The Defense Production Act of 1950 (DPA), provides the President a broad set of authorities to ensure that domestic industry can meet national defence requirements. In the DPA, Congress has found that "the security of the United States is dependent on the ability of the domestic industrial base to supply materials and services for the national defence and to prepare for and respond to military conflicts, natural or man-caused disasters, or acts of terrorism within the United States." Through the DPA, the President can, among other activities, prioritise contracts for goods and services, and offer incentives within the domestic market to enhance the production and supply of critical materials and technologies when necessary for national defence. Since 1950, the DPA has been reauthorised over 50 times by Congress, most recently in 2009. The majority of DPA authorities will expire on September 30, 2014, unless reauthorised. This book examines some of the extensive history of the DPA, focusing primarily on its creation and most recent legislative reauthorisation.