22 U.S.C. § 7203 - U.S. Code - Unannotated Title 22. Foreign Relations and Intercourse § 7203. Exceptions

(A) pursuant to a declaration of war against the country or entity;

(B) pursuant to specific statutory authorization for the use of the Armed Forces of the United States against the country or entity;

(C) against which the Armed Forces of the United States are involved in hostilities; or

(D) where imminent involvement by the Armed Forces of the United States in hostilities against the country or entity is clearly indicated by the circumstances; or

(A) controlled on the United States Munitions List established under section 2778 of this title;

(B) controlled on any control list established under the Export Administration Act of 1979 or any successor statute (50 U.S.C. App. 2401 et seq.)  1; or

(C) used to facilitate the design, development, or production of chemical or biological weapons, missiles, or weapons of mass destruction.