The Idaho permit test format consists of 40 multiple-choice questions covering road signs, traffic laws, and safe driving practices.
The Idaho DMV uses a computerized system. Questions are randomized from a large pool based on the Idaho Driver's Manual.
For example, one applicant in Boise might see a different set of 40 questions than another applicant in Coeur d'Alene on the same day, though all cover the same core topics.
The Class D knowledge test is presented as a computerized multiple-choice exam. You answer 40 questions and may miss up to six before failing.
ITD's public testing guidance does not describe the live system's skip or review controls. Use only the options shown on your test screen and ask the examiner if the interface is unclear.
Can I change an answer before submitting it? ITD does not publish a statewide rule describing answer-edit controls on the live testing screen. Follow the on-screen options; do not assume every question can be reopened after you move on.
No fixed 40-question set is published for applicants. Prepare from the full Idaho Driver's Handbook rather than memorizing one practice quiz or expecting the same questions another applicant saw.
The 40 questions on the permit exam are distributed across key topics.
| Topic Category | Approximate Count |
|---|---|
| Traffic Signs & Signals | 10-12 questions |
| Idaho Traffic Laws | 10-12 questions |
| Safe Driving Practices | 8-10 questions |
| Drugs, Alcohol & Penalties | 4-6 questions |
| Equipment & Inspection | 2-4 questions |
Another example: A common failure point is not knowing Idaho's specific school bus stopping law, which frequently appears in the Traffic Laws section.
Are road signs and traffic laws mixed together or tested in separate sections? Treat it as one Class D knowledge test. ITD publishes the subjects covered and one overall passing standard, not separate pass/fail sections for signs and traffic laws.
Idaho does not publish a statewide countdown time for the Class D knowledge test. Local office testing cutoffs can limit how late you can start, so check your county office before going. Detailed cutoff information belongs on the DMV hours page.
| Applicant | When the knowledge test is used |
|---|---|
| Under 17 | Complete approved driver training and the six-month/50-hour supervised GDL period first. The knowledge and skills tests are then required before licensing. |
| Age 17+ | Pass the knowledge test to receive a Class D Instruction Permit for supervised practice. |
Language options: Idaho currently offers the Class D knowledge test in English, Arabic, Chinese, Farsi, French, Korean, Russian, Serbo-Croatian, Spanish, Swahili, Vietnamese, and American Sign Language (ASL).
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