- your name
- your institution
- the area of interest
- the name of the geoid
- a reference e-mail of the geoid responsible
- a short description of the geoid characteristics (e.g. the ones shown on this website)
- the citation to a reference paper, or a technical report, or a presentation, etc.
- the chosen policy rule for the data distribution (see here).

and please attach the geoid file. If the file size exceeds the e-mail limit, please contact ISG to agree on a different solution.