The Biodynamic Craniosacral Therapy Association of North America (BCTA/NA) is a non-profit organization supporting practitioners and schools of the biodynamic model of craniosacral therapy, as developed by Franklyn Sills, in the lineage of William Garner Sutherland, DO, and others. BCTA/NA employs an established curriculum to approve teachers, as well as recognize, register and provide a referral service for Registered Craniosacral Therapists (RCST?s). We also educate the public about the training and practice of Biodynamic Craniosacral Therapy.