As of June 2025, the IAEA Board of Governors declared Iran
in breach of its non-proliferation obligations for violating inspection agreements. Iran has denied inspectors access to, and failed to explain uranium traces at, undeclared sites. These actions violate the Comprehensive Safeguards Agreement under the NPT.
Key Aspects of Non-Compliance (as of June 2025):

Failed Inspection Access: Iran
refused inspectors access to suspected nuclear sites.
Undeclared Uranium: Uranium particles were discovered at locations not declared by Iran, specifically in Varamin, Marivan, and Turquzabad, which Iran failed to explain.
Breaching JCPOA Limits: Since 2019, Iran has increased its stockpile of enriched uranium, enriched to 60% and 20% (instead of the 3.67% limit), and operated advanced centrifuges beyond agreed levels.
Restricted Access: Iran stopped implementing key monitoring measures for IAEA inspectors in February 2021.

Background and Recent Developments:

2025 Developments: Despite a temporary deal in September 2025 for cooperation, earlier in the year the IAEA reported on Iran
's inability to explain, and subsequent sanitization of, potential nuclear-related locations.
International Response: The European signatories (UK, Germany, France) have noted these breaches, creating a potential for a "snapback" of sanctions.
Previous Violations: Iran has breached JCPOA limits since 2019, largely in response to the US withdrawal from the deal in 2018.

The IAEA continues to express concern about Iran
's ability to explain the presence of human-made uranium particles