************************************************************************ IERS Message No. 411 November 20, 2020 ************************************************************************ The ISO Geodetic Registry The ISO Geodetic Registry is a structured database of international coordinate reference systems and transformations that is accessible through an on-line registry system at https://geodetic.isotc211.org The main purpose of the Registry is to serve as the primary source for authoritative information on reference systems and transformations that can be used not only by end users but also other registries, including the ubiquitous EPSG registry. Unlike many other registries, the information contained the ISO Geodetic Registry has been either directly entered or approved by the agencies responsible for defining and maintaining the reference systems and transformations. The ISO Geodetic Registry is not meant to compete with or replace other registries but, rather, to complement them as an authoritative source for their content. The ISO Geodetic Registry also supports the implementation of the Global Geodetic Reference Frame (GGRF) under the auspices of the UN GGIM Sub-Committee on Geodesy. The GGRF Implementation Plan has recommended the use of the ISO Geodetic Registry as the authoritative source of information on geodetic reference systems and transformations in order to foster the interoperability of geodetic data and products among UN Member States. This Registry is provided under the auspices of the ISO Technical Committee on geographic information/geomatics (ISO TC-211) and conforms to the ISO standards on spatial referencing by coordinates (ISO 19111:2007) and geodetic registries (ISO 19127:2019, ISO 19135-1:2015, ISP 19135-2:2012). In the near term, it is planned to bring the Registry's data model into conformance with the new ISO 19111:2019 standard in order to properly represent modern reference systems such as dynamic reference frames and geoid-based vertical datums. A number of additional enhancements will improve the user interface. Information about these ISO standards can be found at https://www.iso.org. As specified in ISO 19135-1 and ISO 19127, a Control Body composed of geodetic experts nominated by the members of ISO/TC 211 is responsible for approving the content of the ISO Geodetic Registry together with the authoritative sources of the information. The Control Body is chaired by representatives appointed by the International Association of Geodesy, presently Michael Craymer as Chair and Larry Hothem as Vice-Chair. The contents of the Registry may be freely browsed by the general public. Comments on the Registry and its contents can also be submitted using the Registry's feedback link at the top of every Registry web page. Authorities wishing to submit their own reference systems and transformations can register for an account to do so. The Registry also provides a web service interface, allowing geospatial software to query and retrieve information from the Registry's database. For further information on the ISO Geodetic Registry, please visit the Registry website. Michael Craymer Chair, Control Body for the ISO Geodetic Registry on behalf of the Control Body ************************************************************************ IERS Messages are edited and distributed by the IERS Central Bureau. If not stated otherwise, the IERS is only the distributor of the message and is not responsible for its content. To submit texts for distribution, please write to . To subscribe or unsubscribe, please create an IERS account or modify it: https://www.iers.org/Login/Login/EN/login_node.html or write to . Archives: http://www.iers.org/Messages ************************************************************************