(a) The Secretary, acting through the Service, shall conduct a study to assess the feasibility of allowing an Indian tribe to purchase, directly or through the Service, managed care coverage for all members of the tribe from— (1) a tribally owned and operated managed care plan; or (2) a State licensed managed care plan. (b) Not later than the date which is 12 months after October 29, 1992 , the Secretary shall transmit to the Congress a report containing— (1) a detailed description of the study conducted pursuant to this section; and (2) a discussion of the findings and conclusions of such study. ( Pub. L. 94–437, title II, § 210 , as added Pub. L. 102–573, title II, § 206(b) , Oct. 29, 1992 , 106 Stat. 4549 .)