AhaBulbStuff Everyone Should Know
AhaBulb: Stuff Everyone Should Know · ahabulb.com/cdl-class-a-drives-b-and-c

If you hold a Class A CDL, can you also drive Class B and C vehicles?

Yes, as long as you have any endorsements the vehicle needs.

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  1. Yes, if you have the needed endorsements ✔
  2. No, you need a separate test for each class
  3. Only Class B, never Class C

Why: Passing the Class A knowledge and skills tests also covers heavy straight trucks and small vehicles. You still need the right endorsement, such as P for a bus.

Huh, didn't know that: A Class B holder can likewise drive Class C vehicles, but never a Class A combination.

The dad joke
Why did the Class A driver feel so confident? Every class was beneath them.
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References

Answer: Yes, if you have the needed endorsements. Passing the Class A knowledge and skills tests also covers heavy straight trucks and small vehicles. You still need the right endorsement, such as P for a bus.

  1. 49 CFR 383.91 Commercial motor vehicle groups (eCFR) www.ecfr.gov/current/title-49/section-383.91
    may operate a heavy straight vehicle (Group B) or a small vehicle (Group C), provided that he/she possesses the requisite endorsement(s)
    Checked 2026-10-10.

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Trucking (CDL)Which CDL class do you need for a combination over 26,000 lbs towing a trailer over 10,000 lbs?Trucking (CDL)A single truck rated 26,001 lbs or more, towing nothing over 10,000 lbs, needs which CDL class?Trucking (CDL)A smaller vehicle needs a Class C CDL when it carries hazmat that needs placards or how many people?

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