Idaho Driver Handbook 2026

How to use the Idaho Driver Handbook

The ITD draws its 40-question knowledge test from the Idaho Driver Handbook, and you need 85% to pass, which is 34 correct answers. Read the 139 pages once for coverage, then answer practice questions to find the rules that did not stick. Practice tells you what you do not know yet; the Driver Handbook is where the rule is actually stated, in the words the state chose.

It is also the only source that settles an argument. When a practice answer and your instinct disagree, the Idaho Driver Handbook decides it, and every explanation we write points back into it.

What is inside the Idaho Driver Handbook

The Idaho Driver Handbook runs to 139 pages. These are the areas it covers that the knowledge test can ask about.

• Traffic signs by shape and color, and what each one requires
• Traffic signals, including arrows, flashing signals and pedestrian signals
• Right-of-way at intersections, roundabouts and uncontrolled crossings
• Speed limits, the basic speed law and adjusting for conditions
• Lane use, passing, merging and following distance
• Turns, signaling and lane positioning
• Parking rules, restrictions and parking on a hill
• Sharing the road with pedestrians, cyclists, motorcycles and trucks
• School buses, emergency vehicles and work zones
• Alcohol, drugs and the state's impaired-driving law
• Seat belts, child restraints and occupant safety
• Licensing steps, required documents and testing
• Crashes, insurance requirements and what to do at the scene

The Idaho knowledge test at a glance

Everything below comes from the ITD directly. It is what the Idaho Driver Handbook is preparing you for.

Questions

40

Passing score

85%

Correct answers needed

34 of 40

Time limit

Time limit not published

Test fee

$25

Minimum age

14½ for instruction permit; 15 for knowledge test

Can you take it online?

No, in person only

Verified against the ITD in 2026-07.