The Radiocommunication Bureau regularly organizes bi-annual worldwide seminars/workshops on frequency management and radiocommunication systems and provides also regional seminars, workshops or information meetings, as required, in developing regions in cooperation with the Telecommunication Development Bureau. The events cover a wide array of topics in the field of radiocommunications and frequency management related to space and/or terrestrial services and attract attendees from engineers to high-level management from administrations, operators and industry sectors. For the latest information on the events organized by ITU-R, see list of the ITU-R Seminars and workshops.