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

Introduced Jan 14, 2025Latest action Sep 11, 2025Environmental Protection

Plain-English summary

Harmful Algal Bloom and Hypoxia Research and Control Amendments Act of 2025 This bill extends through FY2030 and modifies the Harmful Algal Bloom and 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.

Deterministically condensed from the official CRS summary; verify details in the official record.

People and recorded decisions

Sponsors, Cosponsors & House Votes

Susan M. Collins

Cosponsor · Republican · ME

Tammy Baldwin

Cosponsor · Democratic · WI

John Neely Kennedy

Cosponsor · Republican · LA

Jeffrey Alan Merkley

Cosponsor · Democratic · OR

Roger Sen. Wicker

Cosponsor · Republican · MS

Lisa Murkowski

Cosponsor · Republican · AK

Alex Padilla

Cosponsor · Democratic · CA

William M. Cassidy

Cosponsor · Republican · LA

Bernie Moreno

Cosponsor · Republican · OH

Gary C. Peters

Cosponsor · Democratic · MI

WHITEHOUSE, SHELDON

Cosponsor · Democratic · RI

Christopher A. Coons

Cosponsor · Democratic · DE

Angus S. King Jr.

Cosponsor · Independent · ME

Adam B. Schiff

Cosponsor · Democratic · CA

John Sen Cornyn

Cosponsor · Republican · TX

Dan Sullivan

Sponsor · Republican · AK

No linked House roll-call vote is available yet. Senate votes are not currently synchronized.

Official Subjects

Environmental ProtectionMarine and coastal resources, fisheriesState and local government operationsWater qualityWetlandsGreat LakesHazardous wastes and toxic substancesHigher educationLakes and riversResearch administration and fundingAquatic ecologyEnvironmental assessment, monitoring, researchEnvironmental healthEnvironmental technologyMarine pollutionFood supply, safety, and labeling

Sources & text

Official Congress.gov record ↗Engrossed in Senate ↗Engrossed in Senate ↗Engrossed in Senate ↗Reported to Senate ↗

Congress.gov data last updated Sep 2, 2026. Automated summaries preserve a source version and generation timestamp; human edits are explicitly recorded.