Responses to 40 CFR Part 75 Petitions - 2026
Posted below are EPA's responses (in chronological order) to submitted Part 75 petitions in 2026. Note that the actual, signed and dated response sent to the designated representative constitutes EPA’s official response and governs. When a response is posted below, EPA is not aware of any differences between the posted response and the actual, signed and dated response. EPA intends, and believes, that such differences -- if any -- will be minor and non substantive. For more information, or to see petition responses from other years, return to Part 75 Petition Responses.
- Prairie Creek (pdf) - Approval to waive the requirement for providing operating data to qualify as “gas-fired” for Unit 3.
- Four Corners Steam Electric Station (pdf) - Approval of alternative substitute data for units 4 and 5.