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Free Practice Questions for Idaho CDL School Bus

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Exam Review

Key Facts: Idaho CDL School Bus Exam

P + S

Endorsements required for an Idaho school bus driver

ITD CDL page and 49 CFR 383.123

10 hours

New-driver practical training, including at least six behind the wheel

SISBO

$5

Idaho fee for each CDL knowledge-test attempt

ITD CDL fee schedule

80%

Federal minimum correct score for each CDL knowledge test

49 CFR 383.135

Not published

Current official School Bus knowledge-test item count and time limit

ITD public CDL sources reviewed 2026-10-03

Study Idaho CDL Manual Sections 2, 4, 10, and the skills chapters, plus SISBO driver requirements and Idaho school-bus laws. The state charges $5 per knowledge test and uses the 80% federal knowledge standard, but ITD does not publish a current S-test item count or time limit.

Sample Idaho CDL School Bus Practice Questions

Try these sample questions to review concepts for the Idaho CDL School Bus exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 112+ question experience with AI tutoring.

1Which CDL endorsements must an Idaho driver hold to operate a school bus carrying students?
A.Both Passenger (P) and School Bus (S)
B.School Bus (S) only
C.Passenger (P) and Tank (N)
D.Passenger (P) only
Explanation: Idaho requires school bus drivers to hold both the Passenger and School Bus endorsements. Federal rules likewise require an S applicant to qualify for the P endorsement through its knowledge and skills tests.
2Before a new Idaho school bus driver may transport students, which state training package must be completed?
A.Six hours of classroom study with no road practice
B.Ten hours of route observation followed by a waiver from behind-the-wheel, evacuation, and driver-evaluation requirements
C.Ten practical hours, including six behind the wheel, plus an evacuation practical and driver evaluation
D.A district orientation after the first student route
Explanation: Idaho's SISBO standards require ten hours of practical training, including at least six hours behind the wheel. The new driver must also complete an emergency-evacuation practical and receive a driver evaluation before driving a bus loaded with students.
3What annual refresher training does Idaho require for an experienced school bus driver?
A.Three hours before school begins plus one later meeting, with additional training required only after a preventable crash
B.Ten hours each fiscal year, including three pre-service hours and three documented in-service sessions
C.Six hours once every two years
D.Ten hours only after a preventable crash
Explanation: SISBO requires at least ten hours of refresher training each fiscal school year. At least three hours must occur before school begins, and the year must include at least three documented, topic-specific in-service sessions of at least 30 minutes each.
4Which records must an Idaho district maintain to support a school bus driver's continuing qualification?
A.Only a copy of the driver's ordinary Class D license
B.Only the driver's classroom attendance sheet
C.Only a federal criminal-history report, an annual sex-offender check, and the original employment application
D.The CDL, medical certificate, training and test records, evaluations, and driving-record documentation
Explanation: SISBO requires a secure personnel file containing the driver's CDL, medical documentation, training and test records, and evaluation materials. Idaho also requires pre-employment and annual driving-record checks, while public-school employees with unsupervised student contact are subject to the state's background-investigation system.
5What are the Idaho DMV fee and waiting rule after a failed School Bus endorsement knowledge test?
A.A $20 endorsement-addition fee and a 14-day wait before purchasing a new knowledge-test attempt
B.No fee and an immediate retest
C.A $29 fee and a 30-day wait
D.Another $5 fee and a three-day wait before retesting
Explanation: ITD charges $5 for each CDL knowledge or endorsement knowledge test. Current ITD guidance permits a retest after three days and requires another $5 fee.
6Which vehicle must an Idaho applicant use for the School Bus endorsement driving skills test?
A.A school bus in the same vehicle group as the school bus the applicant will drive
B.Any passenger car if an Idaho school transportation supervisor rides along
C.A transit bus from any vehicle group, provided it has air brakes and passenger seats
D.Any commercial vehicle covered by the applicant's learner's permit
Explanation: Under 49 CFR 383.123, the School Bus endorsement skills test must be taken in a school bus of the same vehicle group as the school bus the applicant will drive. This practical test is separate from the P and S knowledge requirements.
7When approaching an Idaho student stop, when should a school bus driver activate the alternating amber warning lights?
A.Only after the bus has stopped and the door is open
B.At least 200 feet, or approximately 5 to 10 seconds, before the stop
C.Exactly 50 feet before the stop
D.Whenever the bus enters the same street as the stop, regardless of the distance or travel time remaining
Explanation: Section 10 of the Idaho CDL Manual directs the driver to activate the alternating amber lights at least 200 feet, or about 5 to 10 seconds, before stopping. This advance warning gives nearby motorists time to recognize the planned stop.
8On a two-lane Idaho highway, what must motorists do when a stopped school bus is displaying its required red visual signals?
A.Only traffic behind the bus must stop
B.Oncoming traffic may pass below 15 mph when no child is visible entering the roadway
C.Traffic approaching from both directions must stop before reaching the bus
D.Traffic may pass after sounding the horn
Explanation: Idaho Code section 49-1422 requires drivers meeting or overtaking the signaled school bus to stop before reaching it. They must remain stopped until the bus resumes motion or the visual signals are no longer operating.
9When does Idaho Code section 49-1422 excuse oncoming traffic from stopping for a school bus's red visual signals?
A.Whenever the road has a painted center turn lane
B.Only when a concrete barrier divides the road
C.Whenever the posted speed is at least 55 mph
D.When the highway has more than three lanes
Explanation: The current Idaho statute says oncoming traffic is not required to stop on a highway of more than three lanes. It does not condition that exception on the presence of a physical median barrier.
10What Idaho consequences apply to a first conviction for illegally passing a stopped school bus under section 49-1422?
A.A $300 infraction fine and four driver-violation points
B.A warning with no points
C.A $100 fine and one point
D.Mandatory jail time with no fine
Explanation: Section 49-1422 sets a $300 fine for the first offense. Idaho's official traffic-conviction schedule assigns four points to a conviction under that section; repeat offenses within five years carry more serious statutory penalties.

