The development of the OPA was part of the history of an all-over mobilization of the Nation's resources. But within the Agency, there were organizational and administrative problems of price control of considerable importance and magnitude. This volume differs from others in the series which bear the same general title in that it treats not the substantial economic or legal problems of price control, but rather the administrative machinery developed in the national office to cope with them. It covers the major organizational land administrative problems of OPA's price department and traces the evolution of more or less satisfactory solutions for most of them.