The Archdiocese of Chicago approves Religious Education texts for use in the Catholic schools and the religious education programs in parishes. The texts that are approved are those found in conformity with the Catechism of the Catholic Church by the Bishops' Committee on the Catechism. The updated list can be found at this link on the USCCB website:
http://www.usccb.org/catechism/document/Currentlist.pdf