What passenger-endorsement tests must a school bus applicant pass?

The knowledge and skills tests for the passenger endorsement

Does the school bus endorsement replace the passenger endorsement?

No, the applicant must still qualify for the passenger endorsement

Which loading topic is required for the school bus knowledge test?

Loading and unloading children, including stop signals, mirrors, flashing lights, and other required warning and safety devices

What emergency topic must school bus applicants know?

Emergency exits and procedures for safely evacuating passengers in an emergency

Which crossing laws are part of the school bus knowledge test?

State and federal laws and regulations for safely traversing railroad-highway grade crossings

Does the school bus knowledge list stop after the named topics?

No, it also includes operating practices and procedures not otherwise specified

What vehicle must be used for the school bus skills test?

A school bus of the same vehicle group as the bus the applicant will drive

Which tests does 49 CFR 383.93 require for a school bus endorsement?

A knowledge test and a skills test

May a commercial learner’s permit carry a school bus endorsement?

Yes, S is one of the endorsements allowed on a CLP

Free CDL School Bus Practice Test: 20 Questions (2026)

What should I study for the CDL school bus endorsement test?

A school bus applicant must qualify for the passenger endorsement, then cover loading and unloading children, warning devices, evacuation, and railroad crossings. The skills test is in a school bus of the same vehicle group. These questions explain 49 CFR 383.123 and 383.93 as checked October 29, 2026. They do not issue an endorsement.

How many questions are on the school bus test?

It depends on your state and the test topic. Official question counts vary by state; check your state manual. This practice pool has 20 questions. Warm-up uses 10; exam mode uses the session length shown above. Those study settings do not set your state’s exam length.

10 sample questions and answers

Read these examples here, or practice the full set above. The wording is independent study material based on federal sources.

How many requirements does 49 CFR 383.123 name for a school bus endorsement applicant?
Answer: Three
The applicant must qualify for the passenger endorsement, pass the school-bus knowledge topics, and take a skills test in a school bus.
- 49 CFR 383.123
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What passenger-endorsement tests must a school bus applicant pass?
Answer: The knowledge and skills tests for the passenger endorsement
Qualifying for the passenger endorsement is the first of the three requirements.
- 49 CFR 383.123
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Does the school bus endorsement replace the passenger endorsement?
Answer: No, the applicant must still qualify for the passenger endorsement
The school-bus section starts by requiring the passenger knowledge and skills tests.
- 49 CFR 383.123
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Which loading topic is required for the school bus knowledge test?
Answer: Loading and unloading children, including stop signals, mirrors, flashing lights, and other required warning and safety devices
The knowledge list names those devices as required by state or federal law.
- 49 CFR 383.123
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What emergency topic must school bus applicants know?
Answer: Emergency exits and procedures for safely evacuating passengers in an emergency
Evacuation is a named knowledge requirement.
- 49 CFR 383.123
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Which crossing laws are part of the school bus knowledge test?
Answer: State and federal laws and regulations for safely traversing railroad-highway grade crossings
Railroad-highway grade crossings are named in the knowledge list.
- 49 CFR 383.123
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Does the school bus knowledge list stop after the named topics?
Answer: No, it also includes operating practices and procedures not otherwise specified
The last knowledge item covers practices the section does not list by name.
- 49 CFR 383.123
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What vehicle must be used for the school bus skills test?
Answer: A school bus of the same vehicle group as the bus the applicant will drive
The skills test must match the vehicle group in 49 CFR 383.91.
- 49 CFR 383.123
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Which tests does 49 CFR 383.93 require for a school bus endorsement?
Answer: A knowledge test and a skills test
School bus is listed as knowledge and skills, separate from the passenger row.
- 49 CFR 383.93
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May a commercial learner’s permit carry a school bus endorsement?
Answer: Yes, S is one of the endorsements allowed on a CLP
The CLP endorsement list is passenger, school bus, and tank vehicle.
- 49 CFR 383.93
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Find your state's CDL manual.

Sources and study scope

The bank uses original questions based on federal rules and FMCSA material. The questions use the 2025 annual CFR edition, with selected current eCFR references checked on October 28, 2026. It is not a complete review of every later amendment. Each explanation links to its federal source. State manuals are further-study links; no AAMVA manual text is reproduced.

The 80% knowledge-test pass standard comes from 49 CFR 383.135. This site’s practice pool and session lengths do not determine your state’s official test format.

Free CDL School Bus Endorsement Practice Test

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