# § 2781. Transactions with countries not fully cooperating with United States antiterrorism efforts
**(a)** **Prohibited transactions** No defense article or defense service may be sold or licensed for export under this chapter in a fiscal year to a foreign country that the President determines and certifies to Congress, by May 15 of the calendar year in which that fiscal year begins, is not cooperating fully with United States antiterrorism efforts.
**(b)** **Waiver** The President may waive the prohibition set forth in subsection (a) with respect to a specific transaction if the President determines that the transaction is important to the national interests of the United States.
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**Source Credit**: (Pub. L. 90–629, ch. 3, § 40A, as added Pub. L. 104–132, title III, § 330, Apr. 24, 1996, 110 Stat. 1258.)
## Editorial Notes
### References in Text
This chapter, referred to in subsec. (a), was in the original “this Act”, meaning , , , which is classified principally to this chapter. For complete classification of this Act to the Code, see Short Title note set out under and Tables.
### Codification
Another is classified to .
## Executive Documents
### Delegation of Functions
For delegation of functions of the President under this section, see section 1(q) of Ex. Ord. No. 13637, , 78 F.R. 16130, set out as a note under . Functions were previously delegated by Ex. Ord. No. 11958, which was formerly set out as a note under and was revoked, subject to a savings provision, by section 4 of Ex. Ord. No. 13637.