Community Action to Fight Asthma (CAFA) is a network of asthma coalitions from across California, reaching the rural areas of the Central Valley, the urban areas of Southern California and San Francisco, and many areas in between. CAFA works to shape local, regional, and state policies to reduce environmental triggers of asthma for school-aged children where they live, learn, and play. The Network brings together diverse constituents, nurturing a bridge between public health organizations and environmental health and justice groups, creating a more powerful voice for change. CAFA also builds the capacity of local groups to advocate for policy improvements.