US-Iran Final Nuclear Deal by which date?

Unless the written instrument is formally adopted without signature as described below, the instrument must be signed by both the United States and Iran.

If the written instrument is recognized by the United States and Iran as not requiring signature for execution, formal adoption of the instrument by both countries without signature will qualify.

(i) an official joint statement announcing that the United States and Iran have adopted, approved, executed, concluded, or otherwise finalized the instrument;

(ii) mutual official confirmation that the same published instrument has been agreed to, adopted, approved, executed, or concluded by both countries;

(iii) adoption, approval, or endorsement through an official resolution, ministerial decision, executive decision, or equivalent institutional act, where that act is the mechanism by which the relevant country adopts the instrument; or

(iv) an exchange of official diplomatic notes or letters confirming acceptance of the same instrument.

A qualifying written diplomatic instrument must:

(i) Be identified as the final deal contemplated by the June 14, 2026, memorandum of understanding, either in official United States or Iranian communications, or by a consensus of credible reporting;

(ii) Establish at least one specific obligation limiting Iran's nuclear program through a concrete, measurable benchmark against which compliance could be tested, which may take the form of a defined limit, prohibition, or quantity (e.g., a specific cap on the purity level to which Iran may enrich uranium, or an explicit commitment for Iran to surrender, destroy, or dilute its enriched uranium stockpile).

The content of the qualifying instrument must be expressed as an agreed obligation to be implemented.