OADR

Office of Agricultural Defense Relations

OAPC

Office of Alien Property Custodian

OAWR

Office for Agricultural War Relations

OBCCC

Office of Bituminous Coal Consumers Council

OC

Office of Censorship

OCD

Office of Civilian Defense

OCIAA

Office of Coordinator of Inter-American Affairs

OCR

Office of Civilian Requirements

OCS

Office of Civilian Supply

ODN

Office of Dependency Benefits

ODHWS

Office of Defense and Health Welfare Services

ODT

Office of Defense Transportation

OEM

Office of Emergency Management

OES

Office of Economic Stabilization

OFC

Office of Fishery Coordination

OFE

Office of Foreign Economic Coordination

OFF

Office of Facts and Figures

OFRRO

Office of Foreign Relief and Rehabilitation Operations

OGR

Office of Government Reports

OLLA

Office of Lend-Lease Administration

OOC

Office of Censorship

OPA

Office of Price Administration

OPACS

Office of Price Administration and Civilian Supply

OPCW

Office of Petroleum Coordination for War

OPM

Office of Production Management

OSFCW

Office of Solid Fuels Coordinator for War

OSRD

Office of Scientific Research and Development

OSS

Office of Strategic Services

OWI

Office of War Information

OWM

Office of War Mobilization