Southern California Council and its chapters have supported the Children's Miracle Network (CMN) since Phi Mu adopted it as a national philanthropy in 1986. Children's Miracle Network is a non-profit organization dedicated to supporting the specialized care provided by children's hospitals across the United States and Canada. These 170 hospitals treat over 17 million children every year, providing the most current available technology and diagnosis, life-saving research, and preventative education for the children and their families. Over 75 corporate sponsors partner with their community CMN hospital each year, and have raised over $3 billion dollars of support since CMN's inception in 1983. In Phi Mu's 25 years as a national-level sponsor, collegiate and alumnae chapters nationwide have raised over $7 million dollars for children's hospitals in their local communities through grassroots efforts. The hospitals served by the Southern CA chapters are Childrens Hospital Los Angeles (CHLA), Children's Hospital of Orange County (CHOC) and Rady Children's Hospital San Diego. The alumnae chapters in those communities volunteer in many ways through fundraising and service.