The Regulatory Authority for Electronic Communications And Postal Services adopted the Rulebook on the form and method of issuing authorized expert supervisor identification in the field of postal services ("Official Gazette of RS", No. 84/25), which shall enter into force on October 9, 2025. This rulebook determines the form of identification, as well as the method of issuing identification to an authorized person performing expert supervision in the field of postal services, at the postal operator.