765 ILCS 835/8
If the cemetery is a privately owned cemetery, as defined in Section 2 of the Cemetery Care Act, or a licensed cemetery authority under the Cemetery Oversight Act, or if the burial lot or grave, vault, tomb, or other such structures are in a privately owned cemetery, as defined in Section 2 of the Cemetery Care Act, or a licensed cemetery authority under the Cemetery Oversight Act, then such company or association shall also comply with the provisions of the Cemetery Care Act or Cemetery Oversight Act, whichever is applicable. Furthermore, no cemetery authority company or other legal entity may deny burial space to any person because of race, creed, marital status, sex, national origin, sexual orientation, or color. A cemetery company or other entity operating any cemetery may designate parts of cemeteries or burial grounds for the specific use of persons whose religious code requires isolation. Religious institution cemeteries may limit burials to members of the religious institution and their families.
765 ILCS 835/8