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Iowa Department of Transportation

Iowa permit test three ways to take it

Iowa lets you take the instruction permit knowledge test at a DMV or county treasurer, at home with a parent watching, or at a participating school. You can get a permit at 14, among the youngest in the country. Below are the three routes, what the permit lets you do, and a 25-question Iowa DOT practice test.

Last reviewed October 30, 2026 · Iowa Driver's License Manual, July 2026 PDF

Pick your testing route

DMV / County TreasurerAt homeAt school (“Skip the Trip”)
BookingAppointmentOnline request; approval in 7–14 daysThrough a participating school
ProctorStaffParent or guardianSchool
DeviceProvidedComputer only, no phone or tablet. The link expires in 72 h.Provided
ThenEvery route ends at a DMV or treasurer office for documents, consent, vision screening and the permit itself.

Source: Iowa DOT under-18 instruction permit page.

What to bring

Primary ID, proof of Iowa residency, proof of Social Security number, and medical or vision information if it applies to you. If you're under 18, bring form 430018 signed by a parent or guardian. Vision screening is part of the visit.

What we couldn't verify

The Iowa manual and permit pages don't state the real test's question count, pass score, fee, retake wait or languages. A search summary says the official online practice test is 25 questions with an 80% pass mark. We use that as a target, not as the official rule. The manual says more translations are on iowadot.gov.

Life on a permit

Your supervisor must be licensed and one of these: a parent, guardian or custodian; an immediate family member 21+; a driver ed instructor; or someone 25+ with written parental permission. No electronic devices except permanently installed ones, and no more passengers than seat belts.

Violations are costly. The first brings a warning letter and possibly a suspension. The second brings a 30-day suspension. Each violation pushes your next stage back six months.

To the intermediate license

  • Age 16
  • Iowa-approved driver education completed
  • Permit held 12 months, with the last six months clean
  • Parental consent

You can then drive alone from 5 a.m. to 12:30 a.m. Waiver form 431170 covers school or work trips outside those hours. For the first six months, if your license shows the restriction, you may carry only one unrelated minor passenger when unsupervised. Any supervised-hours requirement isn't shown on the pages we opened. Check the intermediate license page.

Unposted speed limits

Chapter 4 lists these. Several are easy to mix up:

  • Business district: 20 mph. Residential or school district: 25 mph.
  • Suburban district: 45 mph. Towing a trailer: 45 mph.
  • Unsurfaced secondary roads at night: 50 mph.
  • Primary roads and urban interstates: 60 mph.
  • Rural interstate: 70 mph. Interstate minimum: 40 mph.

Rules to remember

  • School buses: stop no closer than 15 feet behind a bus. If an oncoming bus shows amber lights on a two-lane road, slow to 20 mph or less. On roads with four or more lanes, only traffic behind the bus must stop. A violation can cost up to 180 days of your license.
  • Move Over or Slow Down covers emergency, tow, maintenance, construction and waste vehicles with flashing lights, plus any vehicle with its hazards on. The penalty is a suspension of up to a year.
  • Steer It, Clear It: move a drivable car out of traffic after a minor crash. Each minute a lane is blocked raises the risk of a secondary crash about 2.8%.
  • Report a crash within 72 hours if anyone is hurt or killed, or damage is over $1,500.
  • Alcohol: .08 or any controlled substance counts as OWI. Under 21, a BAC of .02 means at least 60 days' revocation. Open containers go in the trunk.
  • Fluorescent pink signs mark incident management zones.

Iowa DOT practice test

25 questions from the July 2026 manual, scored against an 80% target.

Free quiz · no sign-up

Iowa DOT permit practice test

Questions
25
To pass
80%
About
17 min

Instant feedback and an explanation after every answer.

Preview the 25 free questions
  1. What is the minimum age for an Iowa instruction permit?

    • 14
    • 15
    • 15½
    • 16
  2. Which form gives the parental consent for an under-18 permit?

    • 430018
    • 431170
    • DL-1
    • 54706
  3. Which of these may supervise an Iowa permit driver?

