❓WHAT HAPPENED: The Environmental Protection Agency (EPA) unveiled a proposal to rescind the legal basis for federal regulation of gas-powered vehicle emissions and electric vehicle (EV) mandates established during the Obama administration.
👤WHO WAS INVOLVED: EPA Administrator Lee Zeldin, former EPA Chief of Staff Mandy Gunasekara, and legal experts including Steve Milloy and Michael Buschbacher.
📍WHEN & WHERE: Announced on Tuesday, July 29, 2025.
💬KEY QUOTE: “This will basically drive a dagger into the heart of the climate change religion.” – Lee Zeldin
🎯IMPACT: If finalized, the proposal could dismantle the regulatory framework for federal climate policies, reshaping the U.S. energy and environmental landscape.
The Trump administration’s Environmental Protection Agency (EPA) has proposed rescinding the 2009 endangerment finding issued under the Obama administration. This finding declared greenhouse gas emissions, including carbon dioxide and methane, as threats to public health, enabling sweeping federal climate regulations.
EPA Administrator Lee Zeldin announced the proposal on Tuesday morning, stating, “This will basically drive a dagger into the heart of the climate change religion.” The 2009 finding has been the foundation for numerous regulations, including those targeting vehicle emissions, coal-fired power plants, and methane emissions from oil and gas operations.
The Biden government had relied on the same finding to enforce electric vehicle (EV) mandates and other climate policies. Former EPA chief of staff Mandy Gunasekara noted, “It is the activating document to the entirety of our substantive greenhouse gas regulations.” Steve Milloy, a senior legal fellow at the Energy & Environment Legal Institute, added, “If they get rid of the endangerment finding, then the rationale for all federal action on climate kind of goes away.”
The proposal, if finalized, would empower the EPA to reverse regulations governing greenhouse gas emissions, potentially reducing regulatory burdens on industries reliant on fossil fuels. However, legal experts, including Michael Buschbacher, caution that the proposal may face significant legal challenges. “Unless this is done really, really well, this has the potential of being a kind of regulatory Vietnam,” he said.
Notably, Zeldin and Department of Energy Secretary Chris Wright both contend that the EPA can rescind the Obama-era greenhouse gas finding under the legal framework created by the U.S. Supreme Court’s 2024 Loper Bright Enterprises v. Raimondo ruling, which dramatically altered the legal principle of Chevron deference.
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