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Office of Inspector General

Report: No Intent to Underestimate Costs Was Found, but Supporting Documentation for EPA’s Final Rule Limiting Sulfur in Gasoline Was Incomplete or Inaccurate in Several Instances

Report #16-P-0122, March 29, 2016

What Was Found

Inaccurate or incomplete documentation of the EPA's cost modeling could prevent a third party from obtaining a full and accurate understanding of how the EPA arrived at its cost estimate for the Tier 3 rule.

Report Materials

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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 Exit.

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.