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Idaho CDL License Test

IDAHO TRUCK DRIVER TRAINING

Commercial Drivers License
2021 CDL License TEST Requirements
Home Study Course
For Tests Beginning December 1, 2021

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DO I HAVE TO PASS ANY EXAMS TO GET A IDAHO CDL?

Yes . . . You will have to pass written exams and skills exams. Just how many exams you will have to take and pass will depend upon the type(s) of commercial vehicles you will be driving and what type of "cargo" you will be transporting.

WHAT ARE THE IDAHO CDL WRITTEN EXAMS?

The "written" exams consist of the knowledge portion of your Idaho CDL exams. There are seven different written exams. Which ones you will be required to take and pass depends upon the type of commercial vehicle that you will be driving. A description of these written exams follows . . .

  • General Knowledge Test . . . Must be taken and passed by ALL CDL applicants no matter what Class of CDL or Type of Endorsement(s) are needed. You WILL take this written test. You WILL pass this written test if you are to obtain a CDL.
  • Air Brakes Test . . . Must be taken and passed if any vehicle you drive has air brakes.
  • Combination Vehicles Test . . . Must be taken and passed if you drive combination vehicles requiring a Class "A" CDL.
  • Passenger Transport (P) Test . . . Must be taken and passed by all bus driver applicants. An additional written test may be required if transporting children to and from school.
  • Hazardous Materials (H) Test . . . Must be taken and passed if you transport hazardous materials requiring "placarding".
  • Tank Vehicles (N) Test . . . Must be taken and passed if you drive a "tank" with a capacity of more than 1000 gallons.
  • Doubles & Triples (T) Test . . . Must be taken and passed if you pull double or triple trailers.
WHAT ARE THE IDAHO CDL SKILLS EXAMS?

The "skills" exams consist of the practical portion of your Idaho CDL exams. They consist of three parts as follows . . .

  • Pre-Trip Vehicle Inspection Test . . . You will be tested to see if you know whether your vehicle is safe to drive. The examiner will score each item that you correctly inspect and explain.
  • Basic Vehicle Control Test . . . You will be tested on your basic skills in controlling the vehicle . . . including moving your vehicle forward, backward, and turning within a defined area. You will be scored on how well you stay within the exercise boundaries and how many pull-ups you make.
  • On-Road Test . . . You will be tested on your skill to safely drive your vehicle in a variety of traffic situations.

The skills exams are taken in the same "type" vehicle that you will be licensed in.

AFTER I PASS ALL OF MY CDL EXAMS . . . THEN WHAT?

You can apply for your CDL. You must provide proof that you possess a valid DOT medical certificate (you will need to get a physical in accordance with MCSR 49 CFR 391.41. . . . the medical forms are included with the CDL Course package), fill out the forms, provide documentation, and pay the appropriate fees.

HOW DO I FIND SPECIFIC INFORMATION FOR Idaho?

We are including the following links to information that is specific to Idaho. We try to include all available official links, however the State of Idaho often change their webpages and/or the addressing of those webpages. We constantly update these links, but from time to time they are not available due to recent changes. If you are having problems with any of these links, try typing "Idaho Official Website" into your Google, Bing or Yahoo search engine and you should be able to find your "starting point" on their website. You should be able to find the Commercial Drivers License information by typing in "CDL" into their internal search (if available) or by following the Drivers License Services links within their website. This is a great source of Idaho regulations, forms, locations, contacts, etc.

Quickly Access Official Idaho CDL Information

Idaho CDL Information
Access to official web pages maintained
by the State of Idaho
Idaho CDL Fees
  • Idaho CDL license (4-year) $40.00
  • Idaho CDL instruction permit $29.00
  • Duplicate Idaho CDL or permit $15.00
  • License upgrade $25.00
  • Endorsement addition (after issuance of a Idaho CDL) $15.00
  • Idaho CDL Written tests (each) $ 3.00
  • Idaho CDL Skills test ($10 to Driver's License Office, $60 to Idaho CDL Skills Tester)$70.00

How to Obtain an Idaho CDL

To apply for a Idaho CDL, you must be at least 18 years old and either have a valid Idaho non-commercial license (Class D) or have passed all tests required to obtain one. You may be able to take your Class D license tests and your CDL tests at the same time. However, you must have one year of driving experience in order to obtain a CDL.

If you want to obtain an Idaho CDL, study Idaho's "Commercial Driver's License Manual" which may be obtained from a county driver's license Office. This manual provides you with the information necessary to pass all Idaho CDL written tests. Information regarding the skills test requirements is also included.