About the Idaho CDL School Bus Exam

Idaho school bus drivers need both P and S endorsements, knowledge and practical CDL testing, and additional state school-bus training and evaluations. This independent English-language four-option MCQ study adaptation by OpenExamPrep focuses on Idaho law and procedures; it is not an official translation or test simulation and cannot replace behind-the-wheel, evacuation, or skills practice.

Exam sponsor: Idaho Transportation Department Division of Motor Vehicles; Idaho Department of Education and local employers for additional school bus driver requirements. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Applicants qualify for both Passenger and School Bus endorsements through knowledge and skills testing. They complete the three CDL skills segments in a representative school bus and must also satisfy Idaho school bus training, evacuation, evaluation, medical, driving-record, and applicable background requirements before transporting students.

Time Limit

ITD does not publish a School Bus knowledge-test time limit

Passing Score

At least 80% correct on each CDL knowledge test; 80% or better on the Idaho school bus classroom curriculum tests

Exam / Certification Fees

$5 each CDL knowledge test; $29 CLP; $200 skills test; $40 four-year or $60 eight-year CDL

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

SISBO; no percentage blueprint published

Idaho School Bus Driver Requirements

Training, evacuation practical, driver evaluation, medical status, records, and continuing qualification.

Idaho Code 49-1422 and CDL Manual Section 10

Student Stops and State Law

Warning lights, safe loading, danger zones, motorist duties, lawful signal use, and penalties.

Idaho Code 33-1508 and CDL Manual Section 10

Railroad and Emergency Safety

Mandatory railroad stops, obscured-view procedures, emergency exits, evacuation, and student management.

CDL Manual Sections 11 to 13

Practical Skills

Inspection, basic control, on-road driving, and student discharge performance.

Preparing for the Idaho CDL School Bus Exam

What You Need to Know

  • Passing score: At least 80% correct on each CDL knowledge test; 80% or better on the Idaho school bus classroom curriculum tests
  • Assessment: Applicants qualify for both Passenger and School Bus endorsements through knowledge and skills testing. They complete the three CDL skills segments in a representative school bus and must also satisfy Idaho school bus training, evacuation, evaluation, medical, driving-record, and applicable background requirements before transporting students.
  • Time limit: ITD does not publish a School Bus knowledge-test time limit
  • Exam / certification fees: $5 each CDL knowledge test; $29 CLP; $200 skills test; $40 four-year or $60 eight-year CDL Official sources

Using Our Practice Resources

  • Work through all 112 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Idaho CDL School Bus: Suggested Study Strategy

1Study the P and S requirements together; Idaho school bus drivers need both endorsements.
2Use the current SISBO standards for Idaho-specific training and personnel requirements.
3Memorize the current more-than-three-lanes wording in Idaho Code 49-1422 rather than adding a physical-barrier condition.
4Practice evacuation, inspection, student discharge, and on-road skills in person; MCQs cannot demonstrate them.

Frequently Asked Questions

Does Idaho publish the number of School Bus endorsement questions?

No current item count was found in ITD's public CDL page, current manual, or current CDL process guide. OpenExamPrep therefore does not state an official count.

Does an Idaho school bus driver need both P and S endorsements?

Yes. Federal and Idaho sources require Passenger qualification as part of obtaining the School Bus endorsement.

What Idaho practical training is required before a new driver carries students?

SISBO requires ten practical hours with at least six behind the wheel, an emergency-evacuation practical, and a driver evaluation, in addition to applicable federal ELDT and CDL skills testing.

What language is used for CDL skills testing?

Federal rules require skills-test commands and responses in English. ITD's current public pages do not provide a current CDL knowledge-test language list, so applicants should confirm availability with ITD.