In November 1997, the United States imposed comprehensive financial and commercial sanctions on Sudan. Travelers intending to visit Sudan should contact the Department of the Treasury, Office of Foreign Assets Control (OFAC), Office of Compliance, telephone 1-800-540-6322 or 202-622-2490, regarding the effect of these sanctions.
You must be prepared to pay cash for all purchases, including hotel bills, airfares purchased locally, and all other travel expenses. Major credit cards, including Visa, MasterCard, or American Express, cannot be used in Sudan due to U.S. sanctions. Sudan has no international ATMs. Local ATMs draw on local banks only.
Exchanging money on the black market is illegal. U.S. currency issued prior to 1996 is generally not accepted anywhere in Sudan, and $100 bills must be issued after 2006. Travelers often experience difficulty transferring cash into the country, and travelers carrying large amounts of U.S. currency have been detained. Western Union operates in Khartoum.
Sudan is a conservative society, particularly in the capital and other areas where the Muslim population is the majority. Modest dress and behavior is expected for both men and women. Loose, long-sleeved shirts and full-length skirts or slacks are recommended attire for female visitors. Women who are not Muslim are not expected or required to cover their heads. Men may wear short-sleeved shirts, but short pants are not acceptable in public.