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S. 435 119th Congress Senate

IRONDOME Act of 2025

Official title: A bill to improve the missile defense capabilities of the United States, and for other purposes.

Introduced: February 5, 2025 Introduced by: Dan Sullivan Republican · Alaska See on congress.gov
Armed Forces and National Security Administrative law and regulatory proceduresAlaskaAviation and airportsCongressional oversight
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Department of DefenseHawaiiMilitary facilities and propertyMilitary procurement, research, weapons developmentPublic contracts and procurementSpacecraft and satellitesSupply chain
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 Everywhere this bill has been 2 steps
Introduced
In committee
Reported out
Passed House
Passed Senate
To President
Became law
Feb 5, 2025
Read twice and referred to the Committee on Armed Services.
Feb 5, 2025
Introduced in Senate
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What's happening now February 5, 2025

Read twice and referred to the Committee on Armed Services.

 Plain-English summary Congressional Research Service

Increasing Response Options and Deterrence of Missile Engagements Act of 2025 or the IRONDOME Act of 2025

This bill requires the Department of Defense (DOD) and other entities to take specified actions to support U.S. missile defense capabilities, particularly with respect to the U.S. homeland.

DOD must submit to Congress a multi-year phased plan to transfer operations and sustainment responsibility for missile defense from the Missile Defense Agency to the appropriate military departments to allow the Missile Defense Agency to focus on research, development, and prototyping and testing.

Additionally, among other elements, the bill requires

  • the United States Northern Command and the Space Development Agency within DOD to use a specified acquisition process to conduct rapid testing and development of certain drone and satellite systems;
  • each commander of a combatant command to include the missile defense interceptor and sensor requirements of the command in annual budget requests;
  • DOD to use all authorities available to accelerate the development, production, and modernization of various defense systems and technology, including certain space-based interceptors; and
  • the Department of the Army to procure and field airships in support of the missile defense of the U.S. homeland from drones and ballistic, hypersonic, and cruise missiles.

On January 27, 2025, President Trump signed an executive order titled The Iron Dome for America. The order directs DOD to develop plans for a next-generation missile defense shield to protect the U.S. homeland from ballistic, hypersonic, and advanced cruise missiles, and other next-generation aerial attacks. 

 Bill text 1 version

Source documents hosted by congress.gov.

 Committees of jurisdiction 1
 Lobbying activity 9

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

  • ASTROSCALE U.S., INC.
    for ASTROSCALE U.S., INC. · Colorado · 3rd Quarter 2026 (July 1 - Sep 30)
  • ASTROSCALE U.S., INC.
    for ASTROSCALE U.S., INC. · Colorado · 2nd Quarter 2026 (Apr 1 - June 30)
  • FDD ACTION
    for FDD ACTION · District of Columbia · 4th Quarter 2025 (Oct 1 - Dec 31)
  • ASTROSCALE U.S., INC.
    for ASTROSCALE U.S., INC. · Colorado · 1st Quarter 2026 (Jan 1 - Mar 31)
  • FDD ACTION
    for FDD ACTION · District of Columbia · 4th Quarter 2025 (Oct 1 - Dec 31)
  • ASTROSCALE U.S., INC.
    for ASTROSCALE U.S., INC. · Colorado · 4th Quarter 2025 (Oct 1 - Dec 31)

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 9 filings →
 Cosponsors 2
All 2 Republican 2
R
Banks, Jim
Indiana · Feb 27, 2025
 R
Cramer, Kevin
North Dakota · Feb 5, 2025
Cite this page click to expand
APA
U.S. Congress. (2026). S. 435: IRONDOME Act of 2025. 119th Congress. Open America. https://openamerica.io/bill/119-S-435/
MLA
"S. 435: IRONDOME Act of 2025." 119th Congress, 2026, Open America, https://openamerica.io/bill/119-S-435/.
Bluebook (legal)
S. 435, 119th Cong. (2026), https://openamerica.io/bill/119-S-435/.
Markdown link
[S. 435: IRONDOME Act of 2025](https://openamerica.io/bill/119-S-435/)
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