An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Office of Inspector General

Report: EPA Does Not Always Receive Adjustment Vouchers from Contractors

Report #10-P-0075March 8, 2010

What We Found

EPA does not always receive adjustment vouchers from contractors for final negotiated indirect cost rates.

Report Materials

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.