Chapter 9b. National Fish Hatchery System Enhancement 16 U.S. Code §760aa-1. Gifts to system and particular national fish hatcheries 16 U.S. Code §760aa-2. Volunteer enhancement pilot projects 16 U.S. Code §760aa-3. Community partnership enhancement 16 U.S. Code §760aa-4. Hatchery education program development 16 U.S. Code §760aa. Findings and purposes