This List contains: 1) The addresses and other relevant information of centralizing offices and an index of monitoring stations. 2) Particulars of monitoring stations carrying out the following measurements related to terrestrial radiocommunication stations: frequency measurements, field strength or power flux-density measurements, direction-finding measurements, bandwith measurements as well as automatic spectrum occupancy surveys. 3) Particulars of monitoring stations carrying out measurements related to space radiocommunication stations. This publication also contains an electronic map of monitoring stations and geographical zones for HF broadcasting (CIRAF zones).

The Radio Regulations, Edition of 2020, contains the complete texts of the Radio Regulations adopted by the World Radiocommunication Conference of 1995 (WRC-95) and reviewed by the subsequent World Radiocommunication Conferences: WRC-97 (Geneva, 1997), WRC-2000 (Istanbul, 2000), WRC-03 (Geneva, 2003), WRC-07 (Geneva, 2007), WRC-12 (Geneva, 2012), WRC-15 (Geneva, 2015) and WRC-19 (Sharm el-Sheik, 2019).

The ITU Radio Regulations facilitate equitable access to and rational use of the natural resources of the radio-frequency spectrum and geostationary satellite orbits. They also ensure the availability of the frequencies provided for distress and safety purposes and assist in the prevention and resolution of cases of harmful interference between the radio services of different administrations. Further, the regulations facilitate the efficient and effective operation of all radiocommunication services and, where necessary, regulate new applications of radiocommunication technology.

The Manual for Use by the Maritime Mobile and Maritime Mobile-Satellite Services is published in accordance with Article 20 (No. 20.14) of the Radio Regulations and results from studies carried out in the ITU-R since 2008. Volume 1 provides descriptive text of the organization and operation of the GMDSS and other maritime operational procedures, while Volume 2 contains the extracts of the regulatory texts associated with maritime operations.

A reference document that notes all the relevant rules or provisions from the ITU Radio Regulations that deal with maritime issues. It provides the operational procedures that should be followed by a ship station or a coast station in case of a distress situation. It also provides all the rules and procedures of the Global Maritime Distress and Safety System (GMDSS) - a collection of radio communications procedures and their supporting radio systems, which support maritime safety and the rescue of ships or crew during distress situations worldwide.

2020 edition now available in CD format, exceptionally without the ITU hologram. Each purchased copy should be registered by the end-user by scanning the QR code on the back cover. This is the English Language Edition.

The Radio Regulations, Edition of 2020, contains the complete texts of the Radio Regulations adopted by the World Radiocommunication Conference of 1995 (WRC-95) and reviewed by the subsequent World Radiocommunication Conferences: WRC-97 (Geneva, 1997), WRC-2000 (Istanbul, 2000), WRC-03 (Geneva, 2003), WRC-07 (Geneva, 2007), WRC-12 (Geneva, 2012), WRC-15 (Geneva, 2015) and WRC-19 (Sharm el-Sheik, 2019).

The ITU Radio Regulations facilitate equitable access to and rational use of the natural resources of the radio-frequency spectrum and geostationary satellite orbits. They also ensure the availability of the frequencies provided for distress and safety purposes and assist in the prevention and resolution of cases of harmful interference between the radio services of different administrations. Further, the regulations facilitate the efficient and effective operation of all radiocommunication services and, where necessary, regulate new applications of radiocommunication technology.

The Manual for Use by the Maritime Mobile and Maritime Mobile-Satellite Services is published in accordance with Article 20 (No. 20.14) of the Radio Regulations and results from studies carried out in the ITU-R since 2008. Volume 1 provides descriptive text of the organization and operation of the GMDSS and other maritime operational procedures, while Volume 2 contains the extracts of the regulatory texts associated with maritime operations.

A reference document that notes all the relevant rules or provisions from the ITU Radio Regulations that deal with maritime issues. It provides the operational procedures that should be followed by a ship station or a coast station in case of a distress situation. It also provides all the rules and procedures of the Global Maritime Distress and Safety System (GMDSS) - a collection of radio communications procedures and their supporting radio systems, which support maritime safety and the rescue of ships or crew during distress situations worldwide.

List IV contains important information for the mariner in relation to radiocommunications, including the GMDSS (Global Maritime Distress and Safety System). Detailed information such as the frequencies for transmitting and receiving, in addition to geographical coordinates, is provided for maritime coast radio stations, including those assuming watch-keeping using digital selective calling (DSC) techniques and radiotelephony. List IV also supplies details of additional services such as medical advice, navigational and meteorological warnings, MSI (Maritime Safety Information), AIS (Automatic Identification System), meteorological bulletins and radio time signals, along with the hours of service and operational frequencies, information on port stations, pilot stations, coast Earth stations, VTS stations, contact information of RCC (Rescue Coordination Centers), SAR agencies, Navarea coordinators and AtoNs (AIS Aids to Navigation).

As stipulated in Appendix 16 to the RR, this List shall be provided to all ship stations for which a Global Maritime Distress and Safety System (GMDSS) installation is required by international agreement.

Note: This title exists in CD format only, no book/hard-copy format. End-users should register their official CD by scanning their unique QR code.