When was Selective Availability (SA) turned off by the U.S. military?

Selective Availability (SA) was a feature intentionally implemented by the U.S. military to degrade the accuracy of GPS signals available to civilian users. This was done as a security measure to prevent adversaries from using precise GPS data. The decision to turn off Selective Availability was made in May 2000, significantly improving the accuracy of GPS for civilian applications.

With SA turned off, civilian GPS users began to receive signals with an accuracy level close to that of military users, which marked a pivotal moment in the history of navigation technologies. This change allowed the widespread adoption of GPS technology across various sectors, including transportation, agriculture, and personal navigation, leading to significant advancements in many fields.