– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
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International Telecommunication Union (ITU)

The International Telecommunication Union (ITU) activities cover all aspects of telecommunication worldwide. ITU Radiocommunication Sector (ITU-R) is charged with determining the technical characteristics and operational procedures for a huge and growing range of services.

ITU-R plays a vital role in the management of the radio-frequency spectrum. In their role as global spectrum coordinator, the Member States of the Radiocommunication Sector develop and adopt the Radio Regulations, a voluminous set of rules which serve as a binding international treaty governing the use of the radio spectrum by some 40 different services around the world. In addition, ITU-R is responsible for coordinating efforts to ensure that the communication, broadcasting and meteorological satellites in the world's increasingly crowded skies can co-exist without causing harmful interference to one another's services. In this role, the Union facilitates agreements between both operators and governments, and provides practical tools and services to help frequency spectrum managers carry out their day-to-day work.

The mission of the ITU Radiocommunication Sector is, inter alia, to ensure rational, equitable, efficient and economical use of the radio-frequency spectrum by all radiocommunication services, including those using satellite orbits, and to carry out studies and adopt recommendations on radiocommunication matters.

Links between the BIPM and the ITU-R:

  • The BIPM is a Sector Member of ITU-R.
  • ITU-R participates in the CCTF.
  • ITU is one of the partners in INetQI.
  • There is ongoing work related to the UTC time scale, particularly its dissemination and proposals for its redefinition.

BIPM contact(s):