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Alphabetical Agency List: O

L

L 35.1 Occupational Safety and Health Administration (1971- )
C 55.702 Oceanic and Atmospheric Research Office
A 74.1 Office for Agricultural War Relations (1941-1943)
HS 5.302 Office for Domestic Preparedness (2003-2007)
PR 32.401 Office for Emergency Management (1940-1945)
J 34.2 Office for Victims of Crime (1992- )
A 15.1 Office Irrigation Inquiry (1890-1896)
A 91.1 Office of Administrative Management (1960-?)
TD 4.201 Office of Aerospace Medicine (1964- )
A 45.1 Office of Agricultural Instruction (1926)
TD 4.101 Office of Airport Planning and Programming (1967- )
J 22.1 Office of Alien Property (1946-1966)
Pr 32.5701 Office of Alien Property Custodian (1942-1946)
L 37.101 Office of Apprenticeship (1975- )
C 45.1 Office of Area Development (1956-1958)
J 33.1 Office of Attorney Personnel Management (1985-?)
A 58.1 Office of Budget and Finance
C 43.1 Office of Business Economics (1953-1972)
EP 5.1 Office of Chemical Safety and Pollution Prevention (1980- )
HE 23.1402 Office of Child Care (1995- )
HE 21.1 Office of Child Development (1970-1975)
HE 1.401 Office of Child Development (1975-1977)
HE 3.501 Office of Child Support Enforcement (1977-1980)
HE 24.1 Office of Child Support Enforcement (1980- )
D 13.1 Office of Civil Defense (1961-1964)
D 119.1 Office of Civil Defense (1964-1972)
Pr 32.4401 Office of Civilian Defense (1941-1945)
D 204.1 Office of Civilian Personnel Policy (1966- )
I 63.1 Office of Coal Research (1960-1974)
A 21.1 Office of Communications (1987- )
J 36.2 Office of Community Oriented Policing Services (1994- )
FS 9.1 Office of Community War Services (1943-1946)
Y 11.1 Office of Compliance (1995- )
PrEx 16.1 Office of Consumer Affairs (1971-1973)
HE 1.501 Office of Consumer Affairs (1973-?)
I 39.1 Office of Consumers’ Counsel (1935-1939)
Pr 34.701 Office of Defense and Civilian Mobilization (1958- 1961)
Pr 32.4501 Office of Defense Health and Welfare Services (1941-1943)
Pr 33.1001 Office of Defense Mobilization (1950-1953)
Pr 34.201 Office of Defense Mobilization (1953-1958)
Pr 32.4901 Office of Defense Transportation (1941-1949)
A 80.101 Office of Distribution (1944-1945)
C 36.1 Office of Domestic Commerce (1945-194&
PrEx 24.1 Office of Drug Abuse Policy (1976-1978)
PrEx 10.1 Office of Economic Opportunity (1964-1975)
Pr 32.6001 Office of Economic Stabilization (1942-1946)
I 16.1 Office of Education (1929-1939)
FS 5.1 Office of Education (1939-1969)
HE 5.1 Office of Education (1970-1972)
HE 19.101 Office of Education (1972-1979)
ED 1.401 Office of Elementary and Secondary Education
EP 9.2 Office of Emergency Management
PrEx 4.1 Office of Emergency Preparedness (1968-1973)
E 10.1 Office of Energy Efficiency and Renewable Energy
EP 13.2 Office of Enforcement and Compliance Assurance (1992- )
A 10.1 Office of Experiment Stations (1923-1942)
A 77.401 Office of Experiment Stations (1942-1953)
C 49.201 Office of Export Controls (1961-1963)
Pr 32.4701 Office of Facts and Figures (1941-1942)
A 37.1 Office of Farm Management and Farm Economics (1915-1922)
L 36.301 Office of Federal Employees’ Compensation (1972-1974)
A 11.1 Office of Fiber Investigations (1891-1989)
A 86.1 Office of Food and Feed Conservation (1948)
C 54.1 Office of Foreign Direct Investments (1968-1974)
Pr 32.201 Office of Government Reports (1939-1945)
Pr 33.401 Office of Government Reports (1946-1948)
A 107.1 Office of Governmental and Public Affairs (1978- )
HE 23.1102 Office of Head Start (1977- )
HE 1.701 Office of Human Development (1976-1977)
HE 23.1 Office of Human Development Services (1977-?)
M 204.1 Office of Industrial Relations (1947-1949)
C 38.1 Office of Industry Cooperation (1947-1948)
HE 22.602 Office of Information Services
HS 2.2 Office of Infrastructure Protection (2003- )
EP 12.1 Office of Inspector General
T 72.2 Office of Inspector General (1989- )
Pr 32.4601 Office of Inter-American Affairs (1945-1946)
C 49.301 Office of International Economic Programs (1961-1963)
C 44.1 Office of International Trade Fairs (1955-1961)
C 48.101 Office of International Trade Fairs (1961-1963)
C 34.1 Office of International Trade Operations (1945)
D 108.1 Office of Judge Advocate General (1949- )
D 205.1 Office of Judge Advocate General (1949- )
D 302.1 Office of Judge Advocate General (1949- )
J 32.1 Office of Juvenile Justice and Delinquency Prevention (1974- )
Pr 32.5501 Office of Lend-Lease Administration (1941-1943)

