31 CFR 538.209 - Prohibited transportation-related transactions involving Sudan.
Except as otherwise authorized, the following are prohibited:
(a) Any transaction by a U.S. person relating to transportation of cargo to or from Sudan;
(b) The provision of transportation of cargo to or from the United States by any Sudanese person or any vessel or aircraft of Sudanese registration; or
(c) The sale in the United States by any person holding authority under 49 U.S.C. subtitle VII of any transportation of cargo by air that includes any stop in Sudan.