Relevant for the standards and conventions in geodesy and related disciplines are the resolutions, which have been adopted by the Councils of

• the International Union of Geodesy and Geophysics (IUGG)
• the International Association of Geodesy (IAG)
• the International Astronomical Union (IAU)

Other entities involved in standards and conventions are, e.g.,

• the International Bureau for Weights and Measures (BIPM)
• the Committee on Data for Science and Technology (CODATA)
• the International Organization for Standardization (ISO)
• the National Institute of Standards and Technology (NIST)
• the Open Geospatial Consortium (OGC)
• the Technical Committee ISO/TC211

Further collaboration regarding standards, products and outreach:

• United Nations Global Geodetic Centre of Excellence (UN-GGCE): https://ggim.un.org/UNGGCE/
• UN-GGIM Subcommittee on Geodesy (SCoG): https://ggim.un.org/unggim-wg1/