Dames & Moore v Regan (US Supreme Court, 1981)

Dames & Moore v Regan, 453 US 654 (1981), upheld the nullification of attachments, transfer of Iranian assets and suspension of specified claims as part of the hostage-crisis settlement. The Supreme Court decided the case on 2 July 1981. Its two principal holdings rested on different grounds; neither supplied unlimited presidential authority over foreign property or private litigation.

Settlement and implementation

President Carter blocked Iranian government property within United States jurisdiction on 14 November 1979 under Executive Order 12170 (1979) and the International Emergency Economic Powers Act (1977), or IEEPA. Treasury subsequently permitted certain court proceedings and prejudgment attachments under revocable licences. Dames & Moore obtained attachments while pursuing a contractual claim against Iranian defendants (judgment, pp. 662 to 664).

The 19 January 1981 Algiers Accords and the Iran-US Claims Tribunal (1981) provided for asset transfers and settlement of specified claims through arbitration. Carter issued implementing orders that day. On 24 February, President Reagan ratified those orders and suspended claims capable of presentation to the Tribunal. A claim would revive in United States courts if the Tribunal found that it lacked jurisdiction (pp. 664 to 666).

Two grounds of decision

For attachment nullification and asset transfer, the Court relied on the powers to compel transfers and nullify interests in property under IEEPA section 1702(a)(1)(B). The claimant's attachments were conditional and revocable. The Court reasoned that allowing attachments to defeat a negotiated release would undermine the bargaining function of the freeze (pp. 669 to 674).

For claims suspension, the Court expressly found that IEEPA did not authorise that action: an in personam claim was distinct from a transaction involving particular Iranian property. Instead, it relied on related legislation, the history of executive claims settlements and congressional acquiescence. The alternative Tribunal and Congress's lack of disapproval supported the result. The Court confined the holding to a settlement necessary to resolving a major foreign-policy dispute in circumstances of congressional acquiescence (pp. 675 to 688).

The Court rejected the argument that the Foreign Sovereign Immunities Act (United States, 1976) removed the claims-settlement authority. It distinguished altering substantive law from removing federal-court jurisdiction. It also left the merits of a possible takings claim arising from claims suspension unresolved, while recognising a route to seek compensation in the Court of Claims. That reservation differed from its rejection of compensation for the revocable attachments themselves (pp. 674, note 6, and 684 to 690).

Later boundary on IEEPA

In Learning Resources, Inc. v Trump, decided on 20 February 2026, the Supreme Court held that IEEPA did not authorise tariffs. Its discussion of Dames & Moore distinguished the earlier case as narrow, unrelated to tariffs and not a decision about the power to regulate. It also relied on the earlier refusal to read claims-suspension authority into IEEPA's text (2026 opinion, Part II-B, pp. 19 to 20).

The comparison supports measure-specific analysis. Asset control, claims settlement and tariffs cannot be treated as interchangeable merely because an emergency or foreign-policy purpose is asserted. This entry explains the two decisions; it does not certify an unexamined contemporary order or transaction.

Strategic significance

Frozen assets supported negotiation and could then be transferred to implement an interstate settlement. That is an example of Economic statecraft through an Asset freeze followed by reciprocal agreement. The authority validated here depended on the settlement and the particular legal grounds. It is not a standing licence to seize reserves whenever coercive utility is claimed.

Sources

• Supreme Court of the United States, *Dames & Moore v Regan*, 453 US 654, 2 July 1981, especially pp. 660 to 690. Complete opinion in the Library of Congress repository, accessed 30 October 2026.
• Supreme Court of the United States, *Learning Resources, Inc. v Trump*, Nos. 24-1287 and 25-250, 20 February 2026, opinion of the Court, Part II-B, pp. 19 to 20. Official slip opinion, accessed 30 October 2026.