.

Some FN restrictions are temporary and expire automatically after a set period — for example, after a medical event, the state may impose FN for 90 days and then remove it if no new violations occur. Check your license or contact the Alabama Department of Public Safety to find out whether your restriction has an expiration date.

FN restrictions and car insurance

An FN restriction on your license does not automatically disqualify you from getting car insurance, but it does affect how insurance companies view your risk. The restriction signals that you have a vision problem or medical condition that the state considers a safety concern. Some insurers will insure you at standard rates; others will charge a higher premium because the restriction increases the likelihood of an accident claim.

When you get a quote for insurance, you should disclose the FN restriction. Failing to mention it could give the insurance company grounds to deny a claim later if you are in an accident. Some insurers may ask you to provide medical documentation or a letter from your eye doctor confirming that your vision is safe for daytime driving. A few insurers may decline to cover you altogether, though this is less common.

If you are having trouble finding affordable insurance with an FN restriction, you may be able to get coverage through Alabama's assigned risk pool, which is a program that ensures high-risk drivers can obtain liability insurance. Rates in the assigned risk pool are higher than standard rates, but coverage is available. Contact the Alabama Insurance Guaranty Association for information about assigned risk coverage in your state.

Difference between FN and other license codes

Alabama uses several restriction codes on driver licenses, and it is important to understand what yours means. An FN (Functional Nighttime) restriction means daytime driving only. A corrective lenses restriction means you must wear glasses or contact lenses whenever you drive. A mechanical device restriction means you must use hand controls or another adaptive device. These restrictions can appear together — for example, you might have both an FN restriction and a corrective lenses restriction.

A suspension is different from a restriction. A suspension means your license is not valid at all; you cannot drive legally under any circumstances. An revocation is permanent suspension and usually requires you to reapply for a license after a waiting period. An FN restriction, by contrast, allows you to drive as long as you follow the time-of-day limit.

What to do if you receive an FN restriction

If you receive notice that an FN restriction has been added to your license, read the letter carefully to understand the reason. The Alabama Department of Public Safety will explain whether the restriction is based on vision, a medical condition, or another factor. If you disagree with the restriction, you have the right to request a hearing. The letter will include instructions on how to appeal.

If you accept the restriction, your next step is to plan your driving around daylight hours. Update your phone's calendar or set reminders for sunset times in your area. Let family members and coworkers know about the restriction so they understand why you cannot drive them at night. If you have a job that requires nighttime driving, talk to your employer about adjusting your schedule or finding another solution.

Begin working on removal as soon as possible. If the restriction is vision-based, schedule a vision test. If it is medical, contact your doctor and ask them to write a letter confirming that nighttime driving is safe. The sooner you gather the necessary documentation, the sooner you can request removal.

Frequently Asked Questions

Can I drive during twilight or dusk if I have an FN restriction?

Twilight and dusk are gray areas. Technically, you can drive as long as the sun is above the horizon, but if you are stopped by police during twilight, the officer may cite you if they believe it was dark enough to require headlights. To be safe, stop driving 15 to 30 minutes before sunset and do not resume until 15 to 30 minutes after sunrise. Check a sunrise-sunset app for exact times.

Will an FN restriction show up on my driving record if I explore for a job?

An FN restriction is part of your license record and will appear on a driving history report if an employer requests one. Jobs that require driving, especially commercial or delivery positions, may disqualify you if you have an FN restriction. Jobs that do not involve driving will not care about the restriction.

Can I get the FN restriction removed before my vision test is scheduled?

No. The restriction stays on your license until you pass a vision test or provide medical clearance, depending on the reason for the restriction. You cannot request early removal without meeting the requirements. However, you can call the Alabama Department of Public Safety to ask about scheduling a vision test as soon as possible.

What happens if I get caught driving at night with an FN restriction?

You can be cited for violating the restriction. The fine varies but is typically $100 to $300. The violation will be added to your driving record and may result in points. A second violation within a certain period may lead to license suspension. If you are in an accident while driving illegally at night, your insurance company may deny your claim.

Does an FN restriction mean I need a special type of insurance?

No, you do not need a special type of insurance. You need standard liability insurance, just like any other driver. However, some insurers may charge higher premiums because the restriction indicates a safety risk. Shop around with multiple insurers to find the best rate for your situation.