The Foreign and Commonwealth Office (FCO) advise against all travel to:
areas within 30km of the border with Libya, Nigeria, Niger and the Central African Republic
areas bordering Lake Chad including the regions of Kanem and Lac to the west of the towns of Mao and Bol
areas within 30km of Cameroon from Lake Chad as far as Léré
the regions of Sila, Wadi Fira, Ennedi, and Tibesti
the region of Ouaddaï except the town of Abéché
the region of Borkou except within 30km of the town of Faya Largeau
The FCO advise against all but essential travel to all remaining parts of the country including the towns of Faya Largeau in Borkou region and Abéché in Ouaddaï region, but with the exception of the capital N’Djamena to which the FCO do not advise against travel.
You should only undertake travel to those parts of the country to which the FCO advise against all but essential travel if you are confident that you have in place adequate security precautions to protect you from violent crime, the correct Chadian authorities are aware of your journey, you have in place the right permits if required, and you hold comprehensive travel insurance.
There is a general threat from terrorism. Attacks could be indiscriminate, including in places frequented by expatriates and foreign travellers. There is a threat of retaliatory attacks following the French intervention in Mali. See Terrorism.
There is no British Embassy in Chad. If you need consular assistance you should contact the British High Commission in Yaoundé, Cameroon.
Take out comprehensive travel and medical insurance before you travel.