United States Catholic Conference of Bishops - http://www.usccb.org/
Co-Workers in the Vineyard of the Lord, USCCB document on lay ecclesial ministry - http://www.usccb.org/upload/co-workers-vineyard-lay-ecclesial-ministry-2005.pdf
Documents of the Second Vatican Council -http://www.vatican.va/archive/hist_councils/ii_vatican_council/index.htm
Christifideles Laici, Lay Members of Christ’s Faithful People, by Pope Saint John Paul II - http://w2.vatican.va/content/john-paul-ii/en/apost_exhortations/documents/hf_jp-ii_exh_30121988_christifideles-laici.html
Apostolicam Actuositatem, The Apostolate of the Laity, by Pope Paul VI - http://www.vatican.va/archive/hist_councils/ii_vatican_council/documents/vat-ii_decree_19651118_apostolicam-actuositatem_en.html
National Certification Standards for Lay Ecclesial Ministers, USCCBhttp://www.lemcertification.org/docs/ACLEM_Final_Standards_20111115.pdf