The School Bus endorsement test
Four subjects, and the danger zone is most of the point.
Last verified 23 September 2026. Subject list from 49 CFR 383.123(a)(2); pass mark from 383.135. Our practice tests for this line are on sale: General Knowledge is 5 credits, each endorsement is 1, and the learner permit tests are free. /cdl says what they are built from.
It sits on top of Passenger
A school bus driver holds both endorsements. School Bus does not replace Passenger Transport, it adds to it, so the studying is the six subjects of the one and the four of the other.
Four subjects
49 CFR 383.123(a)(2) names loading and unloading children; emergency exits and evacuation; railroad-highway grade crossings; and operating practices and procedures.
Loading and unloading is the whole safety case
Children are hurt around a stopped school bus more often than inside a moving one. The area close to the bus where the driver cannot see is the single most examined idea in this endorsement, and the questions come at it from several directions: where a child should walk, where they should never bend down, how the driver counts them, and what to do when one is missing at the stop.
Evacuation is a decision before it is a procedure
The exits questions are less about which window opens and more about whether to move children at all. Staying aboard is sometimes the safer answer, and the test asks candidates to tell the cases apart.
The crossing subject appears twice in your studying
It is on this list and on the Passenger list, and that repetition is deliberate in the regulation rather than an oversight. A bus carrying children stops at crossings under a procedure of its own.
The one count New York does publish
School Bus is the only knowledge test the state gives a question count for. Our own forms run twenty questions. For every other test on this line the count is ours and we say so.
Practice the real thing
This endorsement and Passenger Transport are studied together, so read the Passenger guide beside this one. Our forms for both are on sale at 1 credit each; the CDL page says what they are built from.
More on the New York CDL and permit
- Which New York CDL tests do you actually need?
- What is on the CDL General Knowledge test?
- The CDL Air Brakes test, and the restriction behind it
- The CDL Combination Vehicles test
- The Doubles and Triples endorsement test
- The Passenger Transport endorsement test
- The Tank Vehicles endorsement test
- The Hazardous Materials endorsement
- The New York learner permit written test