75 ILCS 16/30-55.90

The board may join the district and its employees or trustees as a member or members of the Illinois Library Association and the American Library Association or any nonprofit, nonpolitical, Section 501(c)(3) associations, as designated by the federal Internal Revenue Service, having the purpose of improving library development and librarianship. The board may provide for the payment of membership dues, fees, and assessments to the associations.