State Courier Service Day is observed in Kazakhstan every December 20 to celebrate the foundation anniversary of the State Courier Service, which was established in 1991. This official professional holiday recognizes the vital role of the State Courier Service of Kazakhstan in the prompt delivery of sensitive and confidential documents for government agencies and military commands. The service has its roots in the courier systems of the Soviet Union and the Russian Empire, evolving from the Courier Corps created in 1796. Employees of the State Courier Service are tasked with handling correspondence that is critical to state security, requiring them to possess self-defense skills and the ability to protect sensitive documents. The holiday serves as a recognition of the responsibilities and skills of those who work in this essential service.