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- Economic development8
- Flood control4
- Education3
- Coal2
- Coal mines and mining--Safety regulations2
- Employment2
- Food relief2
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- Mineral industries2
- Small business2
- Trade adjustment assistance2
- Unemployment2
- Budget1
- Dams1
- Food stamps--Law and legislation--United States1
- Health1
- Locks (Hydraulic engineering)1
- Lungs--Dust diseases1
- National parks and reserves1
- Reclamation of land--United States1
