the Education Amendments of 1978 ( 25 U.S.C. 2000 et seq. ). . 4. Charter schools authorized (a) In general The Bureau of Indian Education is authorized to approve and fund a Bureau-Funded Charter School at any school operated or funded by the Bureau of Indian Education. (b) Use of bureau facilities Tribes are authorized to use existing Bureau of Indian Education facilities for the operation, management, and expansion of grades in Bureau-funded charter schools, as defined in section 4(d)(1). (c) Use of funds Funds dispersed to tribes under this section may be used for subcontracts with a tribal organization or developer to manage or operate Bureau-funded charter schools. (d) Definitions In this section: (1) Bureau-funded charter school The term Bureau-Funded Charter School means a school that— (A) is approved by the Tribal government where the school operates and is approved and funded by the Bureau of Indian Education