CDL Practice Tests — Idaho
Free practice tests for the Idaho CDL exam, written from the Idaho Transportation Department handbook and federal standards.
Official handbook: Idaho Transportation DepartmentChoose a practice test
General Knowledge
50-question practice · 50-question mock exam · 80% to pass
IdahoAir Brakes
25-question practice · 25-question mock exam · 80% to pass
IdahoCombination Vehicles
20-question practice · 20-question mock exam · 80% to pass
IdahoHazardous Materials
30-question practice · 30-question mock exam · 80% to pass
IdahoTanker
20-question practice · 20-question mock exam · 80% to pass
IdahoDoubles and Triples
20-question practice · 20-question mock exam · 80% to pass
IdahoPassenger Transport
20-question practice · 20-question mock exam · 80% to pass
IdahoSchool Bus
20-question practice · 20-question mock exam · 80% to pass
Step-by-stepIdaho CDL Licensing Guide
How to get licensed in Idaho, step by step.
About the Idaho CDL exam
The Idaho CDL exam is administered by the Idaho Transportation Department. Like every state, Idaho adopts the federal standards as a baseline and adds state-specific requirements, fees, and procedures.
- Exam / licence fee: approximately $30.
- Skills testing: Idaho DMV regional offices.
- Idaho has one of the lower CDL fee structures in the nation and offers a 4-year license validity period for CDL holders.
To get started, read the official Idaho handbook (linked above), practice with the tests on this page until you consistently score above 80%, and then schedule your exam with the Idaho Transportation Department.
What's in the Idaho exam: Practice tests for the Commercial Driver's License written exam. Questions reflect the Federal Motor Carrier Safety Administration (FMCSA) Commercial Driver's License Manual that all states adopt as the basis for their CDL exams.
Recommended study materials
CDL Study Guide (Trivium)
Complete prep for all CDL written tests: general knowledge, air brakes, combination vehicles, hazmat, and all endorsements. Includes full-length practice tests.
Check Price → Study guideCDL Practice Tests & Flashcards (Accepted Inc.)
600+ practice questions covering every FMCSA knowledge area, plus 400 flashcards for endorsement prep.
Check Price → Study guideMaster the CDL Truck Driver's License (Arco)
Arco's classic CDL prep with in-depth FMCSA manual coverage, endorsement chapters, and scored practice exams.
Check Price →As an Amazon Associate, CJ Affiliate, and AWIN publisher we earn from qualifying purchases. Links above are affiliate links. Full disclosure →
Practice test FAQs
How do I get a CDL license in Idaho?
In general you must meet the eligibility requirements, complete any required education or training, and pass the required knowledge test (and, where applicable, a skills test) administered through the Idaho Transportation Department. The exact steps, fees, and documents are set by Idaho and are covered in the guide above.
Is the CDL exam different in Idaho?
The core knowledge tested is similar across states, but Idaho sets its own specific rules, procedures, passing requirements, and any state-law content. That is why it is important to study materials specific to Idaho, which our CDL practice tests are written to reflect.
Are these Idaho practice tests free?
Yes. All of our Idaho CDL practice questions are completely free, with no sign-up or payment required, and every question includes a full explanation. You can start practicing immediately on desktop or mobile.
How should I prepare for the CDL exam in Idaho?
Study the official CDL materials from the Idaho Transportation Department, focus on the most heavily tested topics, and take practice tests until you consistently score above the passing threshold. You can start with the Idaho CDL practice tests for this state.
Where can I learn more about the CDL exam format and scoring?
Our CDL exam guide explains the test format, scoring, what is covered, and study strategies that apply in every state, including Idaho.