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Report: EPA Failed to Develop Required Cost and Benefit Analyses and to Assess Air Quality Impacts on Children's Health for Proposed Glider Repeal Rule Allowing Used Engines in Heavy-Duty Trucks

Report #20-P-0047, December 5, 2019

The EPA's actions regarding the proposed Glider Repeal Rule lacked transparency and deprived the public of required information. This report was updated on February 13, 2020, to reflect the correct action official and title in the transmittal memorandum.

Report Materials

Podcast overview of this report (9:48)

  • Report at a Glance (pdf) (271.8 KB)
  • Full Report (pdf) (1.94 MB)
  • Update: EPA Response to Report (pdf) (201.44 KB)
  • Update: IG Comment on EPA Response (pdf) (199.52 KB)

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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.

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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.

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Last updated on October 8, 2025
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