The IERS was established in 1987 by the International Astronomical Union (IAU) and the International Union of Geodesy and Geophysics (IUGG).

Web site: http://www.iau.org/

IAU Representative to the IERS Directing Board:
Aleksander Brzezinski

IERS Representative to the IAU Commission A2 (Rotation of the Earth) Organizing Committee:
Daniela Thaller

IERS Representative to the IAU Standards of Fundamental Astronomy (SOFA) Board:
Maria A. Davis

Ex officio IERS Associate Members:
IAU General Secretary: Piero Benvenuti
President of IAU Division A (Fundamental Astronomy): Bonnie Alice Steves
President of IAU Commission A1 (Astrometry): Aletha de Witt
President of IAU Commission A2 (Rotation of the Earth): Alberto Escapa
President of IAU Commission A3 (Fundamental Standards): Jose Manuel Ferrándiz