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The school bus endorsement applies to applicants who wish to drive a school bus in any Class A or B CDL. To add an S endorsement to your CLP/CDL, you must pass the Idaho school bus test, and you must also pass skills tests in a school bus. The ID CDL bus test consists of 20 questions, and you'll need at least 16 correct answers to pass (80%). The knowledge test covers the following sections of the Idaho CDL Manual: School Buses, Vehicle Inspection Test, Basic Control Skills Test and Road Test. After studying, take this ID CDL practice test to prepare for the actual bus test!
1. During unloading, if the school bus driver cannot account for a student outside the bus, the driver should:
secure the bus, and check around and underneath the bus.
walk through the bus to ensure the students is not on the bus.
assume the student got back on the bus.
2. When you need to brake, you should warn the drivers behind:
by flashing your brake lights.
by changing lanes.
by making gestures.
3. How can you tell if your vehicle is equipped with ABS?
Look for yellow ABS malfunction lamps on the instrument panel.
Trailers will have yellow ABS malfunction lamps on the left side.
All of the above.
4. When driving on a slippery surface, you should do all of the following except:
keep a shorter following distance.
not pass slower vehicles unless necessary.
adjust braking to conditions.
5. When driving in heavy traffic, the safest speed is:
slower than the speed of other traffic.
the speed of traffic.
the posted speed limit.
6. In an emergency:
you should keep one hand on the steering wheel.
you should never turn to miss an obstacle.
stopping is not always the safest thing to do.
7. Baggage and freight should be secured in a way that:
allows riders to easily identify their baggage before they get off the bus in an emergency.
allows riders to exit by any window or door in an emergency.
allows riders to quickly take their baggage with them in an emergency.
8. When checking your mirrors you should:
use both mirrors.
only use the driver side mirror.
only use the passenger side mirror.
9. You hear a loud "bang" which sounds like a tire blowout. You should:
check the tires at the next stop.
keep driving as normal.
assume you have a tire failure.
10. Do not push or tow a disabled bus with riders aboard the vehicle, unless:
the distance to be covered is less than 5 miles.
the majority of the passengers agree.
getting off would be unsafe.
 
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Frequently Asked Questions

If you are between 14½ and under 17 years old you must follow the Graduated Driver Licensing (GDL) Program. You can apply for a supervised instruction permit and complete an approved driver training program. After 6 months of violation-free supervised driving, you can apply for a restricted driver’s license (it will be restricted until your 18th birthday).

If you are 17 or older you can apply for a class D instruction permit and after six months of supervised driving, you can obtain a class D driver’s license.

To schedule the DMV written test in Idaho, you can visit your county Sheriff’s DMV office in person. Find the Idaho DMV office nearest to you and check its business hours.

You are required to bring the following documents:
  • Proof of identity and age.
  • Photo ID.
  • Proof of Idaho residency.
  • Social Security Card.
  • Proof of US citizenship or legal presence.
  • Driver training completion certificate (for applicants under 17).
  • Liability Signer (for those under 18, a parent or guardian must sign consent for licensing).
  • Proof of school enrollment (for those under 18).

Additionally, if applicable:
  • Foreign driver’s license.
  • Medical certification (if you have a medical condition that may affect your ability to drive).

Use the tool provided by the Idaho Transportation Department to create a checklist of the necessary documents.

The DMV written test in Idaho is offered in various languages, including English, Arabic, Chinese, Farsi, French, Korean, Russian, Servo-Croatian, Spanish, Vietnamese and ASL (American Sign Language). Although language options are provided, it is advisable to have a basic understanding of English since road signs are always in English.
The DMV written test covers various topics, such as road signs, parallel parking, turning, passing a vehicle, yielding the right of way, etc. Studying the official Idaho Driver’s Handbook is the first step to prepare for the exam because it contains all of this information. Once you've read it, you can take our free practice tests!
The Idaho DMV written test consists of 40 questions and is based on the information provided in the manual. Taking numerous practice tests and thoroughly reading the handbook will increase your chances of success.

You are allowed to miss up to 6 questions, with a minimum accuracy rate of 85%. Using any written, audio, or electronic aid is forbidden.

New drivers in Idaho are subject to specific restrictions:

  • If you are younger than 16, you can drive only during daylight hours, except when accompanied by a licensed driver aged at least 21, who must be seated beside you.  Additionally, you cannot transport any other passengers
  • If you are under 17, during the first six months from the date the license was issued, you can only transport one passenger under 17 or family members.
  • If you are under 21, you cannot drive after drinking any amount of alcohol (Zero Tolerance law).
An Idaho instruction permit remains valid for 180 days after successfully completing a driver training program and the GDL Program. You can renew the permit once without retaking the knowledge test, as long as you took it within the past 12 months.
If you fail your DMV written test, you must wait three days to retest and pay another application fee. Sign up for DMV Premium and practice with extra tests to maximize the chance of passing!

ID CDL School Bus Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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