Free 2026 ID DMV Practice Tests
Based on the official Idaho Driver's Handbook. Get ready for your ID ITD written exam with our comprehensive practice tests.
ID CDL General Knowledge
arrow_forward_iosID CDL Air Brakes
arrow_forward_iosID CDL Combination Vehicles
arrow_forward_iosID CDL Hazmat (H)
arrow_forward_iosID CDL Tanker (N)
arrow_forward_iosID CDL Doubles & Triples (T)
arrow_forward_iosID CDL Passenger (P)
arrow_forward_iosID CDL School Bus (S)
arrow_forward_iosPractice by Topic
Commercial Driver's License (CDL)
What to Expect on the Idaho CDL Test
Computer (adaptive). Test stops early once 34 correct answers reached.
No time limit
$5
Knowledge test fee is $5.00; retake requires paying the fee again.Contact your local county driver's license office; some counties require appointments, others accept walk-ins.
Unlimited; after 3 failed attempts in a language offered, a translator may be authorized.
3-day wait between attempts.
Retake fee: $5.
English, Spanish, American Sign Language, Arabic, Chinese, Farsi, French, Korean, Russian, Serbo-Croatian, Swahili, Vietnamese
Documents to Bring to Your Idaho Test
Proof of identity, lawful presence, Social Security number, and Idaho residency; applicants under 17 must show proof of completing an approved driver education course.
Idaho Rules You'll See on the Test
Rules unique to Idaho that appear on the ID ITD knowledge test more than others.
- gavel Slow-moving vehicle emblem required on farm tractors and implements of husbandry
- gavel Dim high beams within 500 ft of oncoming vehicle or 200 ft when following
- gavel Headlights required from sunset to sunrise and when visibility is under 500 ft
- gavel Move Over law for stopped emergency and maintenance vehicles
- gavel Supervised Instruction Permit (SIP) required for drivers under 17
Idaho DMV Test FAQ
How many questions are on the Idaho CDL permit test?
The ID ITD CDL knowledge test has 40 multiple-choice questions drawn from the official state handbook — covering road signs, traffic laws, right-of-way, and safe-driving procedures.
Who actually administers the Idaho driver knowledge test?
The ID ITD administers the test at its authorized offices. Third-party providers may proctor in some locations, but the exam content and scoring are set by ID ITD.
What happens before I actually take the Idaho test at the office?
You'll present your documents, pay applicable fees, pass the vision screening, and (if you're issued a permit that day) get your photo taken. Only then are you handed off to a testing terminal or a paper packet.
How long is my Idaho license valid after I pass?
Standard Idaho licenses are valid for 8 years once issued. See /learn/how-to-renew-license/id for the full renewal timing and REAL ID upgrade path.
Can I use my phone during the Idaho DMV knowledge test?
No. All electronics are prohibited during the exam and most offices ask you to leave them in a locker. Use your phone to drill practice tests before you walk in.
How long does it take to prep for the Idaho knowledge test?
Most first-timers pass after 4-8 hours of focused study spread over a week: one full read of the handbook, then repeated practice tests until you score 90%+ on three attempts in a row.
If I'm under 18, does a parent need to be with me for the Idaho test?
A parent or guardian doesn't sit through the test with you, but under-18 applicants normally need a parent's signature on the application before ID ITD will schedule or administer the exam. Bring the signed form.
Do I need a calculator for the Idaho knowledge test?
No. Any math on the test is basic mental arithmetic — for example, stopping distances or BAC thresholds. Calculators aren't required and typically aren't allowed.
Does the Idaho test include road-sign identification questions?
Yes. A substantial portion of the questions test recognition of standard road signs by shape, color, and meaning. Practicing at /signs alongside our full quizzes is the fastest way to lock these in.
What documents does ID ITD require to take the test?
Proof of identity, lawful presence, Social Security number, and Idaho residency; applicants under 17 must show proof of completing an approved driver education course.