: Basic criteria to be considered for services: - Native Americans and Alaska Natives age 18 and over; - Complete a detailed screening; - Must be able to provide proof of tribal affiliation or lineal descent. Acceptable forms of Tribal documentation are: Tribal ID, Certificate Degree of Indian Blood (CDIB) from the Bureau of Indian Affairs, a letter from Tribe on letterhead verifying enrollment, letter/document of eligibility from a Indian Health Service provider, or documents proving you are a lineal descendent of a documented Native American or Alaska Native including all birth certificates linking the potential participant to the documented family member; - Picture I.D. – State issued Driver’s License or I.D. card, Military I.D., or passport; - And, all legal and medical issues should be sufficiently resolved, so that the participant’s focus will not be taken from treatment. Reasonable accommodations may be made for ongoing legal and medical issues, at the discretion of STC, Inc.