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Examining the Negotiation Framework Between Tehran and Washington on the Iran Nuclear Agreement
The negotiation framework between Tehran and Washington aims to establish a mutual understanding regarding the Iran nuclear agreement. A central pillar of these discussions is ensuring that the International Atomic Energy Agency can access facilities that have previously come under attack, including some located in underground tunnels that have housed materials, to carry out verification of these materials.
The reality on the ground, supported by technical principles and international law, indicates that the Joint Comprehensive Plan of Action was designed to provide assurances that Iran is not pursuing nuclear weapons. Key components of this plan included:
- Limiting the level and capacity of enrichment: By reducing both, the "breakout time"—the period required to produce material for a weapon—was extended to approximately one year.
- Significant reduction of uranium reserves: Iran committed to capping its enriched uranium stockpile at around 300 kilograms. Even with an increase in enrichment levels, this limitation would render the quantity insufficient for weapon construction.
- Redesign of the Arak reactor: The heavy-water reactor at Arak was redesigned to prevent the production of weapon-grade plutonium, effectively closing off a secondary pathway for weapon development.
- Unprecedented monitoring and verification: Iran accepted the implementation of the Additional Protocol, which allowed for broader access for the Agency, including surprise inspections, 24-hour monitoring of the supply chain, oversight of uranium mines, and access to suspicious sites. Such arrangements ensured that any deviations would be swiftly detected.
These elements demonstrate that the agreement was not based on "political trust" but rather on technical limitations, stringent oversight, and legal deterrents, such as the mechanism for the automatic reimposition of sanctions, ensuring that Iran was not pursuing nuclear weapons.
This framework represents a win-win scenario that formed the foundation of the agreement at that time, emphasizing transparency and assurance about Iran's nuclear program in exchange for the lifting of sanctions. In this context, a special mechanism was established to ensure that Iran would benefit economically from the lifting of sanctions. However, the withdrawal of the United States from the agreement and the inability of the remaining parties to uphold their commitments led to Iran reversing its obligations under the agreement within a year amid the resurgence of U.S. sanctions.
The fundamentals of this framework, considering the changes in both the quantity and quality of Iran's nuclear program over the past decade, could serve as a guiding light for both Iran and the United States in reaching a swift and new agreement.
Iran's red lines in the nuclear negotiations include the continuation of enrichment on its territory and the prohibition of exporting existing enriched materials. Tehran asserts that there are formulas to reconcile these principles with U.S. demands while ensuring that Iran does not acquire nuclear weapons. Concurrently, some U.S. media outlets have reported that the Trump team is prepared to accept limited enrichment in Iran, a stance that could help narrow the gap between the two sides on this specific issue.
This report addresses several pertinent questions: Why did Rafael Grossi enter the negotiation room? What are the technical pillars of the agreement defined in Geneva? How can Grossi assist in this process? What is the significance of the differing positions of Iran and the United States regarding enrichment? What is the status of nuclear materials following U.S. and Israeli attacks? Did the rhetoric of "Iran must not have nuclear weapons" help achieve Trump's objectives? Is a repeat of the Iran-U.S. agreement impossible?
February 23, 2026
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