Whenever the United States hands over civilian nuclear technology to another country, it isn't just selling reactors or fuel rods. It's handing over the keys to atomic energy.
Because that same energy can be turned into a nuclear weapon, Washington doesn't move a single piece of nuclear equipment without putting strict legal handcuffs on the receiving nation.
Those handcuffs are known as Section 123 Agreements.
The mechanism, born out of the Atomic Energy Act of 1954, governs every civilian nuclear deal the U.S. strikes with foreign partners. But right now, a landmark 30-year deal between the United States and Saudi Arabia is turning the entire playbook on its head, igniting fierce debates over national security, non-proliferation, and Middle Eastern geopolitical balance.
Here's how U.S. nuclear agreements actually work under the law, why they matter, and why the latest Saudi deal is driving foreign policy experts crazy.
What Is a 123 Agreement and Why Does It Exist?
Under Section 123 of the U.S. Atomic Energy Act of 1954, American companies can't export significant nuclear materials, reactors, or major equipment to another country without a formal bilateral pact approved by the President and reviewed by Congress.
It sounds like administrative red tape. It's actually a global security filter.
When a nation wants American nuclear technology—which is among the most reliable and advanced in the world—it must accept a baseline set of nine non-proliferation conditions. These criteria ensure that peaceful power generation stays peaceful.
The Nine Core Rules Every Deal Is Built On
While specific details shift depending on the diplomatic partner, standard 123 Agreements require recipient nations to agree to specific safeguards:
- Permanent Safeguards: Transferred nuclear materials and equipment must remain under International Atomic Energy Agency (IAEA) monitoring indefinitely.
- Full-Scope Inspection Commitments: Non-nuclear-weapon states must allow IAEA safeguards across all their peaceful nuclear facilities.
- No Military Use: Transferred items cannot be repurposed for nuclear weapons, research on explosives, or any military application.
- Right of Return: If a country detonates a nuclear device or violates IAEA terms, the U.S. can demand the immediate return of all transferred materials and equipment.
- Veto Over Transfers: The partner nation cannot re-transfer American nuclear technology or fuel to a third country without explicit U.S. approval.
- Physical Security: Nuclear sites must maintain strict security measures against theft or sabotage.
- Prior Consent for Enrichment and Reprocessing: The receiving country cannot enrich uranium or reprocess spent fuel (the two pathways to bomb-grade material) using U.S. items unless Washington explicitly consents.
- Storage Control: Transferred plutonium or highly enriched uranium can only be stored in facilities pre-approved by the U.S.
- Component Guarantees: These rules extend to all major reactor components and derived materials.
The "Gold Standard" Versus Realpolitik
For years, non-proliferation advocates pointed to the 2009 U.S.–United Arab Emirates nuclear deal as the ideal benchmark.
That agreement established what arms control experts call the "Gold Standard." Under those terms, the UAE voluntarily foreswore any domestic uranium enrichment or spent fuel reprocessing on its own soil. Instead, Abu Dhabi agreed to import all its reactor fuel from external international markets.
By giving up the ability to enrich uranium domestically, a country voluntarily eliminates the technical capability to build a nuclear bomb.
The Big Friction Point: Most foreign nations view the "Gold Standard" as an infringement on their sovereignty. They argue that under the global Non-Proliferation Treaty (NPT), every country has an inherent right to peaceful civilian nuclear energy, including domestic enrichment.
This is precisely where the traditional system collides with raw geopolitical realities.
When Washington insists on the strict Gold Standard, partner countries don't just say "okay." Often, they walk away and talk to someone else.
China's state nuclear firms and Russia's Rosatom are more than willing to build reactors in the Middle East, Africa, and Asia without attaching strict non-proliferation strings or requiring democratic oversight. If the U.S. holds out for absolute perfection, it risks pricing American companies like Westinghouse out of massive global contracts, while handing strategic dominance over local energy grids to Beijing and Moscow.
The Saudi Arabia Breaking Point
The recent U.S.–Saudi Arabia nuclear pact exposes this precise tension.
Saudi Arabia wants nuclear power to diversify its grid away from oil. Right now, the kingdom burns over a million barrels of crude oil every single day just to run domestic air conditioning and water desalination plants during peak summer heat. Replacing that crude with nuclear power frees up massive amounts of oil for lucrative export.
