The back of your driver's license holds information the front does not

The back side of your driver's license contains details about restrictions, endorsements, and conditions that explore to your driving privileges. Unlike the front, which shows your name, photo, and basic identification, the back is a legal record of what you are and are not permitted to do behind the wheel. Every state formats this information differently, but the purpose is the same: to communicate to law enforcement and other officials exactly what class of vehicle you can operate and under what conditions.

Understanding what appears on the back of your license matters because it affects your legal right to drive in specific situations. If you are stopped by police, a commercial vehicle inspector, or involved in an accident, the back of your license is the first place an officer looks to determine whether you are breaking the law by driving a vehicle type you are not licensed for. Misreading or ignoring these restrictions can result in citations, fines, or suspension of your license.

Key Takeaways

  • The back of your license lists restrictions (like corrective lenses or automatic transmission only) that you must follow every time you drive.
  • Endorsements on the back show you have met additional requirements to operate specific vehicle types, such as motorcycles or commercial trucks.
  • State-specific codes on the back use abbreviations that vary by state, so the same code may mean different things in different states.
  • If your license shows restrictions you do not agree with or believe are incorrect, you can request a hearing or retest through your state DMV.

Restrictions: What you cannot do

Restrictions are conditions or limitations printed on the back of your license that you must obey. The most common restriction is a requirement to wear corrective lenses (glasses or contacts) while driving. This restriction appears as a code — often "01" or "CL" depending on your state — and means you are breaking the law if you drive without them, even if you feel you can see well enough.

Other restrictions might include automatic transmission only (meaning you cannot legally operate a manual transmission vehicle), mechanical devices required (such as hand controls for a driver with a disability), or daylight driving only. Some states add restrictions based on age: a 16-year-old with a learner's permit may have a restriction limiting when they can drive or who can be in the car with them. Restrictions are enforceable — an officer can cite you for violating them just as they would for speeding.

If you received a restriction during your vision test or medical evaluation, and you later have corrective surgery or a change in your condition, you can request that the restriction be removed. This usually requires a new vision test, a medical form, or a retest at your DMV. Check your state's DMV website for the specific form and process.

Endorsements: Additional driving privileges you have earned

Endorsements are the opposite of restrictions — they show that you have met extra requirements and are now permitted to operate vehicle types that a standard driver's license does not cover. The most common endorsement is "M" for motorcycle. To earn an M endorsement, you typically pass a separate written test, a riding skills test, or a motorcycle safety course, depending on your state.

Commercial endorsements — "A," "B," or "C" for different classes of commercial trucks — require passing a commercial driver's license (CDL) written exam and a road test in the appropriate vehicle. Some states also issue endorsements for hazardous materials (HAZMAT), passenger vehicles (P), or tanker vehicles (T). Each endorsement is tied to a specific vehicle class and has its own renewal timeline and testing requirements.

Endorsements appear as letters or codes on the back of your license. If you want to add an endorsement, you cannot straightforward request it — you must pass the required tests and meet any age or experience requirements your state sets. The process varies by state and by endorsement type, so contact your DMV to learn what tests you need and when you can take them.

State-specific codes and what they mean

Every state uses its own system of codes and abbreviations on the back of the license. A code that means "corrective lenses required" in one state might be "01" in another state and "CL" in a third. This variation exists because states design their own license formats and have no requirement to match each other's codes.

The back of your license should include a legend or key that explains what each code means — usually printed in small text at the bottom or on the back cover of your license. If your license does not include a legend, or if you cannot read it, your state's DMV website will have a complete list. Some states also print the restriction or endorsement in plain language next to the code, which makes it easier to understand at a glance.

If you are moving to a new state or driving in a state other than where you live, remember that your home state's codes may not be when ready obvious to an officer in another state. The officer will have access to a database that translates your codes, but it is helpful to know what your own license says so you can explain it if asked.

Medical conditions and how they appear on your license

If you have a medical condition that affects your ability to drive — such as a seizure disorder, severe hearing loss, or a mobility limitation — your state may require you to disclose it when you renew your license or when you first explore. Depending on the condition and your state's rules, this may result in a restriction, a requirement to provide medical certification, or a conditional license that requires periodic medical review.

Some states print medical conditions directly on the back of the license in code form. Others keep this information in their database but do not print it on the physical card. If your state does print medical information on your license, it appears alongside other restrictions and endorsements. You have the right to request a hearing if you believe a medical restriction is incorrect or if your condition has improved and you want the restriction removed.

The process for removing a medical restriction typically involves submitting a form from your doctor or a medical evaluation completed by a physician your state approves. Timelines vary, but most states will review your request within 30 to 60 days. During that time, you must continue to obey the restriction on your current license.

How restrictions and endorsements affect your insurance and employment

Insurance companies check the back of your license when they issue or renew your policy. If you have a restriction you are violating — for example, driving without corrective lenses when your license requires them — your insurer may deny a claim if you are in an accident. This is because you were driving illegally at the time of the incident.

Employers who hire commercial drivers, school bus drivers, or other professional drivers will review your license and your driving record. An endorsement like "M" or "CDL" is required for certain jobs, and the absence of one can disqualify you. Conversely, restrictions like "daylight driving only" or "automatic transmission only" may prevent you from being hired for roles that require unrestricted driving privileges.

If you are seeking employment that requires specific endorsements or that prohibits certain restrictions, contact your DMV to learn what steps you need to take. Some endorsements require months of preparation and multiple test attempts, so plan ahead if a job opportunity depends on it.

Renewing your license and updating restrictions or endorsements

When you renew your driver's license, your restrictions and endorsements carry forward to your new license unless you take action to change them. If you want to remove a restriction — for example, because you had corrective eye surgery — you must request a new vision test or submit medical documentation before your renewal is processed. If you wait until after your new license is issued, you will have to renew again or explore for a corrected license, which may cost extra.

Adding a new endorsement during renewal is sometimes possible, but it depends on your state and the endorsement type. Some states allow you to add an endorsement at renewal without retesting if you meet certain conditions; others require you to explore separately and pass the full test. Check your state's DMV website or call ahead to learn the process for your specific situation.

When you receive your renewed license, check the back when ready to confirm that all restrictions and endorsements are correct. If something is missing or wrong, contact your DMV right away. Catching errors before you start using the license prevents problems if you are stopped by law enforcement.

Frequently Asked Questions

What does it mean if my license says "corrective lenses required"?

You must wear glasses or contacts every time you drive. Driving without them violates the restriction on your license, and an officer can cite you for it. If you have had eye surgery or your vision has improved, you can request a new vision test to have the restriction removed.

Can I drive a motorcycle if my license does not have an M endorsement?

No. Operating a motorcycle without an M endorsement is illegal, even if you own the motorcycle or have ridden one before. You must pass your state's motorcycle test to earn the endorsement. Some states offer a waiver if you complete an approved motorcycle safety course.

Why do different states use different codes on the back of licenses?

Each state designs its own license format and codes. There is no federal requirement for states to use the same system. Your state's DMV provides a legend that explains what each code on your license means, usually printed on the back of the card or on their website.

If I move to a new state, do my restrictions and endorsements transfer?

No. You must obtain a driver's license from your new state of residence. Your old license's restrictions and endorsements do not automatically transfer. You will need to pass any required tests again and meet your new state's specific requirements for endorsements like CDL or motorcycle.

Can I request a hearing if I disagree with a restriction on my license?

Yes. Most states allow you to request a hearing or appeal if you believe a restriction is incorrect or no longer applies. Contact your state DMV to learn the process and what documentation you need to provide, such as a medical evaluation or vision test results.