Oak Lawn-Hometown School District 123 is part of the A.E.R.O. Cooperative. A.E.R.O. is a Special Education Cooperative composed of twelve member school districts. It is A.E.R.O.'s mission to assist member districts to provide comprehensive special education programs and related services to children with disabilities. These services are provided to children in both public and private schools throughout portions of Stickney, Worth and Lyons Townships.

A.E.R.O. , a legal entity under Section 10-22.31 of the School Code of Illinois, is governed by a Governing Board comprised of one (1) board of education member from each of the twelve (12) districts in the A.E.R.O. Cooperative.