Nuclear Industry Worker's Day is observed in the Russian Federation and the Republic of Kazakhstan every September 28. This date commemorates the anniversary of a decree issued on September 28, 1942, by the State Committee of Defense of the USSR, which organized uranium works and established a special laboratory for nuclear research. The holiday was officially established in Russia in 2005 by President Vladimir Putin and was later adopted in Kazakhstan in 2008. The nuclear industry is recognized as a key economic sector with strategic importance, particularly in Russia, which manages the entire nuclear fuel cycle from mining to disposal. While Kazakhstan has significant uranium resources, it does not currently utilize nuclear power. The day serves to honor the contributions of professionals working within this critical industry.