Emergency position-indicating radiobeacon station
（重定向自PLB）
Emergency position-indicating radiobeacon station (short: EPIRS) is – according to Article 1.93 of the International Telecommunication Union's (ITU) Radio Regulations (RR) – defined as «A station in the mobile service the emissions of which are intended to facilitate search and rescue operations.» In marine use the terminology Emergency Position Indicating Radio Beacon (EPIRB) is used.