# Plain Language Summary: Harmful Algal Bloom and Hypoxia Research and Control Amendments Act of 2025

This bill is about tackling two serious water pollution problems: harmful algal blooms and dead zones in our waterways. Harmful algal blooms are when algae grow out of control in lakes, rivers, and coastal areas, turning the water green or red and releasing toxins that can poison people and animals. Dead zones (hypoxia) happen when water doesn't have enough oxygen to support fish and other aquatic life, essentially creating underwater deserts. Both problems are getting worse in many parts of the country, particularly in areas with agricultural runoff and urban pollution.

The bill directs federal agencies—mainly NOAA (the National Oceanic and Atmospheric Administration) and the EPA—to expand their research efforts to better understand what causes these blooms and dead zones, and to develop better ways to prevent and control them. It also increases funding and coordination between different government agencies and universities to study these problems more effectively. The legislation aims to improve monitoring systems so we can detect these problems earlier and respond faster when they occur.

Who this affects: Coastal communities, fishing industries, and people who rely on lakes and rivers for drinking water, recreation, or their livelihoods will benefit from better prevention and control of these water quality problems. Farmers and industries that contribute to the pollution may face new regulations based on what the research discovers. Taxpayers will fund the expanded research programs, though the costs are relatively modest compared to the economic damage these blooms and dead zones cause—they destroy fisheries, close beaches, and contaminate water supplies.

In practical terms, this bill is an investment in understanding and fixing water pollution problems that already cost the U.S. economy billions of dollars annually in lost fishing revenue, tourism, and water treatment expenses.

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

Sullivan, Dan

Harmful Algal Bloom and Hypoxia Research and Control Amendments Act of 2025This bill extends through FY2030 and modifies the Harmful Algal Bloom and&nbsp;Hypoxia Research and Control Act to address algal blooms and hypoxia (deficiency of oxygen) in U.S. marine, estuarine, and freshwater systems. Harmful algal blooms are high concentrations of algae that may create nuisance or toxic conditions that are harmful to humans, animals, aquatic ecosystems, and the economy.The bill directs the Inter-Agency Task Force on Harmful Algal Blooms and Hypoxia to submit to Congress an action strategy for harmful algal blooms at least once every five years. The bill also expands the task force's membership&nbsp;to include the Department of Energy.The bill also expands the duties of the National Oceanic and Atmospheric Administration (NOAA) under the National Harmful Algal Bloom and Hypoxia program. NOAA must also carry out a variety of activities related to monitoring, predicting, preventing, mitigating, and responding to marine, coastal, and Great Lakes harmful algal bloom and hypoxia events. For example, NOAA must establish&nbsp;(1) a national network of observing systems for monitoring, detecting, and forecasting harmful algal blooms; and (2) a national-level incubator program to increase the number of strategies, technologies, and measures available to prevent, mitigate, and control harmful algal blooms.Additionally, the Environmental Protection Agency must develop and enhance operational freshwater harmful algal bloom monitoring, observing, and forecasting programs in lakes, rivers, and reservoirs and carry out other activities related to researching freshwater harmful algal blooms and hypoxia events.