| W 50.1 |
California Debris Commission (1893) |
| W 13.1 |
California Department (1858-1865, 1904-1907) |
| W 79.1 |
Canal Zone (1912-1945) |
| CZ 1.1 |
Canal Zone Government (1951-1979) |
| C 3.17/2 |
Capital Issues Committee (1918-1919) |
| LC 28.1 |
Card Division (1940) |
| I 14.1 |
Census Office (1902-1903) |
| HE 20.4801 |
Center for Biologics Evaluation and Research (1996- ) |
| HE 20.4601 |
Center for Devices and Radiological Health (1983- ) |
| HE 20.2301 |
Center for Disease Control (1971-1973) |
| HE 20.4701 |
Center for Drug Evaluation and Research (1987- ) |
| HE 20.4201 |
Center for Drugs and Biologics (1971-1987) |
| HE 20.4501 |
Center for Food Safety and Applied Nutrition (1979- ) |
| HE 22.101 |
Center for Medicaid and State Operations (1977- ) |
| HE 22.401 |
Center for Medicare (1979- ) |
| HE 20.7701 |
Center for Professional Development and Training (1984-1988) |
| HE 20.4401 |
Center for Veterinary Medicine (1971- ) |
| D 114.1 |
Center of Military History (1974- ) |
| HE 20.7000 |
Centers for Disease Control and Prevention (1973- ) |
| HE 22.1 |
Centers for Medicare and Medicaid Services (1977- ) |
| W 78.1 |
Central Department (1911-1920) |
| CIA 5.2 |
Central Intelligence Agency |
| PrEx 3.1 |
Central Intelligence Agency (1947- ) |
| Pr 33.651 |
Central Intelligence Agency (1949-1953) |
| Pr 34.601 |
Central Intelligence Agency (1953-1961) |
| S 16.1 |
Central Translating Office (1940-1944) |
| D 116.1 |
Chemical Corps (1918- ) |
| W 91.1 |
Chemical Corps (1946-1947) |
| W 4.1 |
Chickamauga and Chattanooga National Military Park |
| |
Commission (1890-1922) |
| A 31.1 |
Chief Clerk (1898-1925) |
| T 10.1 |
Chief Clerk and Superintendent (1897-1910) |
| D 207.301 |
Chief of Naval Reserve (1978- ) |
| C 19.1 |
Children’s Bureau (1912-1913) |
| L 5.1 |
Children's Bureau (1913-1946) |
| FS 3.201 |
Children's Bureau (1946-1963) |
| FS 14.101 |
Children's Bureau (1963-1967) |
| FS 17.201 |
Children's Bureau (1967-1969) |
| HE 21.101 |
Children's Bureau (1970-1975) |
| HE 1.451 |
Children's Bureau (1975-1977) |
| HE 23.1201 |
Children's Bureau (1977- ) |
| C 31.101 |
Civil Aeronautics Administration (1940-1959) |
| CA 1.1 |
Civil Aeronautics Authority (1938-1940) |
| C 31.1 |
Civil Aeronautics Authority (1940-1959) |
| C 31.202 |
Civil Aeronautics Board (1940-1978) |
| CAB 1.1 |
Civil Aeronautics Board (1978-1985) |
| M 105.1 |
Civil Affairs Division (1947-1949) |
| TD 4.801 |
Civil Aviation Security Service (1967-2002) |
| CS 1.1 |
Civil Service Commission (1883-1979) |
| FS 4.1 |
Civilian Conservation Corps (1939-1943) |
| Pr 32.4801 |
Civilian Production Administration (1945-1946) |
| HE 22.201 |
Clinical Standards and Quality Office (1977- ) |
| T 11.1 |
Coast and Geodetic Survey (1878-1903) |
| C 4.1 |
Coast and Geodetic Survey (1903-1965) |
| W 53.1 |
Coast Artillery Office (1901-1941) |
| W 29.1 |
Coast Artillery School (1867-1916) |
| T 47.1 |
Coast Guard (1915-1917, 1919-1941, 1947-1966) |
| N 24.1 |
Coast Guard (1917-1919, 1941-1946) |
| TD 5.1 |
Coast Guard (1966-2003) |
