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IA · Handbook data
Extracted directly from the official DOT handbook. Values left blank aren't explicitly stated in the handbook.
Section 3 (Seat Belts and Child Restraints; Mobile Devices and Texting; OWI); Section 2.27 Move Over Law
The Iowa DOT written knowledge test has 25 questions. You need to answer 20 correctly (80%) to pass and get your IA driver's license or learner's permit.
Our AI-powered practice tests mirror the exact format of the real exam. Every question includes an instant explanation so you understand the why behind each answer — not just memorization.
IA note: At-home testing option available for teens
21歲以上成年人在 Iowa 的法定 BAC 上限為0.08%。持有 CDL 的商用駕駛人上限較低，為0.04%。未滿21歲駕駛人適用零容忍政策，上限為0.02%——任何超過此標準的酒精量都會自動吊銷駕照。
Iowa 使用記點制度，12個月內累積2點會觸發警告信，2年內累積3點可能導致30天駕照吊銷，2年內累積6點則會導致90天吊銷。嚴重違規如酒駕（OWI）會直接加12點並立即吊銷駕照。
Iowa 未滿17歲的中級駕照持有人在第一年必須遵守午夜到早上5點的宵禁（除非是往返工作或學校活動）。Iowa 對青少年駕駛人沒有額外的乘客限制或特定手機使用限制，不過全州適用的手持禁令對所有駕駛人都有效。
The Iowa DOT written test has 25 multiple-choice questions covering traffic laws, road signs, safe driving, and state-specific rules.
You need to answer 20 questions correctly, which is 80%. Our practice tests match this exact format.
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Our questions are based on the official Iowa Driver Handbook, public question banks, and common DMV test patterns. We cross-verify with AI and human review.
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