Iowa Code § 501B.16: Approval by members.

1. Except as otherwise provided in the governing principles, an unincorporated nonprofit association must have the approval of its members to do any of the following:

a. Admit, suspend, dismiss, or expel a member.

b. Select or dismiss a manager.

c. Adopt, amend, or repeal the governing principles.

d. Sell, lease, exchange, or otherwise dispose of all, or substantially all, of the association’s property, with or without the association’s goodwill, outside the ordinary course of its activities.

e. Dissolve under section 501B.28 or merge under section 501B.30.

f. Undertake any other act outside the ordinary course of the association’s activities.

g. Determine the policy and purposes of the association.

2. An unincorporated nonprofit association must have the approval of the members to do any other act or exercise a right that the governing principles require to be approved by members.