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119-hr-5332119th Congress
Liquid Cooling for AI Act of 2025
Sponsored By: Representative Obernolte, Jay [R-CA-23]
Introduced
Summary
Creates a government-wide assessment and best-practice guidance for liquid cooling of AI compute clusters and high-performance computing facilities. This bill would task the Comptroller General to evaluate technical, market, safety, coolant, and heat-reuse issues and require the Department of Energy to respond with R&D and capacity-planning recommendations.
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Bill Overview
Analyzed Economic Effects
2 provisions identified: 2 benefits, 0 costs, 0 mixed.
Government review of data-center liquid cooling
This bill would require a federal review of liquid cooling in data centers. The Comptroller General would start it within 30 days after enactment. The study would cover R&D needs, energy and grid savings, compute capacity, coolant options, and failure risks. It would compare direct-to-chip and immersion cooling and draft reference rack, row, and room layouts. The team would consult governments, industry, academia, and national labs, and name an advisory group with DOE. A report would go to DOE and Congress within 90 days of enactment. It would include best practices, standards, security and resilience, and education recommendations. DOE would have 180 days after receiving that report to send Congress its assessment and R&D and heat-reuse advice, including why this matters for U.S. AI leadership.
Definitions for the liquid-cooling review
This bill would define key terms for the review and reports. It would define liquid cooling, direct-to-chip, immersion cooling, and heat-reuse. It would define AI and National Laboratory by citing existing laws. It would also name the Senate and House committees that would receive the reports. These definitions would apply upon enactment.
Sponsors & CoSponsors
Sponsor
Obernolte, Jay [R-CA-23]
CA • R
Cosponsors
Rep. Gottheimer, Josh [D-NJ-5]
NJ • D
Sponsored 9/11/2025
Rep. McBride, Sarah [D-DE-At Large]
DE • D
Sponsored 9/15/2025
Rep. Lieu, Ted [D-CA-36]
CA • D
Sponsored 9/15/2025
Rep. Houchin, Erin [R-IN-9]
IN • R
Sponsored 9/18/2025
Rep. Vindman, Eugene Simon [D-VA-7]
VA • D
Sponsored 10/8/2025
Rep. Harder, Josh [D-CA-9]
CA • D
Sponsored 10/21/2025
Rep. Foushee, Valerie P. [D-NC-4]
NC • D
Sponsored 10/21/2025
Rep. Fong, Vince [R-CA-20]
CA • R
Sponsored 12/17/2025
Rep. Tran, Derek [D-CA-45]
CA • D
Sponsored 1/14/2026
Rep. Van Drew, Jefferson [R-NJ-2]
NJ • R
Sponsored 1/14/2026
Rep. Costa, Jim [D-CA-21]
CA • D
Sponsored 3/19/2026
Roll Call Votes
No roll call votes available for this bill.
View on Congress.gov