Resources for Contributors

We have centralized our effort in maintaining the Conventions software and text. Contributing authors can now access our project management website to modify text, or update code.


Modifications will not be integrated into the "Updated Conventions" or official Conventions release until they have been reviewed by the IERS Conventions co-Chairs.


To obtain login credentials, please contact us.



Please consider becoming a Contributor for the next edition of the IERS Conventions.



Access our Conventions Management Website (login required)