In Iowa what is required for an unsupervised person 12 years of age or older but younger than 18 years of age to legally operate a boat with a motor of more than 10 horsepower?

In Iowa, a person aged 12 to 17 must complete a boating safety course approved by the Iowa Department of Natural Resources to legally operate a boat with a motor exceeding 10 horsepower without adult supervision. Additionally, they must carry a valid certificate of completion while operating the vessel. It's important to note that those under 12 years old cannot operate such boats, even with supervision.