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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