License Classes, Endorsements & Restrictions

A license isn't one-size-fits-all. Classes define what you can drive, endorsements add extra permissions, and restrictions limit how you can drive — together they spell out exactly what's on your card.

Provisional licenseFull licenseAll U.S. states
⏱️ About 12 min

Look closely at any driver's license and you'll find more than a photo and a name — a class letter, sometimes an endorsement code, sometimes a restriction code. Each one answers a different question: what can you drive, what extra thing can you do, and under what limits.

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The big idea: A class defines the category of vehicle you're licensed for (a regular passenger car versus a large truck or bus, for instance). An endorsement adds permission for something extra, like carrying passengers for hire or hazardous materials. A restriction limits how you must drive, like needing corrective lenses or an automatic transmission. Commercial classes and endorsement codes follow a federally standardized system; regular (non-commercial) license classes and restriction codes are set state by state.
🎯 By the end, you'll be able to
  • Distinguish what a license class, an endorsement, and a restriction each control
  • Know that commercial (CDL) classes A/B/C are federally standardized nationwide
  • Recognize that regular, non-commercial license classes and restriction codes vary by state
  • Identify common restriction types like corrective lenses, automatic-only, and GDL limits
📎 Helpful to know first

License class: what you're licensed to drive

A license class defines the category of vehicle you're allowed to operate. Every state has a regular class for ordinary passenger cars and light trucks — most drivers spend their whole driving life in that one class. Beyond that, commercial driver's licenses (CDLs) cover larger and heavier vehicles.

🔑 Commercial classes A, B, and C are standardized nationwide

Because commercial vehicles cross state lines constantly, commercial license classes follow one federally standardized framework:

  • Class A — combination vehicles above a set weight, such as a tractor-trailer.
  • Class B — large single (non-combination) vehicles above a set weight, such as a straight truck or a large bus.
  • Class C — smaller commercial vehicles that carry hazardous materials or a set minimum number of passengers.

These three letters mean the same thing in every state.

🗺️ Regular (non-commercial) class letters vary by state
Outside of commercial driving, states don't use one shared lettering system. A regular passenger license might be called Class D in one state, Class C in another, or simply a 'driver license' with no class letter at all elsewhere. Motorcycle classes and letters also differ by state. Check your own license or state DMV site for what your state calls its classes.

Endorsements: extra permission for extra capability

An endorsement adds permission for something a base class doesn't automatically include. For commercial licenses, endorsement codes are also federally standardized — for example, a passenger endorsement to carry riders for hire, a hazardous-materials endorsement, a school-bus endorsement, or a tank-vehicle endorsement. For regular licenses, the most common example is a motorcycle endorsement added to an existing car license rather than requiring a separate card.

Restrictions: limits on how you may drive

A restriction doesn't add capability — it limits it. Common examples include:

  • Corrective lenses required — you must wear glasses or contacts while driving.
  • Automatic transmission only — often applied after a road test taken in an automatic-transmission vehicle.
  • Daytime driving only or other vision/medical-based limits.
  • GDL restrictions for provisional drivers — the night curfew and passenger limits covered in the first lesson of this module.
🗺️ Restriction codes and exact wording vary by state
The letters or symbols used to print a restriction on your license — and which restrictions a state applies automatically versus by request — differ from state to state. Read your own license or ask your DMV to decode any restriction code you don't recognize.
⚠️ Driving outside your class or restrictions is a violation
Operating a vehicle your class doesn't cover, ignoring a printed restriction (like driving without required corrective lenses), or driving beyond a provisional restriction are all treated as licensing violations, separate from any other traffic offense you might commit while doing it.

Check your understanding

1. What does a license CLASS control?
Class defines the vehicle category — regular passenger vehicle versus various commercial categories, for example.
2. Which part of the commercial licensing system is standardized nationwide?
CDL classes and endorsement codes follow one federally standardized framework since commercial drivers cross state lines.
3. A restriction on a license typically means:
Restrictions limit driving conditions (lenses required, automatic-only, daytime-only, GDL limits) rather than add capability.
4. Regular, non-commercial license class letters (like 'Class D'):
Unlike CDL classes, regular license class letters aren't standardized nationwide and differ from state to state.
🔎 Related lessons
How U.S. Licensing Works Next: IDs, Documents & Keeping Your License Valid Large Trucks & Buses (the No-Zone)
✅ Key takeaways
  • Class = what vehicle category you're licensed for; endorsement = extra permission added; restriction = a limit on how you may drive.
  • CDL classes A, B, and C and their endorsement codes are federally standardized nationwide.
  • Regular (non-commercial) license class letters and restriction codes are set state by state.
  • Driving outside your class or ignoring a printed restriction is its own licensing violation.
➡️ Now that you know what's printed on your license and why, let's look at the documents behind it and how to keep the license itself valid over time.

Frequently asked questions

What's the difference between a license class and an endorsement?
A class defines the vehicle category you're licensed for; an endorsement adds permission for something extra, like carrying hazardous materials or passengers for hire on a commercial license.
Are CDL classes the same in every state?
Yes — commercial driver's license classes A, B, and C, and their endorsement codes, follow one federally standardized framework nationwide, since commercial driving regularly crosses state lines.
What does a restriction code on my license mean?
It limits how you may drive — for example, requiring corrective lenses, automatic-transmission-only, or a graduated-license curfew. The exact codes used are set by your own state's DMV.
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Independent educational content — not affiliated with, endorsed by, or connected to any state DMV, the AAMVA, or any government agency. This is study material, not legal advice; always confirm current rules with your state's official driver handbook.