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Responses to 40 CFR Part 75 Petitions - 2025

Posted below are EPA's responses (in chronological order) to submitted Part 75 petitions in 2025. 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

  • Okeechobee Clean Energy Center (pdf) (275.65 KB, February 24, 2025)
    Approval for monitoring alternatives for hydrogen combustion for units OCEC1A, OCEC1B, and OCEC1C.
  • Jones Street Station (pdf) (287.59 KB, March 24, 2025)
    Approval for a waiver of the 50-ton ozone season NOx limit for units 1 and 2.
  • Montpelier Generating Station (pdf) (260.78 KB, April 9, 2025)
    Approval to use an alternative fuel flowmeter calibration procedure for units G1CT1, G1CT2, G2CT1, G2CT2, G3CT1, G3CT2, G4CT1, and G4CT2.
  • Nelson Energy Center (pdf) (206.46 KB, April 30, 2025)
    Approval to use an alternative fuel flowmeter calibration procedure for units 3 and 4.
  • T H Wharton (pdf) (254.44 KB, May 21, 2025)
    Changes to a PEMS Approval for Units THW31 through THW34 and THW41 through THW44.

Clean Air Power Sector Programs

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Contact Us About Clean Air Power Sector Programs
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Last updated on May 21, 2025
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