The Sudan Relief and Rehabilitation Association requires travelers to opposition-held areas of southern Sudan to obtain a travel permit at its office in Nairobi. Travelers to Sudan are required to register with police headquarters within three days of arrival. Travelers must obtain police permission before moving to another location in Sudan and must register with police within 24 hours of arrival at the new location. These regulations are strictly enforced. Even with proper documentation, travelers in Sudan have been subjected to delays and detention by Sudan's security forces, especially when traveling outside Khartoum.
Authorities expect roadblocks to be respected.
Overseas, inquiries may be made at the nearest Sudanese embassy or consulate. Travel in all parts of Sudan, particularly outside Khartoum, is potentially hazardous. Civil war persists in the southern Sudan provinces of Upper Nile, Bahr El Ghazal, and Equatoria, and has spread to the eastern Sudan provinces of Blue Nile, Red Sea, and Kassala, along the Ethiopian and Eritrean borders. Banditry and incursions by southern Sudanese rebels are common in western Sudan, particularly in Darfur Province along the Chadian and Libyan borders, where a state of emergency exists. Transportation between Eritrea and Sudan is currently halted.