United States 119th Congress Status: In Committee Bipartisan · 5 D · 1 R cosponsors

HR 644 — Harmful Algal Bloom and Hypoxia Research and Control Amendments Act of 2025

Last action — Referred to the Committee on Science, Space, and Technology, and in addition to the Committee on Natural Resources, for a period to be subsequently determined by the Speaker, in each case for consideration of such provisions as fall within the jurisdiction of the committee concerned.

  1. ✓
    Introduced
  2. 2
    In Committee
  3. 3
    Passed House
  4. 4
    Passed Senate
  5. 5
    To Executive
  6. 6
    Enacted

This bill is in committee in the House. Introduced January 23, 2025. It must pass committee before a floor vote.

Next likely step: a committee vote, then a floor vote in the House.

Odds of enactment

Low chance

Based on the sponsor, cosponsors, and committee posture, this bill has a low chance of becoming law.

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A statistical estimate from our own model of past outcomes — an insight, not a guarantee. Policymaking is volatile.

Prognosis

Advancing 42% · moderate confidence
  • In Committee

    Current position in the legislative process.

  • 6 sponsors

    1 primary, 5 co-sponsors signed on.

  • Bipartisan support

    Sponsored across 2 parties (5 D · 1 R) — cross-party backing.

Based on stage, sponsorship breadth, committee status, recorded votes, and cross-state momentum — a description of the observable signals, not a prediction.

Summary

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

Bill Text

How this bill changes current law

10 changes Share ↗

Compared against current U.S. Code AI-generated reading aid — verify against the official bill.

The bill amends the Harmful Algal Bloom and Hypoxia Research and Control Act of 1998 to enhance assessments, management strategies, and coordination among federal agencies regarding harmful algal blooms and hypoxia.

  • 33 U.S.C. 4001

    assessments → task force, assessments, and action strategy

    The section heading is updated to reflect broader focuses beyond assessments.

  • 33 U.S.C. 4001

    coastal waters including the Great Lakes → marine, estuarine, and freshwater systems

    Expands the scope of the assessments to include more water bodies.

  • 33 U.S.C. 4001

    the ecological and economic consequences of hypoxia in United States coastal waters → the causes and ecological consequences of hypoxia on marine and aquatic species in their environments; and the costs of hypoxia, including impacts on food safety and security

    Clarifies the focus of the assessments to include specific species impacts and economic considerations.

  • 33 U.S.C. 4001

    hypoxia modeling and monitoring data → hypoxia modeling, forecasting, and monitoring and observation data

    Updates terminology to include forecasting in addition to modeling and monitoring.

  • 33 U.S.C. 4001

    In developing

    Removes the specific requirement for developing plans, streamlining the process.

  • 33 U.S.C. 4002

    and → monitoring, observing, forecasting,

    Broadens the objectives of the harmful algal bloom and hypoxia program to include monitoring and forecasting.

  • 33 U.S.C. 4002

    the comprehensive research plan and action strategy under section 4003 of this title → the scientific assessment submitted under section 603(b); and the Action Strategy.

    Aligns the program duties with updated assessment and action strategy requirements.

  • 33 U.S.C. 4002

    ocean and Great Lakes science and management programs and centers → programs and centers relating to the science and management of marine, estuarine, and freshwater systems

    Broadens the coordination scope of the Task Force’s functions.

  • 33 U.S.C. 4002

    to the greatest extent practicable, leverage existing resources and expertise available from local research universities and institutions

    Removes flexibility language, potentially imposing stricter resource leveraging.

  • 33 U.S.C. 4002

    and that the National Oceanic and Atmospheric Administration shall have primary responsibility for administering the Program. → The

    Removes language specifying the National Oceanic and Atmospheric Administration's primary responsibility.

Action History

  1. Introduced in House

  2. Introduced in House

  3. Referred to the Committee on Science, Space, and Technology, and in addition to the Committee on Natural Resources, for a period to be subsequently determined by the Speaker, in each case for consideration of such provisions as fall within the jurisdiction of the committee concerned.

  4. Referred to the Committee on Science, Space, and Technology, and in addition to the Committee on Natural Resources, for a period to be subsequently determined by the Speaker, in each case for consideration of such provisions as fall within the jurisdiction of the committee concerned.

Sponsors

Sponsorship breakdown

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1 sponsors · 5 co-sponsors · 541 not signed on

Sponsors (1)

Co-sponsors (5)

Not signed on (541)

541 members have not signed on to this bill.

Show all 541 →

"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.

Whip count is in markup. Polling the chamber and every recorded vote this session. Only the first open is slow. It’s instant for you after this. Calling the roll · Tallying · Engrossing

Subjects

Cross-referencing the record. Reading this bill against every other bill in the corpus by meaning, not keywords. Only the first open is slow. It’s instant for you after this. Matching · Ranking · Engrossing

Frequently asked questions

What does HR 644 do?
Harmful Algal Bloom and Hypoxia Research and Control Amendments Act of 2025This 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.
Who sponsors HR 644?
HR 644 is sponsored by Bonamici, Suzanne (Democratic), Joyce, David P. (Republican), Harder, Josh (Democratic), McBride, Sarah (Democratic), Stevens, Haley M. (Democratic), and Levin, Mike (Democratic).
What is the current status of HR 644?
This bill is in committee in the House. Introduced January 23, 2025. It must pass committee before a floor vote.
Where can I track HR 644?
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