Guidance Note 7-1 (version 8, August 2012) This document gives detailed information about the Dataset contents and its maintenance. It includes annexes covering Data Naming Conventions and Rules for Deprecation.
Guidance Note 7-2 (version 54, August 2018) This document provides the formulas for executing coordinate conversions and coordinate transformations using the coordinate operation methods supported in the EPSG dataset. Geodetic parameters in the Dataset are consistent with these formulas.
Guidance Note 7-3 (version 3.2, September 2016) This document is primarily intended to assist computer application developers in using the EPSG geodetic parameter registry service interface to extract data from the registry. The Registry GML schema files are available here.
Guidance Note 7-4 (version 4, April 2009) This document is intended to assist computer application developers in using the EPSG geodetic parameter relational database and SQL scripts. It may also be useful to other users of the data. Readers are recommended to have read Part 1 of the guidance note before this part.
For all Geomatics Committee reports, please go to IOGP Publications.