EPA Rescinds 2009 Climate Endangerment Finding, Wiping Out Federal Vehicle Emissions Rules

Overview

• The move eliminates requirements to measure, report, certify and comply with greenhouse‑gas standards for cars, ending federal vehicle and engine rules for model years 2012–2027.
• The EPA projects roughly US$1.3 trillion in taxpayer savings, contrasting with earlier federal analyses that tallied large net benefits from stricter standards.
• The Environmental Defense Fund estimates the change could add more than 18 billion tonnes of emissions through 2055 and lead to up to 58,000 premature deaths and 37 million asthma attacks over three decades.
• States and environmental groups, including California’s leadership, have pledged to sue to block the revocation.
• Industry responses are mixed as legal uncertainty grows, with experts warning the action could spur broader litigation over climate regulation under the Clean Air Act.