However, Crown Prince Mohammed bin Salman made one thing clear during negotiations: Saudi Arabia would not sign a deal that legally banned domestic enrichment forever.
The resulting 30-year agreement signed between Washington and Riyadh omits the strict Gold Standard. It sets up a framework where American firms lead multi-billion-dollar reactor construction, while laying out a pathway to conduct a joint two-year feasibility study on building a uranium enrichment facility inside Saudi Arabia.
┌────────────────────────────────────────────────────────────────────────┐
│ TWO PATHS TO ATOMIC ENERGY │
├────────────────────────────────────────────────────────────────────────┤
│ THE "GOLD STANDARD" MODEL (e.g., UAE) │
│ ➔ Imports pre-enriched nuclear fuel from abroad │
│ ➔ Enriches zero uranium domestically │
│ ➔ Near-zero risk of weaponization │
├────────────────────────────────────────────────────────────────────────┤
│ THE CASE-BY-CASE FLEXIBLE MODEL (e.g., Saudi Deal) │
│ ➔ Allows domestic nuclear infrastructure under joint management │
│ ➔ Keeps U.S. firms embedded in local facilities │
│ ➔ Opens potential pathway to domestic fuel cycles │
└────────────────────────────────────────────────────────────────────────┘
Critics call this omission a dangerous shift that risks sparking a regional nuclear arms race. Proponents contend that embedding American personnel and technologies in Saudi facilities through a U.S. managed "black box" arrangement gives Washington far more control than letting Riyadh buy reactors from China or Russia.
How Congress Can Block or Approve a Nuclear Pact
Presidents don't have total freedom to sign nuclear deals behind closed doors. Congress holds legal oversight power, though the rules heavily favor the Executive Branch.
Once a Section 123 agreement is negotiated by the Department of State and DOE, it is formally submitted to Congress alongside a Nuclear Proliferation Assessment Statement.
The approval process works through a ticking clock:
- The 90-Day Continuous Session Clock: Congress gets 90 days of continuous legislative session to review the pact.
- Automatic Approval: If the deal meets all standard statutory non-proliferation conditions, it automatically becomes law when the 90 days expire—unless Congress actively passes a joint resolution of disapproval.
- The Veto Barrier: If lawmakers pass a resolution to block the deal, the President can simply veto it. Overriding that veto requires a two-thirds supermajority in both the House and the Senate.
Because assembling a two-thirds majority against a sitting president's foreign policy is notoriously difficult, most standard 123 agreements clear Congress without major roadblocks.
However, if a President chooses to negotiate an exempted agreement—one that intentionally bypasses any of the nine standard statutory non-proliferation criteria—the math flips. Exempted deals require Congress to pass an affirmative joint resolution of approval before any nuclear cooperation can begin.
What This Means for Global Proliferation moving forward
The U.S. currently maintains roughly two dozen 123 Agreements governing peaceful nuclear trade with dozens of individual nations and international groups.
As climate mandates force countries to look toward zero-emission baseload power, demand for advanced nuclear reactors is surging globally. The U.S. strategy is evolving from a rigid one-size-fits-all policy into a high-stakes diplomatic balancing act.
- Security vs. Commerce: Demanding perfection through the Gold Standard keeps proliferation risks low, but it risks ceding global market share to geopolitical rivals.
- Influence over Isolation: Negotiating customized agreements keeps American scientists, security officials, and corporations inside foreign nuclear programs, providing indirect visibility and leverage.
Section 123 isn't just about technical compliance. It's the primary diplomatic tool Washington uses to prevent civilian power grids from turning into secret weapons factories.
Next Steps for Tracking Nuclear Policy
If you want to monitor how current and future Section 123 nuclear agreements unfold, focus on these key actions:
- Track Congressional Federal Register Filings: Watch the House Foreign Affairs Committee and Senate Foreign Relations Committee schedules for formal submissions of Section 123 text.
- Review IAEA Safeguards Reports: Check periodic public reports from the International Atomic Energy Agency to monitor whether partner nations accept Additional Protocol inspections.
- Monitor State Department Releases: Follow official updates from the U.S. Department of State’s Bureau of International Security and Nonproliferation for announcements on upcoming renewal dates for active bilateral pacts.
