This report formally transmits the attached briefing in response to the Senate Appropriations Committee Report accompanying the Department of Defense Appropriations Bill for fiscal year 2010 (S. Rep. No. 111-74, pp. 155-156). The Committee Report requires the Government Accountability Office to provide information on the differences between Department of Defense and Military Service requirements for corrosion prevention and control projects for fiscal year 2011 and provide the results to the Senate Appropriations Committee within 60 days after submission of the Department of Defense budget.