Any credit union, the membership of which consists primarily of employees of this State or of any county, city, village, incorporated town or school district, or of any department, agency or instrumentality of the State and their families, may, upon application to the appropriate officer or agency, be allotted such space as is available in any public building, for the purpose of providing an office and meeting place for the credit union without charge for rent or services.
205 ILCS 305/67