(a) An authorized provider employed by or contracting with an SSLC may conduct a DID only for an individual receiving services from that SSLC.(b) At a LIDDA or an SSLC, a person conducting a DID must be:(1) a psychologist licensed to practice in Texas who is employed by or contracting with the LIDDA or SSLC and who has completed:(A) graduate course work in assessing intellectual and adaptive behavior for individuals with an ID or developmental disability; or(B) one year of supervised experience in assessing intellectual and adaptive behavior for individuals with an ID or developmental disability;(2) a physician licensed to practice in Texas who is employed by or contracting with the LIDDA or SSLC and who has completed:(A) one year of employment experience in the field of ID; and(B) an internship or residency that includes specialized training in assessing intellectual and adaptive behavior for individuals with an ID or developmental disability or 12 hours of specialized continuing education in assessing individual intellectual and adaptive behavior; or(3) a certified authorized provider, as described in §304.302 of this subchapter (relating to Certified Authorized Provider).