August 28, 2026 | Endorsements

H.R. 1800 / S. 1889, the Solidify Iran Sanctions Act of 2025

August 28, 2026 Endorsements

H.R. 1800 / S. 1889, the Solidify Iran Sanctions Act of 2025

Solidify Iran Sanctions Act of 2025 — FDD Action Endorsement (Preview)

← Back to Policy Endorsements

Bottom Line Up Front

H.R. 1800 / S. 1889, the Solidify Iran Sanctions Act of 2025, confronts a looming deadline: the statutory backbone of U.S. sanctions on Iran’s energy sector, the Iran Sanctions Act of 1996, is set to expire at the end of 2026. That deadline arrives even as Tehran keeps funding terrorism, arming proxies, and advancing its nuclear and missile programs. The bill strikes the sunset provision to make the law permanent, keeping core U.S. sanctions on Iran’s energy and weapons sectors in force for as long as the regime’s malign activity continues.

Bill Information

Bill Number H.R. 1800
Bill Name Solidify Iran Sanctions Act of 2025
Summary Makes the Iran Sanctions Act of 1996 permanent by repealing its sunset provision, keeping U.S. sanctions on Iran’s energy and weapons sectors in force before the law expires at the end of 2026.
Chamber Bicameral
Lead Sponsor Rep. Ryan Mackenzie (R-PA)
Date Introduced 03/03/2025
Companion Bill S. 1889
Companion Lead Sponsor Sen. Tim Scott (R-SC)
Companion Co-Lead Sen. Maggie Hassan (D-NH)
Companion Original Cosponsors Sens. Bill Hagerty (R-TN), Jacky Rosen (D-NV), and Sheldon Whitehouse (D-RI)

Read the full legislative text and view the list of cosponsors for the House and Senate versions.

FDD Action Expert Analysis

“The Solidify Iran Sanctions Act (SISA) would make permanent critical U.S. sanctions on Iran, ensuring pressure on the regime remains in place until Tehran ceases its destabilizing policies. Since 1996, the Iran Sanctions Act has been a key statutory tool for cutting off funding to the regime in Iran by targeting its lucrative energy sector, which is the lifeblood of the regime’s global terrorism and nuclear ambitions. SISA would make the Iran Sanctions Act permanent, sending a clear message to Tehran: Congress will maintain maximum pressure until the regime dismantles its nuclear program and ends its support for terrorism.”

Matt Zweig

Matt Zweig

Managing Director of Policy, FDD Action

Why It Matters

  • Tehran keeps funding terror: Iran continues to funnel weapons and financing to terrorist proxies across the Middle East and to advance its nuclear and ballistic missile programs. It has acquired destabilizing weapons from Russia and other malign actors, threatening U.S. allies and partners, including Israel.
  • Iran sanctions run out in 2026: For nearly three decades, the Iran Sanctions Act of 1996 has been the statutory backbone of U.S. sanctions on Iran’s energy sector. The Iran Sanctions Act requires the President to sanction entities tied to Iran’s energy sector and its illicit weapons and missile programs. That foundational law is now set to expire at the end of 2026, threatening a central source of U.S. leverage over Tehran unless Congress acts.
  • Lock in the sanctions for good: The bill strikes the sunset provision in the Iran Sanctions Act and makes it permanent. This extends the 1996 law to keep sanctions leverage in place for as long as Iran continues its malign activity.

Congressional Press Releases

Read statements from members of Congress who are supporting this legislation:

See more national security bills backed by FDD Action.

View the tracker →

About FDD Action

FDD Action is a 501(c)(4) advocacy organization that works directly with policymakers to advocate for a robust U.S. foreign policy — one that strengthens U.S. national security, does damage to America’s adversaries, and supports allies and partners. FDD Action serves as a trusted resource for congressional offices and executive branch policymakers navigating complex national security challenges, leveraging a team with decades of experience on Capitol Hill and in the policy arena.

Learn more about FDD Action’s mission and work here.

Issues:

Iran Sanctions and Illicit Finance