Four endorsements on your driver's license means you have been issued four separate legal permissions or restrictions by your state's Department of Motor Vehicles, each tied to a specific driving privilege or limitation. Each endorsement appears as a code on your license and governs what you are legally allowed to do behind the wheel — or what you must do to drive legally.
Key Takeaways
- Endorsements are codes printed on your license that either grant you permission to do something (like drive a motorcycle) or restrict how you can drive.
- The number of endorsements you hold depends on your driving history, the vehicles you own, and any violations or restrictions imposed by the court or DMV.
- Common endorsements include motorcycle privileges, air brake certification, hazmat transport, and restrictions like corrective lenses or ignition interlock devices.
- You cannot legally exercise a privilege your license does not endorse — driving a motorcycle without an M endorsement, for example, is a violation even if you own the bike.
- Endorsements are state-specific, so the codes and rules vary by location; check your state DMV's website to decode the endorsements on your own license.
How endorsements appear on your license
Endorsements show up as letter codes or numbers printed on the back of your physical license or in the digital record the DMV maintains. Your state's DMV assigns these codes based on what you have been tested for, what vehicles you own, or what restrictions a court or the DMV has placed on your driving. Some endorsements are things you earned by passing a test; others are restrictions you must follow.
The exact format and meaning of each code varies by state. A code that means "motorcycle" in one state may mean something entirely different in another. This is why a license from California does not automatically let you drive a motorcycle in Texas — you would need to meet Texas's requirements and have Texas's endorsement code on a Texas license.
Endorsements that grant driving privileges
Some endorsements are permissions. The most common is the motorcycle endorsement (often coded M or MC), which means you passed a motorcycle safety test or training course and are legally allowed to operate a motorcycle. Without this endorsement, riding a motorcycle is illegal even if you own one and hold a valid driver's license for cars.
Another common privilege endorsement is commercial driving privileges. If you hold a Commercial Driver's License (CDL), you may have endorsements for air brakes (allowing you to operate vehicles with air brake systems), hazmat transport (allowing you to carry hazardous materials), or passenger transport (allowing you to drive buses or vans carrying multiple passengers). Each of these requires a separate written test and, in some cases, a practical driving test.
Some states also issue endorsements for towing (allowing you to tow trailers above a certain weight) or for operating vehicles with manual transmissions in certain commercial contexts. The specific privileges available depend on your state and the class of license you hold.
Endorsements that restrict your driving
Other endorsements are restrictions — conditions you must meet to drive legally. A corrective lenses restriction (often coded as "B" or "corrective lenses required") means your vision does not meet the standard without glasses or contacts, and you must wear them every time you drive. Driving without them is a violation.
An ignition interlock device restriction means you are required to use a breath-alcohol testing device before your vehicle will start. This is typically imposed after a DUI or DWI conviction. You cannot legally drive that vehicle without the device installed and functioning, and you cannot drive any other vehicle without one.
Other common restrictions include limitations on the times you can drive (such as no driving between 10 p.m. and 5 a.m. for a newly licensed teenager), restrictions on passengers (such as no passengers under a certain age), or requirements to use an automatic transmission only. These restrictions appear on your license and are enforceable by law.
Why you might have multiple endorsements
If you hold four endorsements, you likely have a combination of privileges and restrictions. For example, you might have a motorcycle endorsement (privilege), an air brake endorsement (privilege), a corrective lenses restriction (restriction), and an ignition interlock restriction (restriction). Or you might have four separate privileges if you have pursued multiple certifications or own multiple types of vehicles.
The number of endorsements accumulates over time as you pass tests, add vehicles to your household, or face court-ordered restrictions. A person who has never had a violation and drives only a standard car might have zero or one endorsement (such as corrective lenses). A commercial driver or someone with a DUI history might accumulate several.
How to find out what your endorsements mean
Your state's Department of Motor Vehicles publishes a guide to endorsement codes, usually available on its website under "license codes" or "endorsement guide." The guide lists every code used in your state and explains what it means. You can also call your state DMV directly and read the codes from your license; they can tell you what each one means and what it requires of you.
If you are unsure whether you are allowed to do something — drive a motorcycle, tow a trailer, drive a bus — check your license against your state's endorsement guide. If the endorsement is not there, you are not legally permitted to do it, even if you have the skills or the vehicle. Driving without a required endorsement can result in a ticket, fines, or license suspension.
Adding or removing endorsements
You can add an endorsement by passing the required test at your DMV. For motorcycle endorsements, this usually means passing a written test and a practical riding test, or completing an approved motorcycle safety course. For commercial endorsements, you must pass written exams and, in most cases, a driving test with a commercial vehicle.
Removing a restriction endorsement typically requires meeting the conditions set by the court or DMV. For example, an ignition interlock restriction can usually be removed once you have completed the required monitoring period and the device is uninstalled. A corrective lenses restriction can be removed if you pass a vision test without correction. Contact your state DMV to learn the specific process for removing any restriction on your license.
Frequently Asked Questions
Can I drive a motorcycle if my license does not have an M endorsement?
No. Driving a motorcycle without the required endorsement is illegal, even if you own the motorcycle and hold a valid driver's license for cars. You must pass your state's motorcycle test or complete an approved safety course to add the endorsement.
What happens if I drive with a restriction I am not following?
Driving in violation of a restriction — such as driving without required corrective lenses or without an ignition interlock device — is a separate violation and can result in a ticket, fines, and license suspension. The violation is recorded on your driving record.
Do endorsements from one state transfer to another?
No. When you move to a new state and get a new license, you must meet that state's requirements for each endorsement. You may need to retake tests or provide proof of training. Contact your new state's DMV to learn what endorsements you can transfer and what you must test for again.
How do I know if I need a specific endorsement?
Check your state's DMV website for the endorsement guide, which lists what each code means and what activities require it. If you are unsure whether you need an endorsement for something you want to do, call your state DMV and describe the vehicle or activity — they can tell you whether an endorsement is required.