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Idaho Passenger Test

We'll help you prepare for Idaho's mountainous roads and changeable weather — pass your test on your first try.

Questions

80%

To Pass

Minutes

60 questions · 25 min time limit · 80% to pass

Opens in a practice window — choose your mode inside.

Reviewed by Jack Mahana, CDL Instructor (13+ years)

Last verified: August 2026

All questions sourced from the official Idaho CDL handbook and FMCSA regulations.

About the Idaho Passenger Test

Idaho's passenger endorsement lets you drive a school bus, tour bus, or any vehicle designed to carry 16 or more people. But before you get that endorsement, you have to pass the Idaho DMV's passenger test. We built this practice test to help you study the exact topics you'll see on the real exam.

Idaho roads aren't easy. You'll deal with mountain passes like Lookout Pass and Galena Summit, plus icy conditions in the winter. That means you need to know how to load passengers safely and handle emergency situations on steep, winding highways. Our questions reflect those real-world challenges.

The state also has a strong agriculture industry — think potato trucks and farm-to-market routes. Your passengers depend on your ability to drive safely through rural areas and around slow-moving farm equipment. Don't let a question about railroad crossings or student loading catch you off guard.

Every question on this practice test is based on the official Idaho CDL manual. Use it to find your weak spots before you pay for the real test.

Topics Covered

✓Pre-trip inspection for passenger vehicles — Idaho winters mean you can't skip brake checks and tire condition.

✓Loading and unloading passengers — you need to handle steep bus stops on sloped roads in places like Boise's North End.

✓Safe driving practices for mountain passes — reduce speed and use low gears on grades like White Bird Hill.

✓Emergency procedures and evacuations — Idaho's remote stretches mean help may be far away.

✓Student transportation rules — Idaho school bus drivers must know specific loading zone laws near potato fields.

✓Railroad crossings and highway intersections — common on Idaho's rural routes with limited visibility.

Study Tips

Study the Idaho CDL manual's passenger endorsement section. Focus on the pre-trip inspection checklist — your test examiner will watch you perform it. Bring a copy of the manual's inspection form to practice at home.

Use our practice test in 'study mode' first. Read every explanation, even for questions you get right. Then switch to 'test mode' to build your speed. You need 80% to pass, but aim for 90% before you schedule the real exam.

Don't forget the weather. Idaho has sudden snowstorms and icy patches from October through March. Know how to adjust your driving for passenger comfort and safety. The test will ask about braking and turning on slick roads.

Idaho Specific Information

You take the passenger endorsement test at any Idaho DMV office that offers CDL services. Major locations include Boise, Idaho Falls, Coeur d'Alene, and Twin Falls. Check the Idaho DMV website for the nearest office and their hours. Most require an appointment — walk-ins are limited and may not be available.

The test fee for adding a passenger endorsement is $15. You'll also pay a $5 knowledge test fee if this is your first CDL or if you're retesting. Bring your current CDL, proof of Idaho residency, and a medical examiner's certificate if required. No appointment? You might wait an hour or more.

Idaho uses third-party testers in some areas, especially for the skills test. But the passenger knowledge test stays at the DMV. Schedule online or by phone. Plan ahead — DMV offices near ski resorts get busy in winter.

Frequently Asked Questions

How many questions are on the Idaho CDL passenger test?

The Idaho passenger endorsement knowledge test has 20 questions. You need at least 16 correct (80%) to pass.

Can I take the passenger test in Spanish?

Yes. Idaho offers CDL knowledge tests in Spanish and other languages. Ask your local DMV office about availability.

What happens if I fail the passenger test?

You can retake it the next business day. You'll pay another $5 test fee each time you try.

Do I need a CDL to take the passenger endorsement test?

You need a valid Idaho CDL first. The passenger endorsement is an add-on. You can't take it alone without a CDL.

What if I move to Idaho with a passenger endorsement from another state?

You must transfer your CDL to Idaho within 30 days. Idaho honors out-of-state endorsements as long as you show proof. You may need to retake the knowledge test if your medical certificate or endorsement type doesn't match Idaho's rules.

Reviewed by Jack Mahana, CDL Instructor (13+ years)

Last verified: August 2026 · FMCSA-compliant content