[PROJ] NOAA VDatum Tidal Grids and PROJ CDN

[Greg Troxel]

Eric Younkin - NOAA Federal via PROJ <proj at lists.osgeo.org> writes:

> In addition, we are in the process of compiling a metadata package to
> formally register these vertical CRS/datum transformations to EPSG, would
> using the CDN as a distribution mechanism + EPSG registration allow us to
> use these transformations in PROJ?

I am curious if NOAA has a view about interacting with

  https://geodetic.isotc211.org/

It's not clear to me where on the path from concept to full implemention
the ISO registry is.  At a quick glance it seems to contain only a small
fraction of what is in the EPSG database.
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