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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
对于21岁及以上的成人驾驶员，爱荷华州的法定BAC限值为0.08%。持有商业驾照的驾驶员限值较低，为0.04%。21岁以下驾驶员面临零容忍政策，限值为0.02%——任何超过此限值的酒精量都会导致自动暂停驾照。
爱荷华州使用积分系统，12个月内2分将触发警告信，2年内3分可能导致30天驾照暂停，2年内6分导致90天暂停。严重违规（如OWI）会立即增加12分并导致立即暂停。
爱荷华州17岁以下的临时驾照青少年驾驶员在第一年必须遵守午夜至凌晨5点的宵禁（除非开车上下班或参加学校活动）。除适用于所有驾驶员的州级手持设备禁令外，爱荷华州对青少年驾驶员没有设定乘客上限或特定的手机使用限制。
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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