A-Z Index of U.S. Government Departments and Agencies
Find contact information for U.S. federal government departments and agencies including websites, emails, phone numbers, addresses, and more. Get contact information for each state and territory.
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- Capitol Police
- Capitol Visitor Center
- Career, Technical, and Adult Education, Office of
- Census Bureau
- Center for Food Safety and Applied Nutrition
- Center for Nutrition Policy and Promotion (CNPP)
- Center for Parent Information and Resources (CPIR)
- Centers for Disease Control and Prevention (CDC)
- Centers for Medicare and Medicaid Services (CMS)
- Central Command (CENTCOM)
- Central Intelligence Agency (CIA)
- Chemical Safety Board
- Chief Acquisition Officers Council
- Chief Financial Officers Council
- Chief Human Capital Officers Council
- Chief Information Officers Council
- Child Support Enforcement, Office of (OCSE)
- Citizenship and Immigration Services (USCIS)
- Civil Rights Division, Department of Justice
- Civil Rights, Department of Education Office of
- Civil Rights, Department of Health and Human Services Office for
- Coast Guard
- College of Information and Cyberspace
- Commerce Department (DOC)
- Commission of Fine Arts
- Commission on Civil Rights
- Commission on Presidential Scholars
- Commission on Security and Cooperation in Europe (Helsinki Commission)
- Committee for the Implementation of Textile Agreements
- Commodity Futures Trading Commission (CFTC)
- Community Oriented Policing Services (COPS)
- Community Planning and Development
- Computer Emergency Readiness Team (US CERT)
- Congress—U.S. House of Representatives
- Congressional Budget Office (CBO)
- Congressional Office for International Leadership
- Congressional Research Service
- Congressional Workplace Rights, Office of
- Consular Affairs, Bureau of
- Consumer Financial Protection Bureau
- Consumer Product Safety Commission (CPSC)
- Coordinating Council on Juvenile Justice and Delinquency Prevention
- Copyright Office
- Corps of Engineers
- Council of Economic Advisers
- Council on Environmental Quality
- Court of Appeals for the Armed Forces
- Court of Appeals for the Federal Circuit
- Court of Federal Claims
- Court of International Trade
- Court Services and Offender Supervision Agency for the District of Columbia
- Customs and Border Protection
- Cyber Command
- Cybersecurity and Infrastructure Security Agency (CISA)
