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S. 93 119th Congress Senate

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

Official title: A bill to amend the Harmful Algal Bloom and Hypoxia Research and Control Act of 1998 to address harmful algal blooms, and for other purposes.

Introduced: January 14, 2025 Introduced by: Dan Sullivan Republican · Alaska See on congress.gov
Environmental Protection Aquatic ecologyEnvironmental assessment, monitoring, researchEnvironmental healthEnvironmental technology
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Food supply, safety, and labelingGreat LakesHazardous wastes and toxic substancesHigher educationLakes and riversMarine and coastal resources, fisheriesMarine pollutionResearch administration and fundingState and local government operationsWater qualityWetlands
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 Everywhere this bill has been 11 steps
Introduced
In committee
Reported out
Passed House
Passed Senate
To President
Became law
Sep 11, 2025
Message on Senate action sent to the House.
Sep 11, 2025
Held at the desk.
Sep 11, 2025
Received in the House.
Sep 10, 2025
Passed Senate without amendment and an amendment to the Title by Unanimous Consent. (consideration: CR S6547-6549; text: CR S6547-6549)
Sep 10, 2025
Passed Senate without amendment and an amendment to the Title by Unanimous Consent.
Sep 10, 2025
Passed/agreed to in Senate: Passed Senate without amendment and an amendment to the Title by Unanimous Consent.
Jul 1, 2025
Committee on Commerce, Science, and Transportation. Reported by Senator Cruz without amendment and an amendment to the title. With written report No. 119-34.
Jul 1, 2025
Placed on Senate Legislative Calendar under General Orders. Calendar No. 109.
Feb 5, 2025
Committee on Commerce, Science, and Transportation. Ordered to be reported without amendment favorably.
Jan 14, 2025
Read twice and referred to the Committee on Commerce, Science, and Transportation.
Jan 14, 2025
Introduced in Senate
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What's happening now September 11, 2025

Held at the desk.

 Plain-English summary Congressional Research Service

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.

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 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 (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.

 Hearings & markups 1
 Related & companion bills 1
  • HR 644 Identical bill Harmful Algal Bloom and Hypoxia Research and Control Amendments Act of 2025
 Bill text 3 versions

Source documents hosted by congress.gov.

 Committees of jurisdiction 1
 Lobbying activity 1

Registered lobbyists who named this bill in their disclosure filings. Source: federal Lobbying Disclosure Act filings.

Bodies those filers lobbied

A filing lists the bills it worked on and the parts of government it contacted in separate sections, so these are the bodies those filers named anywhere in the filing, not a per-bill breakdown.

 Cosponsors 15
All 15 Democratic 7 Republican 7 Independent 1
R
Kennedy, John
Louisiana · Jul 8, 2025
 I
King, Angus S., Jr.
Maine · May 12, 2025
 D
Schiff, Adam B.
California · May 12, 2025
 R
Moreno, Bernie
Ohio · Feb 4, 2025
 R
Wicker, Roger F.
Mississippi · Jan 30, 2025
 R
Cassidy, Bill
Louisiana · Jan 28, 2025
 D
Coons, Christopher A.
Delaware · Jan 28, 2025
 D
Padilla, Alex
California · Jan 28, 2025
 R
Murkowski, Lisa
Alaska · Jan 22, 2025
 D
Baldwin, Tammy
Wisconsin · Jan 14, 2025
 R
Collins, Susan M.
Maine · Jan 14, 2025
 R
Cornyn, John
Texas · Jan 14, 2025
 D
Merkley, Jeff
Oregon · Jan 14, 2025
 D
Peters, Gary C.
Michigan · Jan 14, 2025
 D
Whitehouse, Sheldon
Rhode Island · Jan 14, 2025
Cite this page click to expand
APA
U.S. Congress. (2026). S. 93: Harmful Algal Bloom and Hypoxia Research and Control Amendments Act of 2025. 119th Congress. Open America. https://openamerica.io/bill/119-S-93/
MLA
"S. 93: Harmful Algal Bloom and Hypoxia Research and Control Amendments Act of 2025." 119th Congress, 2026, Open America, https://openamerica.io/bill/119-S-93/.
Bluebook (legal)
S. 93, 119th Cong. (2026), https://openamerica.io/bill/119-S-93/.
Markdown link
[S. 93: Harmful Algal Bloom and Hypoxia Research and Control Amendments Act of 2025](https://openamerica.io/bill/119-S-93/)
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