Harmful Algal Bloom and Hypoxia Research and Control Amendments Act of 2025

The Harmful Algal Bloom and Hypoxia Research and Control Amendments Act of 2025 would extend and expand federal programs addressing two interconnected water quality problems: harmful algal blooms (excessive algae growth that can be toxic) and hypoxia (areas with dangerously low oxygen levels). These conditions damage fisheries, contaminate drinking water sources, harm recreation, and kill aquatic life in marine, coastal, Great Lakes, and freshwater systems across the country. The bill has passed the Senate and is now being debated in the House of Representatives.

Under this bill, the National Oceanic and Atmospheric Administration (NOAA) would establish a nationwide network of monitoring systems to detect and forecast harmful algal blooms before they occur, and would create an incubator program to develop new technologies and strategies to prevent and control these blooms. The Environmental Protection Agency would similarly expand its monitoring and forecasting capabilities specifically for freshwater systems like lakes, rivers, and reservoirs. An inter-agency task force would be required to develop and update action strategies every five years, with the Department of Energy joining the coordinating effort.

If enacted, these programs would help communities better predict and respond to algal bloom events, potentially protecting drinking water supplies, commercial and recreational fisheries, and public health. The bill would authorize funding through fiscal year 2030, providing sustained support for research into the causes of these problems and development of solutions. Citizens in affected regions would benefit from improved early warning systems and more effective prevention measures, though the bill does not directly regulate industrial or agricultural practices that contribute to these water quality problems.