Iowa Code § 613.19
A director, officer, employee, member, trustee, or volunteer, of a nonprofit organization is not liable on the debts or obligations of the nonprofit organization and a director, officer, employee, member, trustee, or volunteer is not personally liable for a claim based upon an act or omission of the person performed in the discharge of the person's duties, except for acts or omissions which involve intentional misconduct or knowing violation of the law, or for a transaction from which the person derives an improper personal benefit. For purposes of this section, "nonprofit organization" includes an unincorporated club, association, or other similar entity, however named, if no part of its income or profit is distributed to its members, directors, or officers.
Iowa Code § 613.19
87 Acts, ch 212, §19