Wis. Stat. § 616.14: Limitations applicable to plans under s. 616.06.

(1) Governing body. The governing body of a plan shall be the same as the governing body of the sponsoring organization, but must have at least 3 members. If the governing body of the sponsoring organization consists of fewer than 3 members, the governing body of the sponsoring organization shall appoint to the governing body of the plan the number of persons necessary to comply with this subsection. Appointments under this subsection shall be made under rules adopted by the governing body of the sponsoring organization.

(2) Size. No plan under s. 616.03, 616.06 or 616.08 may operate unless the plan covers a number of students large enough to give stability to its loss experience.