; and (3) is not otherwise eligible for health services provided by the Service, shall be eligible for all health services provided by the Service on the same basis and subject to the same rules that apply to eligible Indians until such individual attains 19 years of age. The existing and potential health needs of all such individuals shall be taken into consideration by the Service in determining the need for, or the allocation of, the health resources of the Service. If such an individual has been determined to be legally incompetent prior to attaining 19 years of age, such individual shall remain eligible for such services until 1 year after the date of a determination of competency. (b) Spouses Any spouse of an eligible Indian who is not an Indian, or who is of Indian descent but is not otherwise eligible for the health services provided by the Service, shall be eligible for such health services if all such spouses or spouses who are married to members of each Indian tribe being served are made eligible, as a class, by an appropriate resolution of the governing body of the Indian tribe or tribal organization providing such services. The health needs of persons made eligible under this paragraph shall not be taken into consideration by the Service in determining the need for, or allocation of, its health resources. (c) Health facilities providing health services (1) In general The Secretary is authorized to provide health services under this subsection through health facilities operated directly by the Service to individuals who reside within the Service unit and who are not otherwise eligible for such health services if— (A) the Indian tribes served by such Service unit requests such provision of health services to such individuals, and (B) the Secretary and the served Indian tribes have jointly determined that the provision of such health services will not result in a denial or diminution of health services to eligible Indians. (2) ISDEAA programs In the case of health facilities operated under a contract or