GHG3 was rolled out under the Biden administration but came under heavy fire from trucking stakeholders, many of whom characterized it as damaging to carriers.

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Former NHTSA Administrator Ann Carlson says losing the endangerment finding could help California regulate vehicle emissions.

During a visit to Indianapolis, EPA Administrator Lee Zeldin announced the agency's plan to rescind the 2009 Endangerment Finding.

The Department of Energy isn’t traditionally the federal government’s vanguard for grand debates about climate research. But ...

RFK Jr. canceled nearly $500 million in mRNA vaccine research funding. Plus, the latest climate news, from flooding in Alaska ...

Four leading truck manufacturers are suing the state for clarification of their legal obligations in light of the "Clean ...

U.S. Rep. Hageman's comment didn't go over well in Pinedale, where residents struggled for years to clean up ...

EPA rollback of climate rules could weaken California’s clean air authority and trigger legal battles over greenhouse gas protections.

The most recent EPA rule about vehicle emissions was finalized in 2024. It set emissions limits that can realistically only be met by a large-scale shift to electric vehicles.

Trump’s EPA plans to scrap vehicle emission rules by overturning the GHG endangerment finding, reshaping US climate policy and regulatory standards.