Today marks the 10th anniversary of the end of Selective Availability. Until it was turned off on May 1, 2000, GPS signals available to the public were only accurate to within 100 metres. In hindsight, especially when you consider how pervasive GPS is in electronics today, it may have been one of the most significant acts of the Clinton administration. Just imagine what we couldn’t do if SA was still in effect. AnyGeo, GPS Tracklog.