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Federal Highway Administration - MAP-21 information (summary, legislation, funding tables, program fact sheets and frequently asked questions)
Federal Transit Administration - MAP-21 information (code changes and funding information, program fact sheets, and frequently asked questions)
American Association of State Highway Transportation Officials MAP-21 Resource Center (bill summary and text, SAFETEA-LU vs. MAP-21, AASHTO analysis)
American Association of Motor Vehicle Administrators section-by-section analysis
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