The funds appropriated and allocated to the Indian Nations pursuant to section
1779c
(c) and (d) of this title, and deposited into trust fund accounts pursuant to subsection (a) of this section, together with any interest earned thereon, may be used for the acquisition of land by the Indian Nations. The Secretary may accept such lands into trust for the beneficiary Indian Nation pursuant to the authority provided in section
465 of this title and in accordance with the Secretary’s trust land acquisition regulations at part 151 of title
25, Code of Federal Regulations, in effect at the time of the acquisition, except for those acquisitions covered by paragraph (1)(B).