To apply for your Idaho CDL, go to your county driver's license office. Take your current driver's license, Social Security card, proof of Idaho residence and money to pay your fees. Applicants who are not U.S. citizens or U.S. nationals will be required to provide proof of lawful presence in the United States. You will be asked if you are subject to and in compliance with the requirements of Part 391 of the Federal Motor Carrier Safety Regulations (Qualifications of Drivers). You will be asked to declare (self-certify) what type of driving you intend to do: Interstate or Intrastate (within Idaho only) and whether the type of driving you plan to do will require a DOT Medical card or not. When applying for your CDL, your driving record will be checked, fees will be collected, and you are required to pass the vision and knowledge tests.

After passing the written tests, you must make an appointment with an Idaho CDL Skills Tester to take the skills test. A list of Examiners is available at the County DMV and online at www.itd.idaho.gov Some testers have vehicles that you can rent. When you go to the skills tester, you will need to take proof of identification, proof of insurance, and your receipt showing you have passed the written tests and paid the skills test receipt fee.

The Idaho CDL skills test has three parts: the vehicle inspection, the basic control skills test, and the road test. The skills test will take two to three hours to complete and must be taken in a vehicle that is representative of the license class you wish to obtain. If the vehicle used for the test is not equipped with air brakes, your CDL will show a restriction stating that you are not licensed to operate vehicles equipped with air brakes.

After you have passed all required Idaho CDL written and skills tests, you do not have the authority to operate a commercial vehicle until you obtain your Idaho CDL from the County DMV. You will be issued a temporary license from your county driver's license office and your permanent license will be sent to you by US Mail. It is very important your mailing address is current and accurate. If you move after your CDL is issued, you must notify Idaho Transportation Department of your new address.

All test results remain valid for one year. If the appropriate license is not issued within the one-year period, the tests must be re-taken. If you do not pass a test, you must wait three (3) days before retaking the test. Test fees must be paid again.

Idaho CDL tests are not required at renewal time, with the exception of the Hazardous Materials test which must be passed prior to each renewal.

Idaho CDL Instruction Permit

An Idaho CDL instruction permit allows you to practice driving a large commercial vehicle on public roads. This permit is available by taking the appropriate written tests for the type of vehicle you will operate. An instruction permit is valid for up to 180 days. You must be at least 18 years old, hold a valid Idaho Class D driver's license, have at least one year of driving experience to obtain a CDL Instruction Permit. To use the permit, you MUST be accompanied by a driver properly licensed to operate the vehicle you are driving, and this person MUST occupy the seat beside the driver.

Need More Idaho CDL Information?

Contact the Driver Services section of the Idaho Transportation Department at (208) 334-8736 or by e-mail at: driverlicense@itd.idaho.gov

Idaho CDL Written Knowledge Tests
You will need to pass the Idaho Knowledge Tests that are required for the class of license, restriction, and endorsements you wish to possess. A general knowledge test for the Class A or Class B and C license must be successfully completed by all CDL applicants. The information needed to pass these tests is contained in the FREE Idaho CDL Handbook. Please read and study this manual carefully.
  • Class A - 70 Questions (50 GK + 20 Combination Vehicles) - Skills test required.
  • Class B - 50 Questions - Skills test required.
  • Class C - 50 Questions - Skills test required for bus, school bus and air brakes vehicles..
  • Passenger Endorsement - 20 questions - Skills test required in bus.
  • School Bus Endorsement - 25 questions - Skills test required in school bus.
  • Doubles/Triples Endorsement - 20 questions - No additional skills tests.
  • Tank Vehicle Endorsement - 20 questions - No additional skills tests.
  • Hazardous Materials Endorsement - 30 questions - No additional skills tests.
  • Air Brake Restriction Removal - 25 questions - Additional skills test in vehicle with Air Brakes.

Classes of Idaho CDL and Required Tests

CDL Class Tests Required Possible Endorsements and Required Tests
Class A
(Combination
vehicle endorsement required)

General Knowledge Written Exam

Combination Endorsement Written Exam

Road Exam

H - Hazardous Materials Written Exam
N - Tank Vehicles Written Exam
P - Passenger Transport Written and Road Exam
T - Doubles/Triples Written Exam
X - HazMat and Tank Vehicles Written Exam
L - Air Brakes Written and Road Exam
S - School Bus Written and Road Exam
Class B

General Knowledge Written Exam

Road Exam

H - Hazardous Materials Written Exam
N - Tank Vehicles Written Exam
P - Passenger Transport Written and Road Exam
X - HazMat and Tank Vehicles Written Exam
L - Air Brakes Written and Road Exam
S - School Bus Written and Road Exam
Class C

