| 661. | Short title; authorization. | |
| 662. | Impounding, diverting, or controlling of waters. | |
| 663. | Impoundment or diversion of waters. | |
| 664. | Administration; rules and regulations; availability of lands to State agencies. | |
| 665. | Investigations as to effect of sewage, industrial wastes; reports. | |
| 665a. | Maintenance of adequate water levels in upper Mississippi River. | |
| 666. | Authorization of appropriations. | |
| 666a. | Penalties. | |
| 666b. | Definitions. | |
| 666c. | Applicability to Tennessee Valley Authority. | |
| 666c–1. | Protection of water, oceans, coasts, and wildlife from invasive species. | |
| 666d. | Skagit National Wildlife Refuge; exchange of lands. | |
| 666e. | Administration of acquired lands. | |
| 666f. | Wildlife conservation and agricultural, industrial, recreational, and related uses for certain Federal lands; transfer of lands to Secretary of the Interior; administration, development, and disposition. | |
| 666g. | Classification of lands; industrial leases; moneys subject to section 715s of this title ; administration; jurisdiction of Federal agencies. | |
| 667. | Game management supply depots; appropriations. | |
| 667a. | Omitted. | |
| 667b. | Transfer of certain real property for wildlife conservation purposes; reservation of rights. | |
| 667c. | Publication of designating order. | |
| 667d. | Reports to Congress. | |
| 667e. | Repealed. | |
| 667f. | Availability of grain to prevent waterfowl depredations; payment of packaging, transporting, handling, and other charges. | |
| 667f–1. | Requisition of grain to prevent crop depredation by migratory waterfowl. | |
| 667f–2. | Reimbursement of packaging and transporting expenses. | |
| 667f–3. | Authorization of appropriations for mitigating losses caused by waterfowl depredation. | |
| 667g. | Requisition of surplus grain; prevention of starvation of resident game birds and other resident wildlife; utilization by State agencies; reimbursement for packaging and transporting. | |
| 667g–1. | Requisition and use of grain for prevention of starvation of migratory birds; reimbursement for packaging and transporting. | |
| 667g–2. | Authorization of appropriations for reimbursement of Commodity Credit Corporation. | |
| 667h. | Chronic Wasting Disease Task Force. | |
| 667i. | Chronic wasting disease research and management program. | |
| 668. | Bald and golden eagles. | |
| 668a. | Taking and using of the bald and golden eagle for scientific, exhibition, and religious purposes. | |
| 668b. | Enforcement provisions. | |
| 668c. | Definitions. | |
| 668d. | Availability of appropriations for Migratory Bird Treaty Act. | |
| 668aa to 668cc–6. | Repealed. | |
| 668dd. | National Wildlife Refuge System. | |
| 668ee. | Definitions. | |
| 668ff to 668ss. | Omitted. | |