25 U.S.C. § 564u : US Code - Section 564U: Valid leases, permits, liens, etc., unaffected

Search 25 U.S.C. § 564u : US Code - Section 564U: Valid leases, permits, liens, etc., unaffected

Nothing in this subchapter shall abrogate any valid lease,
permit, license, right-of-way, lien, or other contract heretofore
approved. Whenever any such instrument places in or reserves to the
Secretary any powers, duties, or other functions with respect to
the property subject thereto, the Secretary may transfer such
functions, in whole or in part, to any Federal agency with the
consent of such agency and may transfer such functions, in whole or
in part to a State agency with the consent of such agency and the
other party or parties to such instrument.