O

PrEx 2.1 Office of Management and Budget (1970- )
A 80.801 Office of Marketing Service (1945)
A 81.1 Office of Marketing Services (1945)
I 60.1 Office of Minerals and Solid Fuels (1962-1971)
I 55.1 Office of Minerals Exploration (1958-1965)
HH 13.2 Office of Multi-Family Housing Programs
PrEx 26.1/2 Office of National Drug Control Policy (1988- )
N 13.2 Office of Naval Intelligence (1882-1947)
N 27.1 Office of Naval Operations (1915-1947)
M 207.1 Office of Naval Operations (1947-1949)
D 207.1 Office of Naval Operations (1949- )
N 32.1 Office of Naval Research (1946-1947)
M 216.1 Office of Naval Research (1947-1949)
D 210.1 Office of Naval Research (1949- )
I 64.1 Office of Oil and Gas (1946-1974)
PM 1.1 Office of Personnel Management (1979- )
D 118.1 Office of Personnel Operations (1949-?)
HH 14.2 Office of Policy Development and Research
Pr 32.4201 Office of Price Administration (1941-1946)
ES 3.1 Office of Price Stabilization (1950-1953)
N 30.1 Office of Procurement and Material (1942-1945)
A 80.201 Office of Production (1944-1945)
Pr 32.4001 Office of Production Management (1941-1942)
D 120.1 Office of Provost Marshal General (1969-1974)
D 6.1 Office of Public Affairs (1962- )
PB 1.1 Office of Public Buildings and Public Parks of the National
       Capital (1925-1933)
HE 20.1 Office of Public Health and Science (1970- )
N 31.1 Office of Public Relations (1941-1947)
M 215.1 Office of Public Relations (1947-1949) 
EP 6.1 Office of Radiation and Indoor Air (1970- )
C 49.101 Office of Regional Economics (1961-1963)
ES 5.1 Office of Rent Stabilization (1951-1953)
EP 11.1 Office of Research and Development
PrEx 8.1 Office of Science and Technology (1962-1973)
PrEx 23.1 Office of Science and Technology Policy (1976- )
NS 2.1 Office of Science Information Service (1958-?)
T 44.1 Office of Solicitor of Treasury (1830-1870)
EP 3.1 Office of Solid Waste (1970-?)
EP 10.2 Office of Solid Waste and Emergency Response
MS 2.1 Office of Special Counsel (1979- )
ED 1.201 Office of Special Education and Rehabilitative Services (1979- )
FS 13.1 Office of Special Services (1946-1950)
HE 22.502 Office of Strategic Operations and Regulatory Affairs
I 71.1 Office of Surface Mining Reclamation and Enforcement (1977- )
C 35.1 Office of Technical Services (1946-1953)
PrEx 18.1 Office of Telecommunications Policy (1970-1977)
Pr 33.301 Office of Temporary Controls (1946-1947)
I 35.1 Office of Territories (1950-1971)
A 87.1 Office of the Administrator of the Marketing Act (1947-1949)
PrEx 28.2 Office of the Director of National Intelligence (2005- )
J 37.2 Office of the Inspector General
S 24.1 Office of the Inspector General
I 50.1 Office of the Petroleum Coordinator for War (1942)
D 106.1 Office of the Quartermaster General (1949- )
L 21.1 Office of the Solicitor (1913- )
T 46.1 Office of the Supervising Tea Examiner (1897-1920)
T 63.301 Office of the Treasurer of the United States (1940- )
PrEx 9 Office of the U.S. Trade Representative (1974- )
T 71.1 Office of Thrift Supervision (1989-2011)
A 108.1 Office of Transportation (1980-1990)
EP 6.52 Office of Transportation and Air Quality
L 37.201 Office of Unemployment Insurance (1975- )
L 25.1 Office of Veterans' Reemployment Rights (1947-?)
FS 10.1 Office of Vocational Rehabilitation (1943-1946)
Pr 32.5001 Office of War Information (1942-1945)
Pr 32.5901 Office of War Mobilization (1943-1944)
EP 2.1 Office of Water (1970- )
HE 20.1701 Office of Water Hygiene (1970)
EP 8.1 Office of Wetlands, Oceans and Watersheds
L 36.401 Office of Workers' Compensation Programs (1975- )
I 61.1 Oil Import Administration (1959-1971)
I 62.1 Oil Import Appeals Board (1959-1971)
AA 2.1 Older Americans Volunteer Programs (1971-1994)
SB 9.1 Operations Bureau (1917-1920)
W 35.1 Ordnance and Fortification Board (1888-1920)
W 34.1/1 Ordnance Department (1812-1947)
M 111.1 Ordnance Department (1947-1949)
OP 1.1 Overseas Private Investment Corporation (1969- )