State Department

United States Department of the State was a pre-War department of the United States government. The Department of the State was a federal executive department responsible for the nation's foreign policy and international relations.

Background
Before going on his archeological expedition to attempt discovery of the lost city of Ubar, Lorenzo Cabot first had to obtain all the necessary permits from the Omani government. Despite all the bureaucracy involved, he decided it was best to go through the State Department, rather than directly to the government of Oman. He successfully obtained all he needed, and set out across the Atlantic Ocean in February of 1894.

Appearances
The Department of State is mentioned only in Fallout 4.