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Any driver, regardless of the vehicle Class, who wants to haul hazardous materials, must add an “H” endorsement to their CDL. In order to obtain the Hazmat endorsement drivers are required to pass a Transportation Security Administration background check and a knowledge test. The Idaho hazmat test consists of 30 questions. To pass, you must correctly answer at least 24 questions (80%). The ID CDL hazmat test covers the information found in the Idaho CDL Manual. Study the chapter covering hazardous materials to learn how to recognize, handle, and transport Hazmat, then take this practice test to prepare for your exam!
1. The tire load rating is stated:
on the side of each tire.
on each axle.
inside the suspension system.
2. When driving at night you should dim your lights when following another vehicle within:
500 feet.
100 feet.
1 mile.
3. Escape ramps:
should not be used unless you have already tried all other possible ways to save your vehicle after brake failure.
cannot be used by certain types of heavy vehicles.
are designed to stop runaway vehicles safely.
4. To avoid becoming a distracted driver you should:
not engage in complex conversations with others.
adjust all vehicle controls and mirrors while driving.
not turn off all communication devices.
5. You should flash your brake lights to warn drivers behind you when:
you see a bus stops in the roadway ahead to unload passengers.
you see a hazard that will require slowing down.
All of the above.
6. If you get stuck on railroad tracks, you should:
stay in the vehicle and call for help.
have a helper push your vehicle.
get out of the vehicle and away from the tracks.
7. Placards must be placed:
less than 3 inches away from any other markings.
so the words or numbers are read from left to right.
so that the format, color, and message can only be seen by the driver.
8. If you have to drive off the road, you should:
keep one set of wheels on the pavement, if possible.
brake as hard as you can to maintain control.
fully apply the brakes until your speed has dropped to about 20 mph.
9. When you use your mirrors while driving on the road, you should:
check them quickly.
only use the driver's side mirror.
avoid checking them regularly.
10. What is used to warn others of HazMat?
Placards
Security envelopes
Flashing lights
 
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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 Hazmat Test

Number of questions: 30
Correct answers to pass:24
Passing score:80%
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