EPA OIG Semiannual Reports to Congress

This congressionally required report summarizes the areas we reviewed over six month periods, the progress that the EPA has made, and our recommendations to help the agency improve.

For a listing of which corrective actions were not completed in previous Semiannual Reports see the Compendium of Unimplemented Recommendations.

Date	Report Periods	Publication Number
May 2025	Oct 1, 2025 - Mar 31, 2025	EPA-350-R-25-001
Nov 2025	Apr 1, 2025 - Sept 30, 2025	EPA-350-R-25-002
May 2024	Oct 1, 2023 - Mar 31, 2024	EPA-350-R-24-001
Nov 2023	Apr 1, 2023 - Sept 30, 2023	EPA-350-R-23-002
May 2023	Oct 1, 2022 - Mar 31, 2023	EPA-350-R-23-001
Nov 2022	Apr 1, 2022 – Sept 30, 2022	EPA-350-R-22-002
May 2022	Oct 1, 2021–Mar 31, 2022	EPA-350-R-22-001
Nov 2021	Apr 1, 2021 – Sept 30, 2021	EPA-350-R-21-002
May 2021	Oct 1, 2020 – Mar 31, 2021	EPA-350-R-21-001
Nov 2020	Apr 1, 2020 – Sept 30, 2020	EPA-350-R-20-002
May 2020	Oct 1, 2019 – Mar 31, 2020	EPA-350-R-20-001
Nov 2019	Apr 1, 2019 - Sept 30, 2019	EPA-350-R-19-004
May 2019	Oct 1, 2018 - Mar 31, 2019	EPA-350-R-19-001
Nov 2018	Apr 1, 2018 - Sept 30, 2018	EPA-350-R-18-003
May 2018	Oct 1, 2017 - Mar 31, 2018	EPA-350-R-18-001
Nov 2017	Apr 1, 2017 - Sept 30, 2017	EPA-350-R-17-002
May 2017	Oct 1, 2016 - Mar 31, 2017	EPA-350-R-17-001
Nov 2016	Apr 1, 2016 - Sept 30, 2016	EPA-350-R-16-002
May 2016	Oct 1, 2015 - Mar 31, 2016	EPA-350-R-16-001
Nov 2015	Apr 1, 2015 - Sept 30, 2015	EPA-350-R-15-002
May 2015	Oct 1, 2014 - Mar 31, 2015	EPA-350-R-15-001
Nov 2014	Apr 1, 2014 - Sept 30, 2014	EPA-350-R-14-002
May 2014	Oct 1, 2013 - Mar 31, 2014	EPA-350-R-14-001
Sept 2013	Apr 1, 2013 - Sept 30, 2013	EPA-350-R-13-003
May 2013	Oct 1, 2012 - Mar 31, 2013	EPA-350-R-13-001
Nov 2012	Apr 1, 2012 - Sept 30, 2012	EPA‐350‐R‐12‐003
May 2012	Oct 1, 2011 - Mar 31, 2012	EPA-350-R-12-002
Nov 2011	Apr 1, 2011 - Sept 30, 2011	EPA-350-R-11-036
May 2011	Oct 1, 2010 - Mar 31, 2011	EPA-350-R-11-005
Nov 2010	Apr 1, 2010 - Sept 30, 2010	EPA-350-R-10-005
May 2010	Oct 1, 2009 - Mar 31, 2010	EPA-350-R-10-004
Sept 2009	Apr 1, 2009 - Sept 30, 2009	EPA-350-R-09-036
May 2009	Oct 1, 2008 - Mar 31, 2009	EPA-350-R-09-003
Nov 2008	Apr 1, 2008 - Sept 30, 2008	EPA-350-R-08-004
May 2008	Oct 1, 2007 - Mar 31, 2008	EPA-350-R-08-003
Nov 2007	Apr 1, 2007 - Sept 30, 2007	EPA-350-R-07-003
May 2007	Oct 1, 2006 - Mar 31, 2007	EPA-350-R-07-002
Oct 2006	Apr 1, 2006 - Sept 30, 2006	EPA-350-R-06-005
Apr 2006	Oct 1, 2005 - Mar 31, 2006	EPA-350-R-06-004
Dec 2005	Apr 1, 2005 - Sept 30, 2005	EPA-350-R-05-003
Apr 2005	Oct 1, 2004 - Mar 31, 2005	EPA-350-R-05-002
Nov 2004	Apr 1, 2004 - Sept 30, 2004	EPA-350-R-04-005
May 2004	Oct 1, 2003 - Mar 31, 2004	EPA-350-K-04-001
Nov 2003	Apr 1, 2003 - Sept 30, 2003	EPA-350-K-03-002
May 2003	Oct 1, 2002 - Mar 31, 2003	EPA-350-K-03-001
Nov 2002	Apr 1, 2002 - Sept 30, 2002
May 2002	Oct 1, 2001 - Mar 31, 2002	EPA-350-k-01-002
Nov 2001	April 1, 2001 - Sept 30, 2001	EPA-350-K-01-002
May 2001	Oct 1, 2000 - Mar 31, 2001	EPA-350-K-01-001
Nov 2000	Apr 1, 2000 - Sept 30, 2000
May 2000	Oct 1, 1999 - Mar 31, 2000	EPA-350-K-00-001
Nov 1999	Apr 1, 1999 - Sept 30, 1999
May 1999	Oct 1, 1998 - Mar 31, 1999	EPA-350-K-99-001
Nov 1998	Apr 1, 1998 - Sept 30, 1998	EPA-350-R-98-004
May 1998	Oct 1, 1997 - Mar 31, 1998	EPA-350-R-98-001

