What Class License Do You Need to Drive a Bus?
Your complete guide to the right CDL, requirements, and everything in between.
Introduction
If you’ve ever imagined yourself behind the wheel of a city transit bus, a school bus, or a charter coach, the first step is figuring out which driver’s license class will legally allow you to do it. In most countries the answer is a Commercial Driver’s License (CDL), but the exact class—Class A, B, or C—depends on the type of bus you want to operate, its weight, and whether it’s pulling a trailer. This post walks you through the licensing hierarchy, the qualifications you’ll need, and the steps to get on the road in a clear, second‑person format.
1. Understanding the CDL Classes
| CDL Class | Typical Bus Types | Vehicle GVWR (Gross Vehicle Weight Rating) | Trailer/Combination | Key Uses |
|---|---|---|---|---|
| Class A | Large motorcoaches, double‑deckers, articulated (bendy) buses, bus‑and‑trailer combos | > 26,001 lb (combined vehicle) | > 10,000 lb trailer | Intercity charter, tour coaches, airport shuttles, “rig” style buses |
| Class B | Standard city transit buses, school buses, single‑unit motorcoaches | > 26,001 lb (single vehicle) | ≤ 10,000 lb trailer (if any) | Local transit, school routes, private charter (no big trailer) |
| Class C | Small passenger vans, minibusses (≤ 16 passengers), vehicles transporting hazardous materials | < 26,001 lb or ≤ 10,000 lb trailer | Not applicable for full‑size buses | Special‑needs transport, “shuttle” vans, limited passenger service |
Quick Takeaway: For any full‑size bus (city, school, or motorcoach) you’ll need Class B at a minimum. If you plan to haul a trailer or drive an articulated coach, you’ll bump up to Class A. Class C is rarely used for conventional buses.
2. When Do You Need a Passenger Endorsement?
In the United States, a Passenger (P) endorsement is mandatory for any vehicle designed to carry more than 15 passengers, including the driver. This applies to both Class A and Class B CDLs. The endorsement is obtained after you pass an additional written and road‑test focused on passenger safety, emergency exits, and loading procedures.
| Endorsement | When Required | How to Obtain |
|---|---|---|
| P – Passenger | Buses, large vans, or any vehicle with ≥ 16 seats | Pass the Passenger knowledge test + road skills test (often combined with the CDL skills test) |
| S – School Bus | School buses (any size) | Pass the School Bus knowledge test (often part of the P endorsement) |
| M – Manual Transmission | If your bus has a manual gearbox | Pass a separate manual driving test (optional if you only drive automatics) |
3. Step‑by‑Step Roadmap to Your Bus CDL
- Check Eligibility
- Minimum age: 18 for intrastate (within a single state) driving, 21 for interstate.
- Clean driving record: No major violations (e.g., DUIs, reckless driving) in the past 3‑5 years.
- Study the CDL Manual
- Obtain the driver’s handbook for your state (or province). Focus on Chapters 1‑4 (general knowledge) and the Passenger section.
- Pass the CDL Knowledge Tests
- General Knowledge (covers all CDLs).
- Passenger (P) and possibly School Bus (S) if you plan to drive a school bus.
- Some states also require an Air Brakes test if the bus uses air‑brake systems.
- Get a Commercial Learner’s Permit (CLP)
- Valid for 6 months; you must hold it for at least 14 days before the skills test.
- Complete Behind‑the‑Wheel Training
- Minimum 30‑hour classroom + 40‑hour behind‑the‑wheel instruction (varies by state). Many driving schools specialize in bus training.
- Pass the CDL Skills Test
- Pre‑Trip Inspection – you’ll demonstrate knowledge of emergency exits, fire extinguishers, and safety equipment.
- Basic Vehicle Control – maneuvering the bus in a confined space.
- Road Test – normal driving, lane changes, stops, and passenger‑related scenarios (e.g., safe loading/unloading).
- Obtain the Endorsements
- Take any additional tests for P, S, or M endorsements.
- Medical Clearance
- Pass a DOT physical exam (form MVR‑4). Buses require a Class III medical certificate.
- Background Check (if driving a school bus)
- Fingerprinting and criminal‑record checks are mandatory for transporting minors.
- Maintain Your License
- Renew every 5 years (or per state schedule). Keep your medical certificate current and log your driving hours if you work for a commercial carrier.
4. Special Considerations for Different Bus Types
City Transit Buses (Class B + P)
- Weight: Typically 30,000–40,000 lb.
- Key skills: Precise stopping at bus stops, handling tight city streets, passenger communication.
School Buses (Class B + P + S)
- Unique duties: Conducting a pre‑trip safety inspection of stop‑arm mechanisms, flashing lights, and emergency exits.
- Training focus: Child‑safety protocols, “STOP‑SIGN” procedures, and behavioral management.
Motorcoach/Charter Buses (Class A or B + P)
- Long‑haul: Requires knowledge of interstate regulations, hours‑of‑service (HOS) rules, and driver‑log management.
- Passenger comfort: Understanding of HVAC, onboard amenities, and wheelchair‑lift operation (often an additional L endorsement).
5. Frequently Asked Questions (FAQ)
| Question | Answer |
|---|---|
| Do I need a separate license to drive a school bus? | No separate “school bus license,” but you need a Class B CDL with both the P (Passenger) and S (School Bus) endorsements and must pass a background check. |
| Can I drive a bus with an automatic transmission without a manual endorsement? | Yes. The M endorsement is only required if you’ll operate a manual‑shift bus. Most modern city buses are automatic. |
| What if I already have a regular driver’s license? | You’ll still need to obtain a CDL because a standard Class D license does not cover vehicles over 10,000 lb or with passenger capacities above 15. |
| How long does the entire process take? | Typically 3–6 months if you enroll in a full‑time bus‑training program. It can be faster if you already have a CLP and meet all medical/record requirements. |
| Do I need to retake the knowledge test for each endorsement? | Yes, each endorsement (P, S, M, etc.) has its own written exam. The skills test is usually combined for the CDL and any endorsements you’re pursuing. |
| Is there an age limit for getting a bus CDL? | Minimum age is 18 (intrastate) or 21 (interstate). There’s no maximum age, but you must pass the DOT medical exam every 5 years (or more often if required). |
| Can I add endorsements later? | Absolutely. You can schedule endorsement tests after you already hold a CDL. Many drivers add the P endorsement after a few months on the job. |
| What about hazardous materials (HazMat) on a bus? | Most passenger buses don’t transport HazMat, but if you ever need to, you’ll need a HazMat endorsement (X) and a Transportation Security Administration (TSA) background check. |
6. Quick Checklist Before You Hit the Road
- Age verified (18 + intrastate, 21 + interstate)
- Clean driving record (no disqualifying offenses)
- CDL knowledge tests passed (General + Passenger, + School if needed)
- Commercial Learner’s Permit obtained and held for ≥ 14 days
- DOT medical certificate (Class III) current
- Behind‑the‑wheel training completed (30 h classroom, 40 h driving)
- Skills test (pre‑trip, basic control, road) passed
- Endorsements (P, S, M, etc.) added as required
- Background check (for school bus drivers) completed
Final Thought
Driving a bus is a rewarding career that puts you at the heart of community mobility—whether you’re ferrying kids to school, shuttling commuters across downtown, or taking tourists on an unforgettable scenic tour. By understanding which CDL class you need, scoring the right endorsements, and following the step‑by‑step pathway outlined above, you’ll be well on your way to earning that coveted “bus driver” badge of honor.
Now that you have the roadmap, grab that driver’s manual, sign up for a reputable bus training program, and start steering toward a future on the open road—literally! Safe travels.

