Comparison of the Obama‑Era JCPOA (2015) and the 2026 U.S.–Iran Memorandum of Understanding

Executive Summary

The 2015 JCPOA, negotiated under President Obama, was a detailed, enforceable nuclear agreement with strict limits, inspections, and multilateral oversight.

The 2026 U.S.–Iran MOU, negotiated under President Trump, is a ceasefire and de‑escalation framework, focused on reducing hostilities and reopening the Strait of Hormuz, with no nuclear restrictions defined yet.

These agreements differ fundamentally in purpose, structure, enforcement, and scope.

1. Purpose & Scope

Obama JCPOA (2015)

• Multilateral nuclear agreement (U.S., UK, France, Germany, Russia, China, EU)
• Designed to prevent Iran from developing a nuclear weapon
• Included detailed technical limits and verification mechanisms
• Sanctions relief tied to compliance

Trump MOU (2026)

• Bilateral ceasefire and de‑escalation framework
• Focused on ending current hostilities and reopening the Strait of Hormuz
• Nuclear issues deferred to future negotiations
• No inspection or verification structure announced

2. Nuclear Program Restrictions

JCPOA (Obama)

• Uranium enrichment capped at 3.67%
• Centrifuges reduced by ~2/3
• Uranium stockpile reduced by 98%
• Continuous IAEA monitoring and inspections
• Strict timelines and compliance checkpoints

2026 MOU (Trump)

• No enrichment limits announced
• No centrifuge limits
• No stockpile limits
• No inspection framework
• Nuclear negotiations planned for a later phase

3. Sanctions & Economic Measures

JCPOA

• Phased sanctions relief
• Reinstatement (“snap‑back”) if Iran violated terms
• $1.7B settlement paid separately for a decades‑old legal dispute

2026 MOU

• Potential sanctions relief discussed but not finalized
• Reports suggest possible oil sanctions waivers and unfreezing of assets
• No confirmed payments
• No formal enforcement mechanism announced

4. Military & Regional Security Elements

JCPOA

• Did not address regional conflicts
• Did not involve troop movements or ceasefires

2026 MOU

• 60‑day ceasefire window
• Reopening of the Strait of Hormuz
• No evidence of U.S. troop withdrawal commitments
• Iran does not gain control or tolling rights over the strait

5. Verification & Enforcement

JCPOA

• Extensive IAEA inspections
• Snap‑back sanctions for violations
• Clear compliance timelines

2026 MOU

• No verification system announced
• No enforcement mechanism defined
• Future negotiations expected to address these gaps

Bottom Line

• Obama’s JCPOA was a technical, enforceable nuclear non‑proliferation agreement with strict limits and inspections.
• The 2026 Trump MOU is a ceasefire and diplomatic framework, not a nuclear agreement, and currently lacks the detailed structure of the JCPOA.