General Knowledge Written Exam

Road Exam

Note: If upgrading to a Class C from a Class D, no road test is required UNLESS the endorsement requires one.
H - Hazardous Materials Written Exam
N - Tank Vehicles Written Exam
P - Passenger Transport Written and Road Exam
X - HazMat and Tank Vehicles Written Exam
L - Air Brakes Written and Road Exam
S - School Bus Written and Road Exam

Idaho CDL Endorsements

Exam Time Allowed (Minutes) # of Questions on Exam # of Correct Answers Needed to Pass
General Knowledge 60 50 40
Air Brakes 25 25 20
HazMat 30 30 24
Tank 20 20 16
Passenger 20 20 16
Doubles/Triples 20 20 16
Combination Vehicles 20 20 16
School Bus 20 20 16

Access Official Federal CDL General Information

WHAT KIND OF QUESTIONS ARE ASKED ON THE CDL WRITTEN EXAMS?

A tiny sampling of questions from each of the written CDL exams follows . . .

GENERAL KNOWLEDGE EXAM (Required for ALL CDL's)

Steering tires must have a tread depth of at least . . .
A. 2/32 inch.
B. 3/32 inch.
C. 4/32 inch.
D. 5/32 inch.

When driving on wet roads, you should reduce your speed by . . .
A. half the distance from the vehicle in front of you.
B. 1/3.
C. 1/2.
D. 2/3.

You're performing your pre-trip inspection for your CDL test. Where should your ignition key be?
A. In the ignition.
B. In your pocket.
C. With your logbook.
D. In the cab.

TRANSPORTING PASSENGERS, (P) ENDORSEMENT

You must stop at least how far from a drawbridge, if there is no traffic light or attendant?
A. 10 feet.
B. 20 feet.
C. 50 feet.
D. 100 feet.

When stopping for railroad tracks, you must stop no closer than 15 feet before the nearest track.
A. True.
B. False.

AIR BRAKES ENDORSEMENT

The air leakage rate for a combination vehicle with the engine off and the brakes applied should be no more than . . .
A. 1 psi in 15 seconds.
B. 3 psi in one minute.
C. 4 psi in one minute.
D. allowed at lower altitudes.

You "put on the brakes" by . . .
A. pushing down on the brake pedal.
B. pushing down on the foot valve.
C. pushing down on the treadle valve.
D. all of the above.

COMBINATION VEHICLES (Req'd by ALL Class A's)

Every combination vehicle with air brakes has two air lines, the service line and the return line.
A. True.
B. False.

How much visible space should be between the upper and lower fifth wheel plates?
A. None.
B. At least 1/4 inch.
C. No more than 1/2 inch.
D. Approximately 1 inch.

DOUBLES AND TRIPLES, (T) ENDORSEMENT

Driving conditions are good. A 100 foot long combination vehicle traveling at 35 MPH would need how much safe following distance?
A. 8/10 of a minute.
B. 10 seconds.
C. 11 seconds.
D. Two vehicle lengths.

Triple trailers are legal in your State of Residence.
A. True.
B. False.

TANK VEHICLES, (N) ENDORSEMENT

Because liquids expand and contract under different temperatures . . .
A. you must be familiar with the difference between bulkheads and baffles.
B. you must know the outage requirements.
C. you must be prepared for possible surge.
D. you must have a HAZ MAT placard in place.

Bulkheads in a tank and baffles in a tank are the same.
A. True.
B. False.

HAZARDOUS MATERIALS, (H) ENDORSEMENT

The driver may keep hazardous materials shipping papers . . .
A. behind the left side HAZ MAT placard.
B. in a pouch on the drivers door or on the driver's seat when out of the vehicle.
C. with the shipper until acceptance at the destination.
D. in a secure place that is locked.

What is the minimum distance from a Class 3 (flammable liquids) or Division 2.1 (gases) placarded cargo tank that you may smoke or carry a lighted cigarette, cigar, or pipe?
A. 10 meters.
B. 25 feet.
C. 100 feet
D. 300 feet.

There is a total of 670 questions on the actual Idaho CDL Course tests, which covers the entire POOL of questions used on the actual CDL examinations. Questions on your ACTUAL TESTS will come from this POOL of questions. Each "CLASS" of CDL and each "ENDORSEMENT" is covered in a separate section. You are required to take only those exams that apply to your driving requirements. The Idaho CDL Course includes complete "self testing" practice tests and "self scoring" BLANK and CORRECT answer sheets.

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