The Secretary of the Interior shall approve no lease pursuant to sections 415 to 415d of this title that contains any provision that will prevent or delay a termination of Federal trust responsibilities with respect to the land during the term of the lease. (Aug. 9, 1955, ch. 615, § 5, 69 Stat. 540 .) CFR Title Parts 25 162 , 163 , 165 30 203 , 1202 , 1203 , 1206 , 1207 , 1212 , 1218 , 1241 , 1243 38 200