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GAO-17-162R 1 (2016-10-17)

handle is hein.gao/gaobaakhv0001 and id is 1 raw text is: GAOU.S. GOVERNMENT ACCOUNTABILITY OFFICE 441 G St. N.W. Washington, DC 20548 October 17, 2016 Congressional Cor m ittees Global Positioning System: Observations on QuarterlyReports from the Air Force The satellite-based Global Positioning System (GPS) provides positioning, navigation, and timing (PNT) data to users worldwide. GPS is an essential U.S. national security asset and a key component of economic growth, national infrastructure, and transportation safety. The Department of Defense (DOD)-specifically, the Air Force-develops and operates the GPS system, which consists of three segments: space, which comprises a constellation of PNT satellites orbiting the earth; ground control, which primarily consists of running software in facilities that operate the satellites as well as monitoring and correcting signal data; and receivers, which help civil and military users employ GPS signals to determine their location, among other uses. In the past several years, GAO has issued a number of reports related to GPS programs, including the most recent detailed assessment of the next generation operational control system (OCX) and development of military GPS user equipment (MGUE).1 GAO assessed the OCX, GPS III satellites, and MGUE programs in our annual assessments of selected DOD weapon system s. 2 The National Defense Authorization Act for Fiscal Year 2016 contained a provision that the Air Force provide quarterly reports to GAO on the next generation GPS acquisition program s.3 The Act also contained a provision that GAO brief congressional defense committees on the first report, and at GAO's discretion, for subsequent quarterly reports. The Air Force delivered the first quarterly report to GAO on April 22, 2016. GAO assessed the report and briefed congressional committees in June 2016 on (1) the extent to which the Air Force's report provided transparent information on the GPS acquisition program's quarterly progress, risks, 1GAO, GPS: Actions Needed to Address Ground System Development Prob lems and UserEquipment Production Readiness, GAO-i 5-657 (Washington, D.C.: Sept. 9,2015). 2GAO, Defense Acquisitions:Assessments of Selected Weapon Programs, GAO-1 6-329SP (Washington, D.C.: Mar. 31,2016); Defense Acquisitions: Assessments of Selected Weapon Programs, GAO-1 5-342SP (Washington, D.C.: Mar. 12, 2015); and Defense Acquisitions: Assessments of Selected Weapon Programs, GAO-14-340SP (Washington, D.C.: Mar. 31,2014). 3Pub. L. No. 114-92,§ 1621 (2015). GAO-17-162R GPS Quarterly Reports Page 1

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