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S. 572 119th Congress Senate

Shadow Wolves Improvement Act

Official title: A bill to enhance the effectiveness of the Shadow Wolves Program, and for other purposes.

Introduced: February 13, 2025 Introduced by: Ruben Gallego Democratic · Arizona See on congress.gov
Immigration Border security and unlawful immigrationCongressional oversightDrug trafficking and controlled substancesFederal-Indian relations
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Government employee pay, benefits, personnel managementHuman traffickingLaw enforcement administration and fundingLaw enforcement officersSmuggling and trafficking
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 Everywhere this bill has been 5 steps
Introduced
In committee
Reported out
Passed House
Passed Senate
To President
Became law
Nov 3, 2025
Placed on Senate Legislative Calendar under General Orders. Calendar No. 251.
Nov 3, 2025
Committee on Homeland Security and Governmental Affairs. Reported by Senator Paul with an amendment in the nature of a substitute. Without written report.
Jul 30, 2025
Committee on Homeland Security and Governmental Affairs. Ordered to be reported with an amendment in the nature of a substitute favorably.
Feb 13, 2025
Read twice and referred to the Committee on Homeland Security and Governmental Affairs.
Feb 13, 2025
Introduced in Senate
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What's happening now November 3, 2025

Placed on Senate Legislative Calendar under General Orders. Calendar No. 251.

 Plain-English summary Congressional Research Service

Shadow Wolves Improvement Act

This bill allows for the revision of the federal employment classification of the Shadow Wolves, a tactical patrol unit in Homeland Security Investigations currently operating on the lands of the Tohono O'odham Nation in Arizona on the U.S.-Mexico border, and establishes other requirements related to the expansion of the Shadow Wolves program.

Specifically, the bill allows U.S. Immigration and Customs Enforcement (ICE) to noncompetitively convert certain special agents serving in the Shadow Wolves program from the excepted service to the competitive service. Competitive service positions in the federal government are subject to examinations and a statutorily defined hiring process. These agents must have served in the unit for three years to qualify for the conversion regardless of the location assigned. 

In coordination with appropriate representatives of partnering tribal governments, including the Tohono O'odham Nation, ICE must (1) specify the mission and goals of the Shadow Wolves program, and (2) update the strategy for the expansion of the program.

Additionally, ICE must (1) determine national staffing needs and required skills for the program, (2) provide current Shadow Wolves classified as officers written information about reclassifying as special agents, (3) develop a succession plan for anticipated retirements among agents in the program, and (4) develop criteria for evaluating and selecting additional tribal lands on which additional Shadow Wolves units may be located.

ICE must report to specified congressional committees regarding the implementation of this bill. 

 Hearings & markups 1
 Related & companion bills 1
  • HR 6379 Identical bill Shadow Wolves Improvement Act
 Bill text 2 versions

Source documents hosted by congress.gov.

 Committees of jurisdiction 1
 Lobbying activity 14

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.

See all 14 filings →
 Cosponsors 3
All 3 Democratic 1 Republican 2
R
Hoeven, John
North Dakota · Feb 13, 2025
 D
Kelly, Mark
Arizona · Feb 13, 2025
 R
Lankford, James
Oklahoma · Feb 13, 2025
Cite this page click to expand
APA
U.S. Congress. (2026). S. 572: Shadow Wolves Improvement Act. 119th Congress. Open America. https://openamerica.io/bill/119-S-572/
MLA
"S. 572: Shadow Wolves Improvement Act." 119th Congress, 2026, Open America, https://openamerica.io/bill/119-S-572/.
Bluebook (legal)
S. 572, 119th Cong. (2026), https://openamerica.io/bill/119-S-572/.
Markdown link
[S. 572: Shadow Wolves Improvement Act](https://openamerica.io/bill/119-S-572/)
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