Canada

• The U.S. is replacing NAD83 with NATRF2022: what this means for Canada
• Mind the gap! A new position reference
• Reference Frame Modernization in Canada

United States

U.S. National Spatial Reference System (NSRS) blueprint documents:

• Part 1: Geometric Coordinates and Terrestrial Reference Frames (2017a)
• Part 2: Geopotential Coordinates and Geopotential Datum (2017b)
• Part 3: Working in the Modernized NSRS (2019a)