"Since March 9, 1933, the United States has been in a state of declared national emergency. In fact, there are now in effect four presidentially proclaimed states of national emergency: In addition to the national emergency declared by President Roosevelt in 1933, there are also the national emergency proclaimed by President Truman on December 16, 1950, during the Korean conflict, and the states of national emergency declared "
Senate Report 93-549: Emergency Powers Statutes: Provisions of Federal Law Now in Effect Delegating to the Executive Extraordinary Authority in Time of National Emergency; Report of the Special Committee on the Termination of the National Emergency
https://anticorruptionsociety.files.wordpress.com/2013/09/senate-report-93-549_0.pdf