A-Z Index of U.S. Government Departments and Agencies
I
- Idaho
- Illinois
- Immigration and Citizenship Services (USCIS)
- Immigration and Customs Enforcement (ICE)
- Indian Affairs
- Indian Arts and Crafts Board
- Indian Health Service
- Indiana
- Industrial College of the Armed Forces
- Industry and Security, Bureau of (BIS)
- Information Resource Management College
- Information Resources Center (ERIC)
- Innovation and Improvement Office
- Inspectors General
- Institute of Education Sciences
- Institute of Museum and Library Services
- Institute of Peace
- Inter-American Foundation
- Interagency Alternative Dispute Resolution Working Group
- Interagency Committee for the Management of Noxious and Exotic Weeds
- Interagency Council on Homelessness
- Interior Department (DOI)
- Internal Revenue Service (IRS)
- International Labor Affairs, Bureau of
- International Trade Administration (ITA)
- International Trade Commission
- Interpol
- Iowa