This testimony discusses US Government Accountability Office's (GAO's) recent report entitled "Opportunities to Reduce Potential Duplication in Government Programs, Save Tax Dollars, and Enhance Revenue." This report delineates dozens of areas across government where fragmentation, overlap, and potential duplication merit the attention of Congress and the Administration spanning a range of government missions: agriculture, defense, economic development, energy, general government, health, homeland security, international affairs, and social services. The report also describes other opportunities for federal departments, agencies or Congress to consider taking action on that could either reduce the cost of government operations or enhance revenue collections for the Treasury. Taking actions on these opportunities and reducing or eliminating duplication, overlap, or fragmentation could save billions of tax dollars annually and help agencies provide more efficient and effective services. With regard to issues of specific interest to this Committee, GAO found fragmentation, overlap, and potential duplication in the areas of federal programs to improve teacher quality and employment and training. Each of these areas is characterized by a large number of programs with similar goals, beneficiaries, and allowable activities that are administered by multiple federal agencies. Fragmentation of programs exists when programs serve the same broad area of national need but are administered across different federal agencies or offices. Program overlap exists when multiple agencies or programs have similar goals, engage in similar activities or strategies to achieve them, or target similar beneficiaries. Overlap and fragmentation among government programs or activities can be harbingers of unnecessary duplication. Given the challenges associated with fragmentation, overlap, and potential duplication, careful, thoughtful actions will be needed to address these issues. This testimony draws upon the results of our recently issued report and will address what is known about fragmentation, overlap, and potential duplication among federal teacher quality and employment and training programs. It also addresses options for Congress to help minimize fragmentation, overlap, and potential duplication and how it can use recent legislative tools to improve the effectiveness and efficiency of federal programs. (Contains 2 figures and 8 footnotes.).