In 2022, the National Spatial Reference System (NSRS) is scheduled to be modernized, with new reference frames replacing North American Datum (NAD) 83(2011), NAD 83(PA11) and NAD 83(MA11), or the NAD 83 system.
The North American Vertical Datum (NAVD) 88, which provides the vertical datum used in the United States, will also be replaced. One of the new frames is North American Terrestrial Reference Frame of 2022 (NATRF2022).
The other three are:
- Pacific Terrestrial Reference Frame of 2022 (PTRF2022)
- Caribbean Terrestrial Reference Frame of 2022 (CTRF2022)
- Mariana Terrestrial Reference Frame of 2022 (MTRF2022)
The main reason for this change is the realization that NAD 83 is not "as geocentric" as it should be. There is an error of almost up to 2 meters horizontally from the true center point and this has to do with
