The Day of the Russian nuclear security specialist was established by Decree of the President of the Russian Federation No. 549 dated May 31, 2006 "On the establishment of professional holidays and memorable days in the Armed Forces of the Russian Federation."
It is celebrated annually on September 4 - on the anniversary of the creation of the Special Department under the General Staff of the USSR Armed Forces in 1947, which was entrusted with the leadership of nuclear weapons testing (today it is the 12th Main Directorate of the Ministry of Defense of the Russian Federation).
Then two departments were involved in the work on the creation of the atomic bomb - the military and the atomic industry. The task of the Special Department of the General Staff was the preparation and testing of the atomic bomb. The main result of his activities was the creation in a short time of the Semipalatinsk nuclear test site, where on August 29, 1949 the first nuclear test in the USSR was carried out, which put an end to the US nuclear monopoly.