Space Services Department (SSD)

The Space Services Department (SSD) is responsible for coordination and recording procedures for space systems and earth stations. The Department handles capture, processing and publication of data and carries out examination of frequency assignment notices submitted by administrations for inclusion in the formal coordination procedures or recording in the Master International Frequency Register (MIFR).

The Department is also responsible for managing the procedures for space related assignment or allotment plans of the ITU and for provision of assistance to administrations on all of the above issues.

Structure of SSD

Space Publication and Registration Division (SPR)
Space Systems Coordination Division (SSC)
Space Notification and Plans Division (SNP) ​​

BRIFIC
SNL
SNS
Space Plans

Terrestrial Services Department (TSD)

​​​​​​​​​​​​​​​​The Terrestrial Services Department (TSD) carries out technical and regulatory functions and provides assistance to administrations in the domain of international management of the RF spectrum, as specified in the Radio Regulations and various Regional Agreements, concerning terrestrial services (broadcasting, fixed, maritime mobile, aeronautical mobile, etc.).

It processes notifications of frequency assignments, maintains the Master Register and Plans concerning terrestrial services and publishes their updates at regular intervals.

It applies various administrative regulations dealing with allocation of international means of identifications (call sign series, MIDs) and with safety of life. To this end, it processes submissions for various service documents (List of coast stations, List of ship stations, etc.), publishes their updates and maintains their on-line versions.​

BRIFIC
GLAD
MARS
WISFAT

Radiocommunication Study Groups

The ITU-R Study Groups develop the technical bases for decisions taken at World Radiocommunication Conferences and develop global standards (Recommendations), Reports and Handbooks on radiocommunication matters. More than 5​ 000 specialists, from administrations, the telecommunications industry as a whole and academic organizations throughout the world, participate in the work of the Study Groups on topics such as efficient management and use of the spectrum/orbit resource, radio systems characteristics and performance, spectrum monitoring and emergency radiocommunications for public protection and disaster relief.

Coordination Committee for Vocabulary (CCV)
Conference Preparatory Meeting (CPM)
Chairmen and Vice-Chairmen Meeting (CVC)

The Radio Regulations (RR)

​​​​​​The legal framework of ITU comprises the basic instruments of the Union, which have treaty status and are binding on ITU Member States. These instruments are the Constitution and Convention of the International Telecommunication Union and the Administrative Regulations, which complement the Constitution and the Convention.

The Radio Regulations (RR) form an integral part of the Administrative Regulations.

The Rules of Procedure are approved by the Radio Regulations Board (RRB). They complement the RR by providing clarification of the application of particular Regulations or establishing the necessary practical procedures that may not be provided for in the current Regulatory Procedures