November 5, 2025

Guide to 2026 GPS Datum Shift

Changes to the reference systems behind GPS are coming in 2026, and this could mean boundaries, A-B lines and other mapped data could be affected.

Potentially, coordinates could move 1-4 meters leading to:

  • Mapped features appearing in the wrong location
  • Auto-steer A-B lines drifting off course
  • Field edges no longer matching real-world layout

Learn more in this GUIDE published by Iowa State Extension:

credit: Integrated Crop Management News and Iowa State University Extension and Outreach