Introduction The WARC-79 identified the requirement for the service Study Groups of the CCIR to give consideration to the needs of their services to effect protection of installations against atmospheric electricity@ particularly lightning discharges. This Report@ relating to sound broadcasting@ complements information for the fixed and radio-relay services contained in Reports 861 and 932 respectively. CCITI Study Group V is currently considering the protection of telecommunication lines and equipment against lightning discharges and the overall subject of lightning protection is under review by IEC Committee TC 81.