Iowa Code § 321.269: Accident report forms.

1. The department shall prepare and upon request supply to police departments, coroners, sheriffs, and other suitable agencies or individuals, forms for accident reports required hereunder, which reports shall call for sufficiently detailed information to disclose with reference to a traffic accident the cause, condition then existing, and the persons and vehicles involved.

2. Every required accident report shall be made on a form approved by the department if said form is available.