The GAO was asked to assess
- (1) the status of U.S. Air Force efforts to develop and deliver new GPS satellites, the availability of the GPS constellation, and the potential impacts on users if the constellation availability diminishes below its committed level of performance;
- (2) efforts to acquire the GPS ground control and user equipment necessary to leverage GPS satellite capabilities;
- (3) the GPS interagency requirements process; and
- (4) coordination of GPS efforts with the international PNT community.