; or (ii) receive services from a facility operated by the Indian Health Services; and (B) Tribal organizations (as the term tribal organization is defined in section 4 of the Indian Self-Determination and Education Assistance Act ( 25 U.S.C. 5304 )) and Urban Indian organizations (as defined in section 4 of the Indian Health Care Improvement Act ( 25 U.S.C. 1603 )). (e) Authorization of appropriations There are authorized to be appropriated such sums as may be necessary to carry out this section, to be derived exclusively from unobligated amounts in the Public Health and Social Emergency Fund.