; (B) provide counseling to patients on the benefits and risks of all forms of Federally-approved medication-assisted treatments; and (C) maintain an affiliation with a provider that can prescribe or otherwise dispense all other forms of Federally-approved medication-assisted treatment. (c) GAO study Not later than 1 year after the date of enactment of this title, the Comptroller General of the United States shall submit to Congress a comprehensive report describing any relationship between substance use rates, pain management practices of the Indian Health Service, and patient request denials through the purchased/referred care program of the Indian Health Service. 3434. Standards for substance use disorder treatment and recovery facilities (a) In general Not later than 3 years after the date of enactment of this title, the Secretary, in consultation with the American Society of Addiction Medicine, shall promulgate model standards for the regulation of substance use disorder treatment services. (b) Contents The model standards promulgated under subsection (a) shall— (1) identify the types of providers intended to be covered without regard to whether such providers participate in any Federal health care program (as defined in section 1128B(f) of the Social Security Act (42 U.S.C. 1320a–7b(f))) and shall not include a private practitioner who is already licensed by a State medical licensing board and whose practice is limited to outpatient care; (2) require that all substance use disorder treatment services be licensed by the respective States for the levels of care which they provide; (3) identify the professional credentials needed by each type of substance use disorder treatment professional; (4) require that patients have access to licensed substance use disorder treatment services, including health care providers and physicians, for inpatient and outpatient care