    • Any 18-year-old
    • An immediate family member 21+
    • A 19-year-old friend
    • A 16-year-old sibling
  4. A supervisor from outside the family, with parental permission, must be at least:

    • 18
    • 21
    • 25
    • 30
  5. How long must you hold the permit before an intermediate license?

    • 6 months
    • 9 months
    • 12 months
    • 18 months
  6. What is the minimum age for an intermediate license?

    • 15
    • 16
    • 16½
    • 17
  7. Unsupervised intermediate driving is allowed until:

    • 11 p.m.
    • Midnight
    • 12:30 a.m.
    • 1 a.m.
  8. How long a clean driving record do you need before the intermediate license?

    • 3 months
    • 6 months
    • 9 months
    • 12 months
  9. What happens after a second permit violation?

    • A warning letter
    • A 30-day suspension
    • A 90-day suspension
    • Revocation
  10. Taking the knowledge test at home requires:

    • A phone
    • A tablet
    • A parent proctor and a computer
    • No supervision
  11. What is the unposted limit in a business district?

    • 20 mph
    • 25 mph
    • 30 mph
    • 35 mph
  12. What is the unposted limit in a residential or school district?

    • 20 mph
    • 25 mph
    • 30 mph
    • 35 mph
  13. What is the rural interstate limit?

    • 60 mph
    • 65 mph
    • 70 mph
    • 75 mph
  14. What is the interstate minimum speed?

    • 30 mph
    • 40 mph
    • 45 mph
    • 50 mph
  15. What is the unposted limit in a suburban district?

    • 35 mph
    • 40 mph
    • 45 mph
    • 55 mph
  16. At what BAC is a driver under 21 revoked?

    • .00
    • .02
    • .05
    • .08
  17. What is the minimum revocation for an under-21 driver with a BAC from .02 to under .08?

    • 30 days
    • 60 days
    • 90 days
    • 180 days
  18. How close may you stop behind a school bus?

    • 10 feet
    • 15 feet
    • 20 feet
    • 30 feet
  19. You meet a school bus showing amber lights on a two-lane road. Slow to no more than:

    • 10 mph
    • 15 mph
    • 20 mph
    • 25 mph
  20. A school bus violation can suspend your license for up to:

    • 30 days
    • 90 days
    • 180 days
    • 2 years
  21. Iowa's Move Over law also covers ordinary vehicles showing:

    • Headlights
    • Hazard lights
    • Turn signals
    • Fog lights
  22. A Move Over violation can bring a suspension of up to:

    • 30 days
    • 90 days
    • 6 months
    • 1 year
  23. You must report a crash when property damage exceeds:

    • $500
    • $1,000
    • $1,500
    • $2,500
  24. Where may an open alcohol container be carried?

    • In the glove box
    • In the trunk
    • Under the seat
    • Nowhere
  25. Under Iowa's hands-free law you may NOT:

    • Use voice commands
    • Hold your phone
    • Use a mounted GPS
    • Listen to the radio

Nearby: Minnesota, Wisconsin, Illinois, Missouri, Nebraska, South Dakota.

Iowa permit test FAQ

Can I take the Iowa permit test at home?

Yes. With a parent as proctor, on a computer (not a phone or tablet). Approval takes 7–14 days, and the test link expires 72 hours after it's sent.

How many questions are on the Iowa permit test?

The official pages and manual we opened don't say. Iowa DOT's online practice test is reportedly 25 questions with an 80% pass mark, but we couldn't confirm that the real test matches.

How old do you have to be for an Iowa instruction permit?

14, with parental consent on form 430018.

Who can supervise an Iowa permit driver?

A parent, guardian or custodian; an immediate family member 21+; a driver ed instructor; or someone 25+ with written parental permission.

When can I get an intermediate license?

At 16, after Iowa-approved driver ed, 12 months with the permit, and six months with no violations.

Can a permit driver use a phone in Iowa?

No electronic devices are allowed except permanently installed equipment. The hands-free law also bars every driver from holding a phone.

Sources: Iowa Driver's License Manual (PDF), instruction permit page, intermediate license page. Not affiliated with Iowa DOT.