Stop Assistance to Counterfeiters Act - Amends the Foreign Assistance Act of 1961 to require U.S. foreign assistance recipients to certify that such assistance will not be used to intentionally traffic in goods or services that contain counterfeit marks or for other purposes that promote the improper use of intellectual property.
Exempts from such requirement direct assistance to a foreign government (or its entity) or to an international organization that is an association of representatives of national governments, including the United Nations.
Directs the President to suspend or terminate assistance to a recipient who is in violation of this Act. Authorizes a national security waiver.