No results. Student Members To see a list of our student members, please see our Student Member page. International SOT Directories SOTO Europe SOTO Australasia Certifications Doctors who have advanced training and expertise in SOT and Cranial techniques or methods will have designated titles of: Certified SOT Practitioner (CSP) and Certified SOT Cranial Practitioner (CSCP). Please visit the certification page for more information. Guidelines for chiropractic practice, procedures and re-licensing information, for United States by state click here.