Last day of grace period registration or change of address in the office of the election authority or at a location designated for this purpose by the election authority. (10 ILCS 5/4-50, 5-50, 6-100)

Last day of grace period voting at the election authority’s office, or location designated by the election authority, or by mail, at the discretion of the election authority. (10 ILCS 5/4-50, 5-50, 6-100)