25 U.S.C. § 564p : US Code - Section 564P: Execution by Secretary of patents, deeds, etc.

Search 25 U.S.C. § 564p : US Code - Section 564P: Execution by Secretary of patents, deeds, etc.

The Secretary shall have authority to execute such patents,
deeds, assignments, releases, certificates, contracts, and other
instruments as may be necessary or appropriate to carry out the
provisions of this subchapter, or to establish a marketable and
recordable title to any property disposed of pursuant to this
subchapter.