Compendium of Unimplemented Recommendations

The Compendium fulfills the requirement of the Inspector General Act of 1978, as amended, to identify reports containing significant recommendations described in previous Semiannual Reports to Congress on which corrective actions had not been completed.

Date	Compendium Period	Publication Number
Mar 23, 2023	Nov 15, 2021 - Dec 1, 2022
Aug 2, 2022	Mar 2017 - Mar 31, 2022
Aug 4, 2021	Mar 2017 - Mar 31, 2021	21-N-0191
Oct 31, 2014	Apr 1, 2014 - Sept 30, 2014	15-N-0008
Apr 30, 2014	Oct 1, 2013 - Mar 31, 2014	14-N-0242
Nov 15, 2013	Apr 1, 2013 - Sept 30, 2013	14-N-0016
Apr 30, 2013	Oct 1, 2012 - Mar 31, 2013	13-N-0227
Oct 31, 2012	Apr 1, 2012 - Sept 30, 2012	13-N-0035
Apr 30, 2012	Oct 1, 2011 - Mar 31, 2012	12-N-0434
Oct 31, 2011	Apr 1, 2011 - Sept 30, 2011	12-N-0034
Apr 29, 2011	Oct 1, 2010 - Mar 31, 2011	11-N-0212
Oct 26, 2010	Apr 1, 2010 - Sept 30, 2010	11-N-0006
Apr 28, 2010	Oct 1, 2009 - Mar 31, 2010	10-N-0114
Oct 28, 2009	Apr 1, 2009 - Sept 30, 2009	10-N-0018
Apr 30, 2009	Oct 1, 2008 - Mar 31, 2009	09-N-0148
Oct 31, 2008	Apr 1, 2008 - Sept 30, 2008	09-P-0014

OIG Independence of EPA

The EPA's Office of Inspector General is a part of the EPA, although Congress provides our funding separate from the agency, to ensure our independence. We were created pursuant to the Inspector General Act of 1978, as amended.

Environmental Protection Agency | Office of Inspector General
1200 Pennsylvania Avenue, N.W. (2410T) | Washington, DC 20460 | 202-566-2391
OIG Hotline: 1-888-546-8740.