Chapter 23 - Fish Restoration and Management
- 2301 - Propagation and distribution of fish.
 - 2302 - Cooperative fish restoration projects.
 - 2303 - Federal cultural stations.
 - 2304 - Fish migration studies.
 - 2305 - Threatened and endangered species.
 - 2306 - Refuge areas.
 - 2307 - Waters limited to specific purposes.