; classify lands as to their mineral and water resources; give engineering supervision to power permittees and Federal Energy Regulatory Commission licensees; administer the minerals exploration program ( 30 U.S.C. 641 ); conduct inquiries into the economic conditions affecting mining and materials processing industries ( 30 U.S.C. 3 , 21a, and 1603; 50 U.S.C. 98g(a)(1) ) and related purposes as authorized by law; and to publish and disseminate data relative to the foregoing activities; $1,515,452,000, to remain available until September 30, 2025; of which $104,184,000 shall remain available until expended for satellite operations