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

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. 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.

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Timeline

1. 14 January 2025

   Introduced

   Read twice and referred to the Committee on Commerce, Science, and Transportation.

   Source: IntroReferral

2. 14 January 2025

   Introduced

   Introduced in Senate

   Source: IntroReferral

3. 5 February 2025

   Reported

   Committee on Commerce, Science, and Transportation. Ordered to be reported without amendment favorably.

   Source: Committee

4. 1 July 2025

   Calendars

   Placed on Senate Legislative Calendar under General Orders. Calendar No. 109.

   Source: Calendars

5. 1 July 2025

   Reported

   Committee on Commerce, Science, and Transportation. Reported by Senator Cruz without amendment and an amendment to the title. With written report No. 119-34.

   Source: Committee

6. 1 July 2025

   Reported

   Committee on Commerce, Science, and Transportation. Reported by Senator Cruz without amendment and an amendment to the title. With written report No. 119-34.

   Source: Committee

7. 10 September 2025

   Passed

   Passed Senate without amendment and an amendment to the Title by Unanimous Consent. (consideration: CR S6547-6549; text: CR S6547-6549)

   Source: Floor

8. 10 September 2025

   Passed

   Passed/agreed to in Senate: Passed Senate without amendment and an amendment to the Title by Unanimous Consent.

   Source: Floor

9. 11 September 2025

   Floor

   Held at the desk.

   Source: Floor

10. 11 September 2025

    Floor

    Received in the House.

    Source: Floor

11. 11 September 2025

    Floor

    Message on Senate action sent to the House.

    Source: Floor

Votes

No vote records are attached yet.

Versions

No version snapshots stored. Document URLs remain at the source.

Documents

4 official files

• Engrossed in Senate

  Engrossed in Senate · EN · 10 September 2025

  DownloadOpen at official source

• Reported to Senate

  Reported to Senate · EN · 1 July 2025

  DownloadOpen at official source

• Introduced in Senate

  Introduced in Senate · EN · 14 January 2025

  DownloadOpen at official source

• Introduced in Senate

  summary · EN · 14 January 2025

  Open at official source

Sponsors

• Sen. Sullivan, Dan [R-AK] · R · Sponsor
• Sen. Baldwin, Tammy [D-WI] · D · Sponsor
• Sen. Collins, Susan M. [R-ME] · R · Sponsor
• Sen. Cornyn, John [R-TX] · R · Sponsor
• Sen. Merkley, Jeff [D-OR] · D · Sponsor
• Sen. Peters, Gary C. [D-MI] · D · Sponsor
• Sen. Whitehouse, Sheldon [D-RI] · D · Sponsor
• Sen. Murkowski, Lisa [R-AK] · R · Cosponsor
• Sen. Coons, Christopher A. [D-DE] · D · Cosponsor
• Sen. Padilla, Alex [D-CA] · D · Cosponsor
• Sen. Cassidy, Bill [R-LA] · R · Cosponsor
• Sen. Wicker, Roger F. [R-MS] · R · Cosponsor
• Sen. Moreno, Bernie [R-OH] · R · Cosponsor
• Sen. Schiff, Adam B. [D-CA] · D · Cosponsor
• Sen. King, Angus S., Jr. [I-ME] · I · Cosponsor
• Sen. Kennedy, John [R-LA] · R · Cosponsor
• · sscm00 · Standing

Related records

• related to ← Harmful Algal Bloom and Hypoxia Research and Control Amendments Act of 2025