The ESTUARIES Act of 2025 is designed to ensure the continued operation and effectiveness of the National Estuary Program . This program, established under the Federal Water Pollution Control Act, plays a crucial role in the protection and restoration of estuaries across the United States. The bill achieves its objective by amending a specific section of the Act, thereby reauthorizing the program. This amendment extends the program's authorization period, changing the current expiration date from 2026 to 2031 , providing an additional five years of funding and support for estuarine health initiatives.