Subject
National parks and reserves Law and legislation
81
Land titles Registration and transfer
80
Historic sites Law and legislation
57
Officials and employees
52
Selection and appointment
46
Appropriations and expenditures
42
Energy policy
37
Real property, Exchange of
23
Wild and scenic rivers Law and legislation
22
Cultural property Protection Law and legislation
19
Wilderness areas Law and legislation
18
Energy conservation Law and legislation
17
Trails Law and legislation
17
Hydroelectric power plants Law and legislation
16
Water resources development Law and legislation
16
Oil and gas leases
15
Public lands
15
Energy development
12
Forest reserves Law and legislation
12
Energy development Law and legislation
11
Memorials Law and legislation
11
Petroleum products Prices
11
Electric power systems Law and legislation
10
Natural areas Law and legislation
10
Renewable energy sources Law and legislation
10
Water resources development Finance Law and legislation
9
Carbon dioxide mitigation Law and legislation
8
Dams Law and legislation
8
Gasoline Prices
8
Historic preservation Law and legislation
8
Homes and haunts
8
National monuments Law and legislation
8
Public contracts
8
Recreation areas Law and legislation
8
United States Foreign relations
8
Water reuse Law and legislation
8
Carbon sequestration Law and legislation
7
Climatic changes
7
Irrigation laws
7
Museums Law and legislation
7
Nuclear power plants Design and construction Law and legislation
7
Petroleum industry and trade
7
Water resources development Research Law and legislation
7
Water-supply
7
Watershed management Law and legislation
7
Federal aid to energy development
6
Federal aid to water resources development
6
Groundwater Research Law and legislation
6
Renewable energy sources
6
Water conservation Law and legislation
6
more ...