For the purposes of this subchapter—

(1) the term “Bureau funded school” has the meaning given that term in title XI of the Education Amendments of 1978 [25 U.S.C. 2000 et seq.];

(2) the term “Foundation” means the Foundation established by the Secretary pursuant to section 5421 of this title; and

(3) the term “Secretary” means the Secretary of the Interior.