All religion textbooks are to have the approval of the Unites States Conference of Catholic Bishop's Ad Hoc Committee to Oversee the Use of the Catechism. Other materials and resources used by teachers are to meet the same standards as textbooks with regard to sound doctrine and appropriateness for students.
The content of instruction must conform to the authentic teaching of the Church as summarized in the Catechism of the Catholic Church and must clearly distinguish defined doctrine from personal opinion and theological interpretation. It will stress the relevance of religious truths and principles to the personal lives and daily concerns of the students.
http://handbook.la- archdiocese.org/chapter-4/section-4-3/topic-4-3-13
