License or commercial driver’s license. This can be a parent, legal guardian, or an immediate family member who’s at least 21 years old. Pin On West Virginia The responsible adult must be your parent, guardian, or an immediate family member at least 21 years of age, a driver education instructor, or a person at least 25 years with written permission from your parent or guardian. Iowa driver's permit rules . The permit test covers all the traffic laws in iowa as well as safe driving strategies. Hold an instruction permit and a clean driving record for at least six consecutive months immediately before applying for your minor school license. Drivers under the age 18 are not eligible for the temporary restricted driver license. In iowa, you can get your unrestricted iowa driver's license if you're at least 17 years old and you: Once you receive a valid learners permit, you will then need to pass a road skills test and vision test to receive an ia drivers. The in...