Eleven of 21 agencies underreport planned cost savings between fiscal years 2012 and 2015 by around $2.2 billion under the Federal Data Center Consolidation Initiative, GAO said Thursday.
GAO also found that 19 of the 24 FDCCI participating agencies reported approximately $1.1 billion in total cost savings and avoidances from FY 2011 to 2013.
The departments of Defense, Treasury and Homeland Security accounted for $850 million of the overall data center savings during the past three fiscal years, the report states.
Agencies aim to collectively save as much as $5.3 billion by FY 2017 through the program, according to GAO.
GAO recommended that the Office of Management and Budget guide agencies in meeting FCCI reporting requirements, as well as develop metrics for addressing data center server utilization.