4.8.1 The Dignity of Human Life and Human Sexuality
1. All are bound to observe Catholic doctrine and magisterial teaching on the dignity of human life and human sexuality whenever they provide or arrange for catechesis, ministry, services or counseling in the diocese, its parishes, schools and sponsored agencies. (This includes, illustratively but not exhaustively, the regulation of birth, abortion, sterilization, methods of fertilization detached from the conjugal act of marriage, artificial nutrition and hydration, euthanasia, marriage, ministry to those with same sex attraction, and stem cell therapy.) 
2. They are to utilize only resources that are consistent with approved Catholic teaching, and to collaborate with only those ministries or programs, whether religious or secular, whose philosophy and practice is consistent with that teaching.
 See e.g., Congregation for the Doctrine of the Faith, Instruction Dignitas Personae, On Certain Bioethical Questions (September 8, 2008). This and similar doctrinal documents that pertain to the dignity of human life and sexuality are available at the Vatican website. Various statements of the United States Conference of Catholic Bishops and additional resources are available at the USCCB website.