Company: WELPM
Filing Date: 2025-08-01
Form Type: 10-Q
Source: 0000107815-25-000204
Chunk: 123

Company: WISCONSIN ELECTRIC POWER CO
Filing Date: 2025-08-01
Form: 10-Q
Item: Part I, Item 8
Chunk 123
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, the PM Standard, the GHG Power Plant Rule, the Mandatory Greenhouse Gas Reporting Rule, the ELG, and the CCR Rule. Any EPA actions will require formal rulemaking proceedings and any such actions are likely to be subject to legal challenges. We continue to monitor and evaluate potential risks and benefits to us, depending on the actions ultimately taken.

06/30/2025 Form 10-Q20Wisconsin Electric Power Company

In July 2025, the EPA proposed to rescind a 2009 declaration that determined that CO2 and other GHGs endanger public health and welfare. The "endangerment finding" is the legal underpinning of a host of climate regulations under the CAA. The proposal is subject to a review process and public comment and will likely be litigated. We are monitoring the status of the proposal and assessing the potential impact on our business and operations.Air QualityCross State Air Pollution Rule – Good Neighbor Rule In March 2023, the EPA issued its final Good Neighbor Rule, which became effective in August 2023 and requires significant reductions in ozone-forming emissions of NOx from power plants and industrial facilities. After review of the final rule, we believe we are well positioned to meet the requirements.Our RICE units are not currently subject to the final rule as each unit is less than 25 MWs. To the extent we use RICE engines for natural gas distribution operations, those engines not part of an LDC are subject to the emission limits and operational requirements of the rule beginning in 2026. The EPA has exempted LDCs from the final rule.In February 2024, the Supreme Court heard oral arguments regarding stay applications related to the EPA's Good Neighbor Rule. In June 2024, the Supreme Court granted a stay of the Good Neighbor Rule pending disposition of the applicants' petitions for review at the D.C. Circuit Court of Appeals. After a series of procedural motions and orders, in March 2025, the D.C. Circuit Court of Appeals issued an order removing the case from its active docket and holding the case in abeyance, pending quarterly updates from the parties beginning in July 2025. We will continue to monitor this case as arguments at the D.C. Circuit Court of Appeals move forward.In November 2024, the EPA issued a Good Neighbor Interim Final Rule that administratively stayed the effectiveness of the Good Neighbor Rule in all states to which it originally applies and ensured implementation of good neighbor obligations previously established to address the 200