Get contact information for U.S. federal government agencies, departments, corporations, instrumentalities, and government-sponsored enterprises. Find websites, email, phone numbers, addresses, and more.

The U.S. Congress is the bicameral legislature of the United States government, and is made up of two chambers: the United States Senate (the upper chamber) and the United States House of Representatives (the lower chamber). Together, the two chambers exercise authority over the following legislative agencies:

A – Z Index of U.S. Government Departments and Agencies —— A – Z Index of U.S. Government Departments and Agencies —— Administrative Office of the United States Courts (1) Advisory Commission on Intergovernmental Relations Advisory Council On Historic Preservation (3) African Development Foundation Agriculture Department (3)

Alphabetical List of Agencies Appearing in the CFR (Revised as of January 1, 2022) CFR Title, Subtitle or Agency Chapter Administrative Conference of the United States 1, III Advisory Council on Historic Preservation 36, VIII Advocacy and Outreach, Office of 7, XXV Afghanistan Reconstruction, Special Inspector General for 5, LXXXIII

A-Z Index of U.S. Government Departments and Agencies Provides access to Federal agency Websites based on agency entries in the U.S. Government Manual. Go to Resource